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EPSON Stylus PHOTO 890/1280/1290

EPSON Stylus PHOTO 890/1280/1290

Color ink jet printer

SEIJ00025

SERVICE MANUAL

Stylus PHOTO 890

Stylus PHOTO 1290/1280

Notice

mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

The contents of this manual are subject to change without notice.

All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences

thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

Imaging & Information Product Division

TPCS Quality Assurance Center

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing

procedures preceded by DANGER Headings.

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS

TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN

THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON

PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT

BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN

ACCESSING INTERNAL COMPONENTS.

5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR

OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE

WARRANTY OFFERED BY EPSON.

PREFACE

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus PHOTO 890/1280/

1290. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the

preceding page. The chapters are organized as follows:

CHAPTER 1. PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3. TROUBLESHOOTING

Provides the step-by-step procedures for troubleshooting.

CHAPTER 4. DISASSEMBLY AND ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the

product.

CHAPTER 5. ADJUSTMENTS

Provides Epson-approved methods for adjustment.

CHAPTER 6. MAINTENANCE

Provides preventive maintenance procedures and the lists of Epson-approved

lubricants and adhesives required for servicing the product.

APPENDIX

Provides the following additional information for reference:

• EEPROM Address Map

• Connector Pin Assignments

• Component Layout

• Exploded Diagrams

• Electrical Board Circuit Diagrams

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present

during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.

Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or

destruction of, equipment.

May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also

provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

CHECK

P O I N T

W ARNING

Revision Status

Revision Issued Date Description

A November 16, 2000 First Release

B December 27, 2000

Revision:

• page -78: A warning message for static electricity added.

• page -79: Caution messages for torque and ink tube position added

• page -90& page -92: Caution messages for ink tube installation added.

• page -121: PG adjustment tool added.

C February 8, 2001

Revision:

• All chapters: Stylus PHOTO 1280(for EAI) added.

• page -68: Misdescription for Maintenance Request Error corrected.

• page -128: Stylus PHOTO 1280(for EAI) added to Destination in the adjustment program.

• page -182: C393 MAIN-C Board circuit diagram added.

D June 4,2002 Revision:

• “Lubrication” on page -156: The lubrication of Oil O-12 for the Stylus Photo 1280/1290 added.

Table of Contents

Chapter 1 PRODUCT DESCRIPTIONS

1.1 Overview ............................................................................................................ 11

1.1.1 Features ...................................................................................................... 11

1.1.2 Accessories, Consumable Products, and Options ...................................... 12

1.2 Basic Specifications .......................................................................................... 14

1.2.1 Printing Specification ................................................................................ 14

1.2.2 Control Code .............................................................................................. 14

1.2.3 Paper Feeding ............................................................................................ 14

1.2.4 Input Data Buffer ....................................................................................... 14

1.2.5 Paper Specifications ................................................................................... 15

1.2.5.1 EPSON Special Media ...................................................................... 15

1.2.6 Printing Area .............................................................................................. 17

1.2.6.1 Cut Sheet ........................................................................................... 17

1.2.6.2 Envelopes .......................................................................................... 18

1.2.7 Adjust Lever .............................................................................................. 18

1.2.8 Ink Cartridge .............................................................................................. 19

1.2.9 Electric Specification ................................................................................. 20

1.2.10 Reliability ................................................................................................ 20

1.2.11 Environmental Condition ......................................................................... 21

1.3 Interface ............................................................................................................. 22

1.3.1 Parallel Interface (Forward Channel) ........................................................ 22

1.3.2 Parallel Interface (Reserve Channel) ......................................................... 25

1.3.3 USB Interface ............................................................................................ 26

1.3.4 Prevention of Data Transfer Time-out ....................................................... 27

1.3.5 Interface Selection ..................................................................................... 27

1.3.6 IEEE1284.4 Protocol ................................................................................. 27

1.4 Operations ......................................................................................................... 28

1.4.1 Buttons ....................................................................................................... 28

1.4.2 Indicators ................................................................................................... 28

1.4.3 Panel Functions .......................................................................................... 28

1.4.4 Special Setting Mode ................................................................................. 29

1.4.5 Printer Initialization ................................................................................... 30

1.4.6 Initialization Value .................................................................................... 30

1.5 Dimension .......................................................................................................... 31

Chapter 2 OPERATING PRINCIPLES

2.1 Overview ............................................................................................................ 34

2.1.1 Printhead Mechanism ................................................................................ 35

2.1.2 Carriage Mechanism .................................................................................. 36

2.1.2.1 Carriage Motor (CR Motor) .............................................................. 36

2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism ..................... 37

2.1.2.3 Carriage Home Position (HP) Detection ........................................... 37

2.1.3 Paper Feeding Mechanism ......................................................................... 37

2.1.3.1 CR Lock Mechanism ......................................................................... 39

2.1.4 Paper Loading Mechanism ........................................................................ 40

2.1.4.1 Drive Transmission to the ASF Unit ................................................. 40

2.1.4.2 Paper Loading Operation .................................................................. 41

2.1.4.3 Pump Mechanism .............................................................................. 42

2.1.4.4 Capping Mechanism .......................................................................... 43

2.2 Electrical Circuit Operating Principles .......................................................... 44

2.2.1 C378PSB/PSE Board ................................................................................. 44

2.2.1.1 Electrical Circuit ............................................................................... 44

2.2.1.2 Protection Circuits ............................................................................. 46

2.2.1.3 Power Supply Control Function ........................................................ 46

2.2.1.4 Energy Save Mode ............................................................................ 46

2.2.2 C393MAIN Board Circuit Operation Principles ....................................... 47

2.2.2.1 Printhead Driver Circuit .................................................................... 50

2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit ........................... 51

2.2.2.3 Motor Driver Circuit ......................................................................... 52

2.2.2.4 ASF/Pump Motor Driver Circuit ....................................................... 57

2.2.2.5 Sensor Circuit .................................................................................... 58

Chapter 3 TROUBLESHOOTING

3.1 Overview ............................................................................................................ 61

3.1.1 Self-Diagnostic Function ........................................................................... 62

3.1.1.1 Troubleshooting with LED Error Indicators ..................................... 62

3.1.1.2 Error Conditions ................................................................................ 62

3.1.1.3 Remedies for Paper Out Error ........................................................... 65

3.1.1.4 Remedies for the Paper Jam Error ..................................................... 67

3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ........... 67

3.1.1.6 Remedies for Maintenance Request Error ......................................... 68

3.1.1.7 Remedies for Fatal Error ................................................................... 69

3.1.2 Isolating the Faulty Part on the Power Supply Board ................................ 72

3.1.3 Isolating the Faulty Part according to the Phenomenon ............................ 72

Chapter 4 DISASSEMBLY AND ASSEMBLY

4.1 Overview ............................................................................................................ 78

4.1.1 Precaution for Disassembling the Printer .................................................. 78

4.1.2 Tools .......................................................................................................... 79

4.1.3 Specifications for Screws .......................................................................... 80

4.1.4 Service Checks After Repair ..................................................................... 81

4.2 Disassembly Procedures ................................................................................... 82

4.2.1 HOUSING Removal .................................................................................. 83

4.2.2 Circuit Board Assembly Removal ............................................................. 84

4.2.3 Panel Unit Removal ................................................................................... 86

4.2.4 Printhead Unit Removal ............................................................................ 88

4.2.5 TRAY, ABSORBER ASSEMBLY Removal ............................................ 89

4.2.6 Ink Unit Removal ...................................................................................... 91

4.2.7 MOTOR ASSEMBLY, CR Removal ........................................................ 94

4.2.8 MOTOR ASSEMBLY, ASF Removal ...................................................... 95

4.2.9 DE Unit Removal ...................................................................................... 96

4.2.10 ASF Unit Removal .................................................................................. 99

4.2.10.1 SHAFT, ROLLER, LD Removal .................................................. 101

4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal ................. 106

4.2.11 Carriage Unit Removal .......................................................................... 107

4.2.12 BOARD ASSEMBLY, ENCODER Removal ....................................... 109

4.2.13 ROLLER, PF Removal .......................................................................... 110

4.2.13.1 SCALE, PF Installation ................................................................. 113

4.2.14 MOTOR ASSEMBLY, PF Removal ..................................................... 116

4.2.15 PE Sensor Unit Removal ....................................................................... 117

Chapter 5 ADJUSTMENT

5.1 Overview .......................................................................................................... 119

5.1.1 Adjustment Items ..................................................................................... 119

5.1.2 Adjustment Tools ..................................................................................... 120

5.2 Adjustment ...................................................................................................... 121

5.2.1 Parallelism Adjustment ............................................................................ 121

5.2.1.1 Using PG Adjustment Tool ............................................................. 121

5.2.1.2 Using Thickness Gauge ................................................................... 124

5.2.2 Backlash Adjsutment ............................................................................ 125

5.2.3 Adjustment Program Feature ................................................................... 127

5.2.3.1 How to Install the Program ............................................................. 128

5.2.3.2 How to Uninstall the Program ......................................................... 128

5.2.4 Starting the Service Program ................................................................... 128

5.2.4.1 Adjusting Program Initial Setting ................................................... 128

5.3 Individual Adjustment Program ................................................................... 130

5.3.1 Head ID .................................................................................................... 130

5.3.1.1 Head ID Input ............................................................................... 130

5.3.1.2 Head ID Check ................................................................................ 132

5.3.2 Bi-Directional Adjustment .................................................................... 133

5.3.2.1 Input Bi-D Adjustment Value ...................................................... 135

5.3.2.2 Check Present Adjustment Data ...................................................... 136

5.3.3 Input/Check USB ID ............................................................................... 137

5.3.3.1 Input USB ID .................................................................................. 138

5.3.3.2 Check USB ID ................................................................................. 138

5.3.4 Maintenance ............................................................................................. 139

5.3.4.1 Head Cleaning Operation ................................................................ 139

5.3.5 Ink Charge Operation ............................................................................. 140

5.3.6 Refurbishment for DOA .......................................................................... 141

5.3.7 Protection Counter ................................................................................... 143

5.3.7.1 Check the Present Counter Value .................................................... 143

5.3.7.2 Clear the Protection Counter Value ................................................ 143

5.3.8 Appendix Items ........................................................................................ 145

5.3.8.1 CSIC Information ......................................................................... 145

5.3.8.2 EEPROM Data Check ................................................................... 146

5.3.8.3 Changing EEPROM Data .............................................................. 146

5.3.9 A4 Check Pattern Printing ....................................................................... 147

5.4 Sequential Repair Adjustment Program ...................................................... 149

5.4.1 Function ................................................................................................... 149

5.4.1.1 How to start the program ................................................................. 149

5.4.1.2 Printhead Removal .......................................................................... 150

5.4.1.3 Printhead Replacement .................................................................... 151

5.4.1.4 Main Board Replacement ................................................................ 152

5.4.1.5 Carriage Unit Replacement/ Removal ............................................. 152

5.4.1.6 CR Motor Replacement ................................................................... 152

5.4.1.7 Printer Mechanism Replacement .................................................... 152

5.4.1.8 Waste Ink Pad Replacement ............................................................ 152

5.4.1.9 Clogged Nozzle Recovery ............................................................... 152

Chapter 6 MAINTENANCE

6.1 Overview .......................................................................................................... 155

6.1.1 Cleaning ................................................................................................... 155

6.1.2 Service Maintenance ................................................................................ 155

6.1.2.1 Head Cleaning ................................................................................. 155

6.1.2.2 Maintenance Request Error Clear ................................................... 155

6.1.3 Lubrication ............................................................................................... 156

Chapter 7 APPENDIX

7.1 Connector Summary ...................................................................................... 166

7.1.1 Connector Alignment ............................................................................... 166

7.1.2 Connector Pin Assignment ...................................................................... 166

7.1.3 EEPROM Address Map ........................................................................... 169

7.2 Circuit Board Component Layout ................................................................ 174

7.3 Electrical Circuit Board Diagrams ............................................................... 179

7.4 Exploded Diagrams ........................................................................................ 186

7.4.1 Exploded Diagrams for Stylus PHOTO 890 ........................................... 186

7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290 ................................ 191

7.5 Parts List ......................................................................................................... 196

7.5.1 Parts List for Stylus PHOTO 890 ............................................................ 196

7.5.2 Parts List for Stylus PHOTO 1280/1290 ................................................. 201

CHAPTER

PRODUCT DESCRIPTIONS

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Overview 11

1.1 Overview

The EPSON Stylus PHOTO 890 and EPSON Stylus PHOTO 1280/1290 are designed

for both home use and office use. Stylus PHOTO 1280 is for EAI use only.

1.1.1 Features

The main features of the products are:

High-quality color print (6 colors)

High-speed & image quality bidirectional printing

Photo quality print enabled by photo mach technology

Supports microweave and super microweave

Prints at high resolution (2880x 720 dpi)

Two built-in interfaces

Bi-directional parallel interface (IEEE-1284 level 1 device)

USB I/F

Small size requiring less space.

Used only in Windows or Macintosh environment.

Built-in ASF (auto sheet feeder) supports multiple sizes of paper.

Stylus PHOTO 890: From postcard size up to A4

Stylus PHOTO 1280/1290: From postcard size up to A3 (W)

CSIC keeps track of ink life information on the ink cartridge side.

Figure 1-1. Stylus PHOTO 890

Figure 1-2. Stylus PHOTO 1280/1290

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Overview 12

1.1.2 Accessories, Consumable Products, and Options

ACCESSORIES

Users Guide

Ink cartridge (Black and color)

CD-ROM (Printer driver and utilities)

CONSUMABLE PRODUCTS

NOTE: The product codes of the ink cartridges may vary by location.

NOTE: The availability of special media varies by location.

NOTE: The products with an asterisk (*)are only available for Stylus PHOTO

1280/1290.

Table 1-1. Consumable Products

Product Name Code

Black ink cartridge T007

Color ink cartridge (Stylus PHOTO 890) T008

Color ink cartridge (Stylus PHOTO 1280/1290) T009

EPSON Premium Ink Jet Plain Paper (A4) S041214

EPSON 360 dpi Ink Jet Paper (A4)

EPSON 360 dpi Ink Jet Paper (Letter)

EPSON 360 dpi Ink Jet Paper (A3)*

EPSON 360 dpi Ink Jet Paper (Super A3/B)*

S041059/S041025

S041060/S041028

S041065/S041046

S041066/S041047

EPSON Iron-On Cool Peel Transfer Paper (A4)

EPSON Iron-On Cool Peel Transfer Paper (Letter)

EPSON Iron-On Cool Peel Transfer Paper (A3)*

S041154

S041153/S041155

S041238

EPSON Photo Quality Ink Jet Paper (A4)

EPSON Photo Quality Ink Jet Paper (Letter)

EPSON Photo Quality Ink Jet Paper (Legal)

EPSON Photo Quality Ink Jet Paper (A3)*

EPSON Photo Quality Ink Jet Paper (Super A3/B)*

EPSON Photo Quality Ink Jet Paper (B)*

S041061/S041026

S041062/S041029

S041067/S041048

S041068/S041045

S041069/S041043

S041070/S041044

EPSON Photo Quality Ink Jet Cards (A6)

EPSON Photo Quality Ink Jet Cards(5x8”)

EPSON Photo Quality Ink Jet Cards(8x10”)

S041054

S041121

S041122

EPSON Photo Quality Self Adhesive Sheet (A4) S041106

EPSON Ink Jet Note Cards A6 (with envelops) S041147

EPSON Ink Jet Greeting Cards 5x8” (with envelopes)

EPSON Ink Jet Greeting Cards 8x10” (with envelopes)

S041148

S041149

EPSON Matte Paper-Heavyweight (A4)

EPSON Matte Paper-Heavyweight (Letter)

EPSON Matte Paper-Heavyweight (A3)*

EPSON Matte Paper-Heavyweight (Super A3/Super B)*

S041256/S041258/

S041259

S041257

S041260/S041261/

S041262

S041263/S041264/

S041265

EPSON Photo Paper (A4)

EPSON Photo Paper (Letter)

EPSON Photo Paper (A3)*

EPSON Photo Paper (Super A3/Super B)*

EPSON Photo Paper (B)*

EPSON Photo Paper (4x6”)

EPSON Photo Paper (100 x 150 mm)

EPSON Photo Paper (200 x 300 mm)

EPSON Photo Paper (89 mmx 7M)

EPSON Photo Paper (100 mm x 8M)

EPSON Photo Paper (210 mm x 10M)

EPSON Photo Paper (329 mm x 10M)*

S041140

S041141

S041142

S041143

S041156

S041134

S041255

S041254

S041281

S041279

S041280

S041233

EPSON Panoramic Photo Paper (210 x 594 mm) S041145

EPSON Photo Paper Cards (A4) S041177

Table 1-1. Consumable Products (continued)

Product Name Code

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Overview 13

OPTIONS

* The asterisks are substitutions for the last digits of the product name, which may vary by

country.

Photo Quality Glossy Film (A4)

Photo Quality Glossy Film (Letter)

Photo Quality Glossy Film (A3)*

Photo Quality Glossy Film (Super A3/B)*

Photo Quality Glossy Film (B)*

Photo Quality Glossy Film (A6)

S041071

S041072

S041073

S041074

S041075

S041107

EPSON Photo Stickers 16 (A6)

EPSON Photo Stickers 4 (A6)

S041144

S041176

EPSON Ink Jet Transparencies (A4)

EPSON Ink Jet Transparencies (Letter)

S041063

S041064

EPSON Premium Glossy Photo Paper (A4)

EPSON Premium Glossy Photo Paper (Letter)

EPSON Premium Glossy Photo Paper (A3)*

EPSON Premium Glossy Photo Paper (B)*

EPSON Premium Glossy Photo Paper (Super A3/ SuperB)*

S041287/S041297

S041286

S041288

S041290

S041289

EPSON Ink Jet Back Light Film (A3)* S041131

Table 1-2. Options

Product Name Code

Parallel Interface cable (shielded) C83602*

USB I/F Interface cable (shielded) C83623*

Roll Paper Holder C81106*

Table 1-1. Consumable Products (continued)

Product Name Code

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 14

1.2 Basic Specifications

1.2.1 Printing Specification

Print Method: On demand ink jet

Nozzle Configuration

Monochrome: 48 nozzles (120 dpi)

Color: 48 nozzles x 5 (Cyan, Magenta, Yellow, Light cyan,

Light magenta) (120 dpi)

The following figure shows nozzle configuration viewed from the back of the

printhead:

Figure 1-3. Nozzle Configuration

Print Direction Bi-direction with logic seeking

Print Speed & Printable Columns

Character Mode

* The value is the speed of normal-dot printing.

Raster Graphic Mode

1.2.2 Control Code

ESC/P Raster command

EPSON Remote command

1.2.3 Paper Feeding

Feeding method: Friction feed with ASF

Paper Path: Cut-sheet ASF (top entry, front out)

Feed Speed: 110mm/sec (10.16mm feed)

152.4mm(6.0inch)/sec (Fast, continues feed)

1.2.4 Input Data Buffer

256 KB

Table 1-3. Character Mode

Model Character Pitch Printable Columns LQ Speed

Stylus PHOTO 890 10 CPI (Pica) 80 238CPS*

Stylus PHOTO 1280/

1290 10 CPI (Pica) 127 238CPS*

Table 1-4. Raster Graphics Mode

Model Horizontal

Resolution Printable

Area Available Dot CR Speed

Stylus PHOTO 890

180 dpi 209.8mm/

8.26” 1488 23.8/19 IPS

360 dpi 209.8mm/

8.26” 2976 23.8/19 IPS

720 dpi 209.8mm/

8.26” 5952 19 IPS

Stylus PHOTO

1280/1290

180 dpi 322.986mm/

12.716” 2289 23.8/19 IPS

360 dpi 322.986mm/

12.716” 4578 23.8/19 IPS

720 dpi 322.986mm/

12.716” 9156 19 IPS

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 15

1.2.5 Paper Specifications

The asterisk(*) indicates Stylus PHOTO 1280/1290 use only.

CUT SHEET

Size: See the table below:

Quality: Plain paper, Bond paper

Thickness: 0.08mm- 0.11mm (0.003”- 0.004”)

(Normal paper)

Weight: 64g/m2 - 90g/m2 (55kg-78kg, 17lb.- 24Ib.)

ENVELOPE

Size (Width x Length):

#10 241.3mm (9 1/2”) x 104.8mm(4 1/8”)

DL 220mm (8.7”) x 110mm (4.3”)

C6 162mm (6.4”) x 114mm (4.5”)

220 x 132 220mm x 132 mm

Thickness: 0.16mm (0.006”) - 0.52mm (0.02”)

Weight: 45g/m2 (12Ib.) - 75g/m2 (20Ib.)

Quality: Bond paper, PPC, Air mail

Note1: Envelope printing is only available at normal temperature.

Note 2: Keep the longer side of the envelope horizontally at setting.

1.2.5.1 EPSON Special Media

EPSON offers specifically- designed media for ink jet printers.

PHOTO QUALITY INK JET PAPER

Size (Width x Length):

A3+*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

A6 105mm x 148mm

B*210mm x 297mm

Letter 216mm x 279mm

Legal 216mm x 356mm

5” x 8” 127mm x 203mm

8” x 10” 203mm x 254mm

Table 1-5. Paper Specifications - Cut Sheet

Size Specifications (Width x Length)

A3*297mm (11.7”) x 420mm (16.5”)

A4 210 mm (8.3”) x 297 mm (11.7”)

A5 148 mm x 210 mm

A6 148mm x 105 mm

B*279 mm x 432

Letter 216 mm (8.5”) x 279 mm (11.0”)

Half Letter 139.7 mm x 215.9 mm

Legal 216 mm (8.5”) x 356 mm (14.0”)

Executive 184.2 mm (7.25”) x 266.7 mm (10.5”)

2L 178 mm x 127 mm

L 127 mm x 127 mm

5” x 8” 127 mm x 203 mm

8” x 10” 203 mm x 254 mm

Double Side A4 210 mm x 297 mm

User Defined 89 to 241.3 mm x 89 to 1117.6 mm

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 16

360 DPI INK JET PAPER

Size (Width x Length):

A3+*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

A6 105mm x 148mm

Letter 216mm x 279mm

INK JET TRANSPARENCIES

Size (Width x Length):

A4 210mm x 297mm

Letter 216mm x 279mm

PHOTO QUALITY GLOSSY FILM

Size (Width x Length):

A3+*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

A6 105mm x 148mm

B*210mm x 297mm

Letter 216mm x 279mm

PHOTO PAPER

Size (width x length):

+A3*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

A6* 105mm x 148mm

B*210mm x 297mm

Letter 216mm x 279mm

Photo Paper Card 2 175.4mm x 113.6mm (cut-line)

Panoramic Photo Paper 210mm x 594mm

152.4mm (6“) x 101.6mm (4“)(no cut-line)

100mm x 150mm

200 x 300mm 216mm x 338mm(cut-line)

Roll Paper (89mm x 7m, 100mm x 8m,

210mm x 10m, 329mm x 10m*)

PHOTO QUALITY ADHESIVE SHEET

Size (Width x Length):

A4 210mm x 297mm

Letter 216mm x 279mm

IRON-ON COOL PEEL TRANSFER PAPER

Size (Width x Length):

A3 *297mm x 420mm

A4 210mm x 297mm

Letter 216mm x 279mm

PHOTO STICKERS

Size (Width x Length):

A6 105mm x 148mm /16

A6 105mm x 148mm /4

MATTE PAPER-HEAVYWEIGHT

Size (Width x Length):

A3+*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

B*210mm x 297mm

Letter 216mm x 279mm

100mm x 150mm

Roll Paper (89mm x 7m, 100mm x 8m,

210mm x 10m, 329mm x 10m*)

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 17

PREMIUM GLOSSY PHOTO PAPER

Size (Width x Length):

+A3*329mm x 483mm

A3 *297mm x 420mm

A4 210mm x 297mm

B*210mm x 297mm

Letter 216mm x 279mm

Roll Paper (89mm x 7m, 100mm x 8m,

127mm x 8m*,210mm x 10m,

329mm x 10m*)

INK JET BACK LIGHT FILM

Size (Width x Length):

A3* 297mm x 420mm

1.2.6 Printing Area

1.2.6.1 Cut Sheet

See the figure below and the following tables for the printing area for Stylus PHOTO

890/Stylus PHOTO 1280/1290.

Figure 1-4. Printable Area for Cut Sheet

Printable Area

LM RM

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 18

* : Stylus PHOTO 1290 only.

*1:Bottom margin can be reduced to 3mm when paper dimension is

defined by using command, otherwise it remains 14mm.

As for an area between 3mm and 14mm margin, print quality may

decline.

*2: Zero mm can be set by special command.

1.2.6.2 Envelopes

Figure 1-5. Printable Area for Envelopes

1.2.7 Adjust Lever

Set the adjust lever according to the type of paper as shown in the following table.

Table 1-6. Printing Area

Paper Size Left Margin

(min.) Right Margin

(min.) Top Margin

(min.) Bottom Margin

(min.)

A3* 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

A3+* 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

A4 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

Letter 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

B5 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

Legal 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

Statement 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

Exclusive 3 mm

(0.12”)*2 3 mm (0.12”)*2 3 mm (0.12”)*2 14 mm (0.54”) /

3mm (0.12”) *1*2

Table 1-7. Envelope Margin

Size Left Margin

(min.) Right Margin

(min.) Top Margin

(min.) Bottom Margin

(min.)

#10 3 mm (0.12”) 28 mm (1.10”) 3 mm (0.12”) 14 mm (0.55”)

DL 3 mm (0.12”) 7 mm (0.28”) 3 mm (0.12”) 14 mm (0.55”)

C6 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 14 mm (0.55”)

Table 1-8. Adjust Lever Setting Position

Paper Setting Position Gap

Cut sheet, OHP Sheet, Label,

Postcard Front (0) 0 mm

Envelope Rear (+) +0.9 mm

Printable Area

LM RM

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 19

1.2.8 Ink Cartridge

BLACK INK CARTRIDGE

The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO

1280/1290 are common.

Type: Exclusive Cartridge

Color: Black

Print Capacity: 540 pages/A4

(ISO/IEC 10561 Letter Pattern at 360 dpi)

Ink Life: 2 years from the indicated date of production

Storage Temperature

Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120

hours at 60 oC)

Packed (storage): -30 to 40 oC (within a month at 40 oC)

Installed: -20 oC to 40 oC (within a month at 40 oC)

Dimension: 20.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)

COLOR INK CARTRIDGE

Note some of the color ink specifications for the Stylus PHOTO 890 and Stylus

PHOTO 1280/1290 are different as indicated.

Type: Exclusive Cartridge

Color: Magenta, Cyan, Yellow, Light Cyan,

Light Magenta

Print Capacity:

Stylus PHOTO 890 220 pages / A4 (360 dpi, 5% duty each color)

Stylus PHOTO 1280/1290330 pages / A4 (360 dpi, 5% duty each color)

Ink Life: 2 years from the indicated date of production

Storage Temperature

Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120 hours

at 60 oC)

Packed (storage): -30 to 40 oC (within a month at 40 oC)

Installed: -20 oC to 40 oC (within a month at 40 oC)

Dimension:

Stylus PHOTO 890 49.1 mm (W) x 66.85 mm (D) x 38.5 mm (H)

Stylus PHOTO 1280/129049.1 mm (W) x 84.05 mm (D) x 41.8mm (H)

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 20

1.2.9 Electric Specification

120V VERSION

Rated Voltage: AC120V

Input Voltage Range: AC99∼132V

Rated Frequency Range: 50∼ 60Hz

Input Frequency Range: 49.5∼ 60.5Hz

Rated Current: 0.4A(Max0.7A)

Power Consumption: Approx. 15W (ISO10561 Letter Pattern)

Approx. 3W in standby mode

Energy Star compliant

Insulation Resistance: 10M ohms min.

(between AC line and chassis, DC 500V)

Dielectric Strength: AC 1000V rms. 1 minute or

AC 1200V rms. 1 second

(between AC line and chassis)

220 ∼ 240V VERSION

Rated Voltage: AC220V∼240V

Input Voltage Range: AC198∼264V

Rated Frequency Range: 50∼60Hz

Input Frequency Range: 49.5∼60.5Hz

Rated Current: 0.2 A(Max0.35A)

Power Consumption: Approx. 15W (ISO10561 Letter Pattern)

Approx. 3W in standby mode

Energy Star compliant

Insulation Resistance: 10M ohms min.

(between AC line and chassis, DC 500V)

Dielectric Strength: AC 1500V rms. 1 minute

(between AC line and chassis)

1.2.10 Reliability

Total Print Volume Black: 25,000 pages (A4, Letter)

Color: 10,000 pages (A4, Letter)

Printhead Life: 3000 million dots/nozzle

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Basic Specifications 21

1.2.11 Environmental Condition

TEMPERATURE

Operating: 10 to 35°C*2

Non-Operating: -20 to 60°C*1

Within 1 month at 40°C /120 hours at 60°C

*1: In a shipment container.

*2: Refer to Figure 1-6 "Temperature/Humidity Range" for condition.

HUMIDITY

Operating: 20 to 80% RH (without condensation)*2

Not-Operating: 5 to 85% RH (without condensation)*1

Figure 1-6. Temperature/Humidity Range

*1: In a shipment container.

*2: Refer to Figure 1-6 "Temperature/Humidity Range" for condition.

RESISTANCE TO SHOCK

Operating: 1G, within 1 ms, X, Y, Z directions

Non-operating: 2G, within 2 ms, X, Y, Z directions*1

*1: In a shipment container.

RESISTANCE TO VIBRATION

Operating: 0.15G

Non-operating: 0.50G*1

*1: In a shipment container.

10 27 30 35 40

Temperature (°C)

Humidity (%)

C A U T I O N When storing the printer, make sure the printhead is capped.

When transporting the printer, ensure the ink cartridges are

installed in the printer and the printhead is capped.

If the printer power is off with the printhead left uncapped, turn

the printer on with the ink cartridges installed, cap the

printhead, and turn the printer off.

Ink freezes at below -4°C. It will be usable again after keeping it

for about three hours at 25°C.

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 22

1.3 Interface

The EPSON Stylus PHOTO 890/1280/1290 provides USB and parallel interfaces as

standard.

1.3.1 Parallel Interface (Forward Channel)

Transmission Mode: 8 bit parallel, IEEE-1284 compatibility mode

Synchronization: By STROBE pulse

Handshaking: By BUSY and ACKNLG signal

Signal Level: TTL compatible level

Adaptable Connector: 57-30360 (amphenol) or equivalent

Figure 1-7. Data Transmission Timing

* Rise and fall time of every output signal.

** Rise and fall time of every input signal.

*** Typical timing for tack is shown on the following page.

DATA

data byte n data byte n+1

-STROBE

BUSY

-ACKNLG

thold

tsetup tstb

tready tbusy

treply tack tnbusy

tnext

Table 1-9. Parameters

Parameter Minimum Maximum

tsetup 500ns -

thold 500ns -

tstb 500ns -

tready 0 -

tbusy - 500ns

tt-out* - 120ns

tt-in** - 200ns

treply 0 -

tack 500ns 10us

tnbusy 0 -

tnext 0 -

Table 1-10. Typical Time of Tack

Parallel I/F Mode Typical Time of tack

High Speed 0.5us

Normal Speed 2us

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 23

* A low logic level on the Logic H signal is 2.0V or less when the printer is turned off,

and this signal is equal to or exceeding 3.0V when the printer is turned on. The

receiver shall provide an impedance equivalent to 7.5K ohm to ground.

Table 1-11.

Signal Level: TTL Compatible (IEEE-1284 level 1 device)

Parameter Minimum Maximum Condition

VOH* - 5.5V

VOL* -0.5V -

IOH* - 0.32mA VOH = 2.4V

IOL* -12mA VOL = 0.4V

CO - 50pF

VIH -2.0V

VIL 0.8V -

IIH -0.32mA VIH = 2.0V

IIL - 12mA VIL = 0.8V

CI - 50pF

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 24

NOTE: In/Out refers to the direction of signal flow seen from the printer side.

Table 1-12. Connector Pin Assignment and Signals

Pin No. Signal Name Return

GND Pin In/Out Functional Description

1 -STROBE 19 In The strobe pulse. Read-in of data is performed at the falling edge of this pulse.

2-9 DATA0-DATA7 20-27 In The DATA0 through DATA7 signals represent data bits 0 to 7, respectively.

Each signal is at high level when data is logical 1 and low level when data is logical 0.

10 -ACKNLG 28 Out This signal is a negative pulse indicating that the printer can accept data again.

11 BUSY 29 Out A high signal indicates that the printer cannot receive data.

12 PE 28 Out A high signal indicates paper-out error.

13 SLCT 28 Out Always at high level when the printer is turned on.

14 -AFXT 30 In Not used.

17 Chassis GND - - Chassis GND

18 Logic H - Out Pulled up to +5V via 3.9K ohm resister.

31 -INIT 30 In The falling edge of a negative pulse or a low signal on this line causes the printer to initialize. Minimum

50us pulse is necessary.

32 -ERROR 29 Out A low signal indicates printer error condition.

35 +5 -Out Pulled up to +5V via 3.3K ohm resister.

36 -SLIN 30 In Not used.

16,33

19-30 GND - - Signal GND

15,34 NC - - Not connected.

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 25

1.3.2 Parallel Interface (Reserve Channel)

Transmission Mode: IEEE-1284 nibble mode

Adaptable Connector See forward channel.

Synchronization: Refer to the IEEE-1284 specification

Handshaking: Refer to the IEEE-1284 specification

Data Trans. Timing: Refer to the IEEE-1284 specification

Signal Level: IEEE-1284 level 1 device (See forward channel.)

NOTE: In/Out refers to the direction of signal flow from the printer’s point of view.

Extensibility Request:

The printer responds affirmatively when the extensibility request values are 00H

or 04H, which means:

00H: Request Nibble Mode Reverse Channel Transfer.

04H: Request Device ID;

Return Data Using Nibble Mode Rev Channel Transfer.

Table 1-13. Connector Pin Assignment and Signals

Pin No. Signal Name Return

GND Pin In/Out Functional Description

1 HostClk 19 In Host clock signal.

2-9 DATA0-DATA7 20-27 In

The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each signal is

at high level when data is logical 1 and low level when data is logical 0. These signals are

used to transfer the 1284 extensibility request values to the printer.

10 PtrClk 28 Out Printer clock signal.

11 PtrBusy / DataBit-3,7 29 Out Printer busy signal and reverse channel transfer data bit 3 or 7.

12 AckDataReq / DataBit-2,6 28 Out Acknowledge data request signal and reverse channel transfer data bit 2 or 6.

13 Xflag / DataBit-1,5 28 Out X-flag signal and reverse channel transfer data bit 1 or 5.

14 HostBusy 30 In Host busy signal.

31 -INIT 30 In Not used.

32 -DataAvail / DataBit-0,4 29 Out Data available signal and reverse channel transfer data bit 0 or 4.

36 1284-Active 30 In 1284 active signal.

18 Logic-H - Out Pulled up to +5V via 3.9K ohm resistor.

35 +5V -Out Pulled up to +5V via 3.3K ohm resistor.

17 Chassis GND - - Chassis GND

16,33, 19-30 GND - - Signal GND

15,34 NC - - Not connected

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 26

Device ID:

The printer sends the following device ID string when requested.

When IEEE1284.4 is enabled,

<00H><5AH>*1/ <00H><5CH>*2

MFG: EPSON

CMD: ESCPL2,BDC,D4

MDL: Stylus[SP]Photo[SP]890

/Stylus[SP]Photo[SP]1290

CLS: PRINTER

DES: EPSONStylus[SP]Photo[SP]890

/EPSONStylus[SP]Photo[SP]1290

When IEEE1284.4 is enabled,

<00H><57H>*1/ <00H> <59H>*2

MFG: EPSON

CMD: ESCPL2,BDC,D4

MDL: Stylus[SP]Photo[SP]890

/Stylus[SP]Photo[SP]1290

CLS: PRINTER

DES: EPSONStylus[SP]Photo[SP]890

/EPSONStylus[SP]Photo[SP]1290

*1: Stylus PHOTO 890 only

*2: Stylus PHOTO 1280/1290 only

NOTE 1:[00H] denotes a hexadecimal value of zero.

NOTE 2:MDL value depends on the EEPROM setting.

NOTE 3:CMD value depends on the IEEE1284.4 setting.

1.3.3 USB Interface

Standard: Based on:

“Universal Serial Bus Specifications Rev. 1.1”

“Universal Serial Bus Device Class Definition for

Printing Devices Version 1.1”

Bit rate: 12Mbps (Full Speed Device)

Data encoding: NRZI

Adaptable connector: USB Series B

Recommended cable length:2 meters

Figure 1-8. USB Pin Assignment

Table 1-14. Connector Pin Assignment and Signals

Pin No. Signal Name I/O Function Description

1VCC -

Cable power. Max. power

consumption is 2mA.

2-Data Bi-D Data

3+DataBi-D

Data, pull up to +3.3 V via 1.5K

ohm resistor.

4Ground -Cable ground

Pin #1

Pin #3

Pin #2

Pin #4

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Interface 27

1.3.4 Prevention of Data Transfer Time-out

Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy

state for dozens of seconds continuously. To prevent this kind of time-out, the printer

receives data very slowly, several bytes per minute, even if the printer is in the busy

state. The slowdown starts when the remaining input buffer becomes several hundreds

of bytes, and the printer finally gets into the busy state continuously when the input

buffer is full.

USB and IEEE1284.4 on the parallel interface do not require such function.

1.3.5 Interface Selection

The printer has two built-in interfaces: the USB and parallel interface.

These interfaces are selected automatically.

Automatic Selection

In this automatic interface selection mode, the printer is initialized to the idle state

while scanning which interface receives data when it is powered on. Then the

interface which received data first is selected. When the host stops data transfer

and the printer is in the stand-by state for seconds, the printer is returned to the idle

state. As long as the host sends data or the printer interface is in the busy state, the

selected interface is let as it is.

Interface State and Interface Selection

When the parallel interface is not selected, the interface gets into the busy state.

When the printer is initialized or returned to the idle state, the parallel interface

gets into the ready state. Note that the interrupt signal such as the -INIT signal on

the parallel interface is not effective while that interface is not selected.

1.3.6 IEEE1284.4 Protocol

The packet protocol described by IEEE1284.4 standard allows a device to carry on

multiple exchanges or conversations which contain data and/or control information

with another device at the same time across a single point-to-point link. The protocol is

not, however, a device control language. It does provide basic transport-level flow

control and multiplexing services. The multiplexed logical channels are independent of

each other and blocking of one has no effect on the others. The protocol operates over

IEEE1284.

Automatic Selection

An initial state is compatible interface and starts IEEE1284.4 communication

when magic strings (1284.4 synchronous commands) are received.

On

An initial state is IEEE1284.4 communication and data that received it by the time

it is able to take synchronization by magic string (1284.4 synchronous commands)

is discarded.

Off

An initial state is compatible interface and never starts IEEE1284.4

communication even if magic strings (1284.4 synchronous commands) are

received.

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Operations 28

1.4 Operations

1.4.1 Buttons

Roll Paper button

Maintenance button

Ink Cartridge replacement button

Power button

1.4.2 Indicators

Power

Lights when the operating switch is “ON” and AC power is supplied.

Error

Lights during the error condition, and blinks during the ink low condition.

Figure 1-9. Control Panel

1.4.3 Panel Functions

*1: Press the button for 3 seconds.

*2: According to the content of 1BH of the EEPROM, one of the following

actions needs to be carried out. (See Table 1-17 on page 29)

*3: Do not mention the information to the users.

Error indicator

Power indicator

Maintenance button

Roll Paper button

Ink Cartridge

replacement

button

Power button

Table 1-15. Panel Functions

Buttons Function

Maintenance

• Loads or ejects paper.

• Returns a carriage to the home position when the

carriage is at the ink cartridge replacement position.

• Starts the head cleaning*1.

• Returns from an error condition.

Roll Paper

• Loads or ejects Roll Paper. (Back Out feed*1)

• Feeds and returns from the Tear-Off operation.

• Returns a carriage to the home position when the

carriage is at the ink cartridge replacement position.

Ink Cartridge Replacement

• Starts the Ink Cartridge change sequence.

Moves the carriage to the carriage change position.

• Returns a carriage to the home position when the

carriage is at the ink cartridge replacement position.

Table 1-16. Power On Panel Functions

Buttons Pressing with Power On Function

Maintenance • Starts status printing*2.

Roll Paper • Changes code pages /select IEEE1284.4 mode for

parallel I/F*3.

Maintenance

Roll Paper

• Enters the special settings mode. (Factory use only).

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Operations 29

*4: Factory default setting.

1.4.4 Special Setting Mode

To enter the special setting mode, press the Maintenance button and the Roll Paper

button while turning on the printer until the Power indicator blinks. While it is blinking

(for 3 seconds), press the specified button to activate the desirable setting mode.

NOTE: The special setting mode is not described in the user’s manual.

*1: Pressing the button for 10 seconds.

EEPROM/Timer IC Reset

The following will be reset when this operation is executed.

Interface selection (04H)

CL Time (68H, 69H)

Power Off timer (6AH, 6BH)

Waste Ink Counter Reset

The following will be reset when this operation is executed.

Ink counter A0 (6CH, 6DH)

Ink counter A80 (6EH, 6FH)

Table 1-17. Content of 1BH of EEPROM

[bit7] [bit6] Actions

00 Prints firmware version, ink counter, selected code

page and nozzle check pattern.

01 Starts the hex-dump mode.

10 Starts the self test mode. Table 1-18. Special Setting Mode

Buttons Functions

Maintenance • Initializes the EEPROM and Timer IC.

Roll Paper*1 • Resets the ink overflow counter (Protection

Counter) in the EEPROM.

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Operations 30

1.4.5 Printer Initialization

EPSON Stylus PHOTO 890/1280/1290 executes initialization by using 3 methods

mentioned below.

1. Hard Initialization

The Hard Unitization will be performed when the printer is turned on or

recognizes the cold reset command. (remote RS command)

The following will be performed during initialization.

Initializes printer mechanism.

Clears input data buffer.

Clears print buffer.

Sets default values.

2. Software Initialization

The ESC@ command also initializes the printer.

The following will be performed during initialization.

Clears print buffer.

Sets default values.

3. Panel Initialization

The Panel Initialization will be performed if the printer is turned off and back on

within 10 seconds, or *INIT signal (negative pulse) is input.

The following will be performed during initialization.

Caps the printer head.

Ejects paper.

Clears input data buffer.

Clears print buffer.

Sets default values.

1.4.6 Initialization Value

When the printer is initialized, it clears the following settings to their initialization

values. However, panel setting values, default setting values, and values set by the

remote command remain as they are.

Top of page Current TOP

Line feed 4.23mm(1/6 inch)

Right margin 80 columns (Stylus PHOTO 890)

127 columns (Stylus PHOTO 1280/1290)

Left margin 1st column

Character pitch 10 cpi

Print mode Text mode (Non graphics mode)

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Dimension 31

1.5 Dimension

EXTERNAL DIMENSION

Stylus PHOTO 890

When stored(mm): 471 (W) x 290 (D) x 175 (H)

For use(mm): 471 (W) x 613 (D) x 302(H)

Stylus PHOTO 1280/1290

When stored(mm): 609(W) x 311(D) x 175 mm (H)

For use(mm): 609(W) x 766(D) x 414mm (H)

WEIGHT

Stylus PHOTO 890: 6.0 kg

Stylus PHOTO 1280/1290:8.4 kg

Figure 1-10. Stylus PHOTO 890 in Use

Figure 1-11. Stylus PHOTO 1280/1290 in Use

EPSON Stylus PHOTO 890/1280/1290 Revision C

PRODUCT DESCRIPTIONS Dimension 32

CHAPTER

OPERATING PRINCIPLES

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 34

2.1 Overview

This section describes the operating principles of the printer mechanism and electrical

circuit boards. The major components of the EPSON Stylus Photo 890/1280/1290 are:



Printer mechanism: Stylus Photo 890: M4T12

Stylus Photo 1290: M4S61



Main board:

Stylus Photo 890 : C393MAIN-C/C393MAIN-B

Stylus Photo 1290: C393MAIN/C393MAIN-B



Power supply board: C378PSB/PSE Board

PRINTER MECHANISM

Unlike other EPSON ink jet printers, the

EPSON Stylus Photo 890/1280/1290

uses a DC

motor as power source. The DC motor enables the printer to lower noise during

printing. Table 2-1 shows various motor types used in the printer and their applications.

Table 2-1. Motor Types and Corresponding Applications

The basic structure of the printer mechanism is mostly common to the Stylus COLOR

400, except that the Stylus Photo 890/1290 uses a Pump/ASF motor. With this motor

equipped, the paper loading mechanism and the pumping mechanisms are

independently driven, which allows the printer to offer higher throughput.

Figure 2-1 shows the printer mechanism block diagram for the Stylus Photo 890/1290.

Figure 2-1. Printer Mechanism Block Diagram

Table 2-2.

Motor Name Type Application / Feature

CR motor DC motor with

brush

Drives the carriage making little noise. Works with

a linear scale to monitor motor’s operating

condition.

PF motor DC motor with

brush

Supplies power to drive paper feeding rollers used to

send paper at specified speeds and load/eject paper.

To monitor paper feeding pitch, a loop scale is

attached beside the high-precision gear.

Pump/ASF

motor

4-Phase / 48-pole

stepping motor

Sends drive for pump operation and paper feeding

from ASF. Since this is a stepping motor, it has no

scales or photo sensors that are used to monitor

motor’s operating condition.

Intermittent Gear

PF Motor Pinion

PF Motor

Flashing Window

(at 80th or 136th column)

Photo Interrupter (Encoder)

Notched Roller

Rotary Encoder

PF Drive Gear (high precision)

ASF Sensor

Detector Wheel

LD Roller Shaft

Loading Rollers

PE Sensor

Pump/ASF Motor

CR Motor

PG Lever

Liner Scale

PF Roller

CR Guide Shaft

Pump Unit

Cap Unit

(without a valve)

Timing Belt

Printhead

Carriage Unit

ASF/Pump Disengage

Gear Train

Photo Interrupter (Encoder)

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 35

2.1.1 Printhead Mechanism

The printhead mechanism operating principles of the Stylus Photo 890/1290 are

basically the same as for the previous EPSON ink jet printers. This printer, however,

employs a newly developed ink and improved printhead driving method to provide a

higher print quality and faster printing speed than ever. Also, an IC called CSIC that

stores ink-life data is attached to each ink cartridge. With this IC, ink life of each

cartridge can be individually monitored. Note, like for other models, a head voltage

must be written with a PC.

The printhead mechanism consists of ink cartridges and printheads. Each printhead is

composed of PZT (Piezo Electric Element), nozzle surface, ink supply needle, nozzle

selection circuit board, cartridge sensor, CSIC, and CSIC connection circuit. Figure 2-2

shows its component layout.

Figure 2-2. Printhead Mechanism

Ink Cartridge

An ink cartridge stores ink to be supplied to the printhead.

CSIC:

CSIC is a non-volatile memory EEPROM attached to each black and color ink

cartridge. It keeps the following information:

1) Ink remaining level

2) Number of cleanings performed

3) Number of installation of the ink cartridge

4) Accumulated installation time of the cartridge

5) Model name of the printer in use

6) Ink cartridge production information

Printhead

PZT

Driven by the print signal from the control circuit board, it ejects ink from the

nozzle plate.

Nozzle plate

Ink pressured by the PZT is ejected from this plate.

Ink supply needle

Connects the ink cartridge and printhead to run ink to the printhead.

CSIC connection circuit

Connects the control circuit board and CSIC attached on the ink cartridge.

One end of the harness is connected to the control board together with the

printhead cable.

Nozzle selection circuit board

This circuit, controlled by ASIC on the control circuit board, selects nozzles

to be driven for printing. On the other hand, head drive voltage is produced on

the controller circuit side.

Nozzle Selector

Circuit Board

Ink Supply Needle

CSIC

PZT

Nozzle Plate

CSIC Connection

Circuit

Ink Cartridge

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 36

2.1.2 Carriage Mechanism

The carriage mechanism of the Stylus Photo 890/1290 is composed of the carriage

motor (CR motor), carriage guide shaft, platen gap adjustment/parallelism adjustment

mechanism, carriage lock mechanism, and so on.

2.1.2.1 Carriage Motor (CR Motor)

The carriage mechanism of this printer is mostly the same as for other ink jet printers’

except it uses a DC motor as power source. See the table below for the carriage motor

specifications.

Table 2-3. Carriage Motor Specifications

In previous ink jet printers, since a stepping motor is used as a CR motor, the CR motor

controls the carriage position under the open loop system. This printer, however,

controls carriage speed and position with the closed loop system enabled by a DC

motor and encoder. This system, also used in the Stylus COLOR 900, is applied to

maintain a constant print quality. The CR motor also produces the print timing signal

(PTS signal) used for an accurate ink ejection timing. (Refer to Section 2.2.2.3 for

further information on the CR motor control circuit.)

For printing, the CR motor moves the carriage unit in the printing area along the CR

guide shaft.

Figure 2-3. Carriage Mechanism (Top view)

Table 2-4.

Items Specifications

Type DC Motor with brush

Drive Voltage +42 V +/- 5% (Applied to the driver)

Coil resistance 29.2 ohms +/- 25%

Inductance 30.0 mH +/- 25%

Drive Method Constant Current Chopping

Driver IC LB1947

Op03

Adjust Lever

CR Motor

Photo Coupler

Carriage Unit

Linear Encoder

Platen Surface

Parallelism Adjustment

Bushing

Carriage Guide

Shaft

Eccentric Shaft

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 37

2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism

The PG adjust lever is attached to the left end of the carriage guide shaft. When the

carriage guide shaft, which has an eccentricity, rotates as the adjustment lever moves, it

narrows or widens the distance (=PG: from 1.2 mm to 2.1 mm). This mechanism

enables the user to print with a correct PG according to print result or other conditions

such as paper curl.

Also, the parallelism adjustment bushings are attached to the right and left ends of the

carriage guide shaft. They are used to set the carriage guide shaft parallel with a platen.

Table 2-5. Platen Gap Adjust Lever Setting

2.1.2.3 Carriage Home Position (HP) Detection

Unlike previous Epson ink jet printers, the carriage home position is detected with the

drive current from the CR motor and speed/position signal from the linear encoder.

2.1.3 Paper Feeding Mechanism

The paper feeding mechanism transports paper loaded from ASF using the PF rollers

and paper eject rollers. A new type of DC motor is used as the PF motor. See the table

below for the PF motor specifications.

Table 2-7. PF Motor Specifications

Stepping motor that is used in other printers as the PF motor controls paper feed by the

open loop system. On the other hand, this printer controls paper feeding mechanism

with the closed loop system by employing the DC motor and rotary encoder for more

accurate paper feeding. Therefore, a rotary encoder attached to the left end of the PR

roller shaft controls paper feed amount. For detailed information, see Section "PF

motor driver circuit".

Drive from the PF motor is sent to the PF rollers and paper eject rollers as described

below.

Drive transmission to the PF rollers:

PF motor pinion gear → Spur gear (76) → PF rollers

Drive transmission to the eject rollers:

PF motor pinion gear → Spur gear (76) → Combination gear (13.5, 308) → Spur

gear (28) → Paper eject rollers

Table 2-6.

Lever Position PG adjustment value

Front (0) 0 mm (=PG is 1.2 mm)

Rear (+) + 0.9 mm (=PG is 2.1 mm)

Table 2-8.

Item Description

Motor type DC Motor with Brush

Drive voltage +42V +/- 5% (Applied to the driver)

Coil Resistance 29.2ohm +/- 25%

Inductance 30.0mH +/- 25%

Control method Constant current chopping drive

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 38

Figure 2-4 gives the paper feeding mechanism block diagram, showing the parts along

the PF motor drive transmission paths.

Figure 2-4. Paper Feeding Mechanism

The printer loads paper at the ASF, which is detected by the PE sensor attached to the

right side of the top frame, and advances it to send the paper’s leading edge to the

halfway of the front paper guide. Then, to correct paper deflection, the printer feeds the

paper back specified steps toward ASF, and advances the paper again toward the front

paper guide and stops it at the specified TOF (Top Of Form) position. Once printing

starts, the paper is fed by the PF rollers and sub rollers. For printing or transporting the

tailing edge area (14 mm), a notched roller and drive from the paper eject roller are

used. Like the Stylus Photo 870/1270, this printer also provides this extra printable

range of 14 mm from the bottom edge, excluding the bottom margin of 3mm, by

changing the position of the star wheel gear; it has been shifted by 5° from the top of

the eject roller toward the front paper guide. Due to this change, the tailing edge of

paper is suppressed, and the printer can advance paper steadily. See Figure 2-5 next

page that shows how paper is transported and parts involved.

Figure 2-5. Paper Transportation

PF Motor Pinion Gear

Paper Eject Roller

Front Paper Guide

Combination Gear

(13.5, 308)

PF Roller

Paper Eject Roller

Spur Gear (76)

PF Motor

[Previous Models]

Paper

Notched Roller

PrintheadSupport Roller

PF Roller

Paper Eject Roller

Platen Surface

5°

Steady Feeding

Bottom Margin (3 mm)

[Stylus Photo 890/1290]

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 39

2.1.3.1 CR Lock Mechanism

The carriage lock mechanism prevents the carriage from being left uncapped for a long

time, which is usually caused by vibration during printer transportation, user’s

mishandling of the printer, and so on. If the carriage unit is left uncapped for a long

time, ink on the printhead surface dries gradually and, eventually, ink can not flow to

nozzles. In addition to that, there is a possibility that the nozzles clogged with dried ink

can not be recovered by a head cleaning. To avoid this problem, the printer locks the

carriage unit under the circumstances below:

After Power-Off

If the printer power is turned off in the middle of printing or other operations, the

printer completes the initialization sequence and then performs a carriage lock.

After Power-On

When the printer is turned on, the printer automatically begins a power-on cleaning

and then performs a carriage lock.

[Power-on cleaning]

The printer runs a power-on cleaning automatically when its power is turned on. Since

the timer IC on the main control circuit board is powered by a lithium battery that is

also mounted on the board, it keeps counting the printer’s power off time. According to

the power of time counted, the printer selects the cleaning level to perform.

After paper ejection

If the printer does not receive any print data after Load/Eject button is pressed, it

performs a carriage lock and enters a standby status. But if paper is fed into the printer,

the printer does not perform it.

Figure 2-6. CR Lock Mechanism

Top View

Bushing

Paper Eject Roller

CR Lock Lever

Middle Frame

Right Side View

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 40

2.1.4 Paper Loading Mechanism

The paper loading mechanism loads paper at the ASF unit and feeds paper to the PF

rollers. The ASF unit is the same as in previous models. A 4-phase 48-pole PM type

stepping motor is used as the ASF/Pump motor to drive ASF. Drive sent from this

motor is transmitted to the ASF side and Pump side via the disengage mechanism (DE

mechanism). See Figure for the ASF/Pump motor specifications.

The rotation directions in order to drive ASF unit/ Pump mechanism are as shown

below.

*1: Refer to “Drive Transmission to the ASF Unit” on page -40

*2: CW refers to clockwise from ASF/Pump Motor Pinion side

*3: CCW refers to counterclockwise from ASF/Pump Motor Pinion side

Drive from the ASF/Pump motor is sent to the ASF unit by the switching operation of

the carriage unit and the DE mechanism described in the following section.

2.1.4.1 Drive Transmission to the ASF Unit

1) The CR unit moves to the right end of the CR shaft, which then pushes the DE

lock lever to the right end.

2) The ASF/Pump motor rotates counterclockwise specified steps (viewed from the

motor pinion gear side).

3) With the ASF-Pump motor’s rotation of step 2), the planetary gear set in the DE

unit shifts toward the combination gear (12, 22.4).

4) The carriage unit moves from the right end of the CR shaft specified steps, which

causes the DE lock lever to fix the planetary gear unit.

5) Torque from the ASF/Pump motor is transmitted as described below.

Motor pinion gear → Planetary gear (15.2) → Combination gear (12, 22.4) →

Combination gear (14, 28) → Spur gear (32) in ASF

Figure 2-7 shows the disengage mechanism and its parts.

Figure 2-7. Disengage Mechanism

The ASF unit loads paper by the torque sent from the ASF/Pump motor via the DE

mechanism as described in the following section.

Table 2-9. ASF/Pump Motor Specifications

Items Description

Motor type 4 Phase/ 48-pole /PM type pulse motor

Drive method Bipolar constant current drive

Drive voltage +42V +/- 5% (applied to the driver)

Coil Resistance 10.4 ohm +/- 10%

Inductance 15.0 ohm +/- 10%

Table 2-10. Directions of ASF Unit/Pump Mechanism Rotation

Rotation Direction ASF Paper Loading Roller

Rotation Direction Pump Rotation Direction*1

CW*2 Reverse Rotation Normal Rotation

CCW*3 Normal Rotation Reverse Rotation

Combination Gear

14, 28 Combination Gear 12, 22.4

Planetary Gear 15.2 Unit

DE Lock Lever

Combination Gear 17.19, 25.6

ASF-Pump Motor Pinion Gear

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 41

2.1.4.2 Paper Loading Operation

Multiple paper loading prevention mechanism is included in the ASF unit to ensure

steady paper loading. To prevent any paper from falling from the paper set position

into the paper path, the paper return lever pushes paper that may have fallen off back

onto the hopper. After this motion is completed, the LD roller starts loading paper. The

paper loading mechanism, including the multiple paper loading prevention mechanism,

is described in the following steps.

1) When the printer power is turned on, the ASF/Pump motor rotates

counterclockwise to detect ASF home position. Then it rotates clockwise specified

steps to set the LD roller and paper return lever in their standby status. (See

“Standby State” in Figure 2-1.)

2) When the paper loading signal is sent from the PC and the Load/Eject button is

pressed, the ASF/Pump motor turns counterclockwise to let the LD roller start

loading paper. (See “Paper Pick Up State” in Figure 2-1.)

3) When the paper is transported to the PF roller, the LD roller stops where it loses

friction. (See “PF Roller Paper Feed State” in Figure 2-1.)

4) When the next print signal is sent and Load/Eject button is pressed*, the ASF/

Pump motor rotates clockwise specified steps to set the LD roller and the paper

return lever in standby status. (See “Standby State” in Figure 2-1.)

* If the printer does not receive any print signal for TBD seconds in step 4, the LD

roller and the paper return lever automatically return to the standby state.

Flowchart 2-1. Multiple Paper Loading Prevention Mechanism

PF Roller Paper

Feeding State

Paper Load State

LD Roller Cam

Hopper

Hopper Spring Pinch Roller

Pad

Pad Spring

Paper Return

Lever

Standby State

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 42

2.1.4.3 Pump Mechanism

The pump mechanism absorbs ink from the printhead and the cap assembly. The wiper

for head cleaning is included in the cap assembly.

The pump mechanism is driven by the ASF/Pump motor, a 4phase 48-pole PM type

stepping motor. See Table for the ASF/Pump motor specifications. When the torque

from the ASF/Pump motor is switched to the pump unit side, the pump mechanism acts

differently according to the directions of the ASF/Pump motor rotation, as shown in the

table below.

Figure 2-8. Torque to the Pump Mechanism

Torque transmission to the pump unit

The torque from the ASF/Pump motor is transmitted to the pump mechanism as

described below:

1) The CR unit moves to the right end of the CR shaft, which then pushes the DE

lock lever to the right end.

2) The ASF-Pump motor rotates clockwise (viewed from the motor pinion gear

side) specified steps.

3) With the rotation of step 2), the planetary gear set in the DE unit moves toward

the combination gear (17.19, 25.6).

4) The CR unit moves specified steps from the right end of the CR shaft to the

left. With this motion, the DE lock lever fixes the planetary gear set.

5) Torque from the ASF/Pump motor is transmitted as described below.

Motor pinion gear → Planetary gear (15.2) → Combination gear (17.19, 25.6)

→ Tension belt → Pump unit gear → Pump unit

DE pump mechanism and operating principle are as shown in the figure below.

Figure 2-9. Pump Operating Principle

1. When the pump unit rotates CCW from ASP/Pump motor side, rollers rotates

compressing a tube, and the ink in the tube is pressed from the capping unit down

to waste ink pads.

2) When the pump unit rotates CW, the rollers stop compressing the tube, and the ink

is not pressed to the waste in pack.

Table 2-11. ASF/Pump Motor Functions

Directions Corresponding Functions

Counterclockwise • Absorbs ink.

•Sets the wiper.

Clockwise • Releases tube.

• Resets the wiper.

Combination Gear 12, 22.4

Planetary Gear 15.2

DE Lock Lever

Tension Belt

Pump Unit Gear

Combination Gear 17.19, 25.6

ASF/Pump Motor Pinion Gear

Combination Gear 14, 28

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Overview 43

2.1.4.4 Capping Mechanism

The capping mechanism, which is driven by the pump unit, caps the printhead closely

to maintain air tightness inside the cap. This operation is required to vacuum ink from

the ink cartridges, printhead, and cap. Also, to moisten the inside of the cap while the

printer power is off, this mechanism works to keep the cap and the printhead surface in

a tight contact. This function prevents ink from clogging while the printer is not in use.

The capping mechanism of this printer is a newly designed valveless capping

mechanism. So, unlike previous printers, it does not integrates an air valve. The air

valve is usually equipped to remove bubbles created inside the cap by releasing the

negative pressure. However, due to change in the ink sequence, the new valveless

capping mechanism enables the printer to maintain the initial ink charge and cleaning

effects at the same level as before. Figure 2-10 outlines the valveless capping

mechanism.

Figure 2-10. Valveless Capping Mechanism

Negative

pressure is

released here. Ink Ejection

Hole

Valve

Released state

Closed state

Ink Ejection

Hole

There is no air valve

assembled.

Stylus Photo 890/1290

Previous Models

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 44

2.2 Electrical Circuit Operating Principles

The electric circuit of the Stylus Photo 890/1290 consists of the following:



Control circuit board: C393MAIN/C393MAIN-B/C393MAIN-C



Power supply board: C378PSB/PSE



Panel board: C393PNL

Refer to Figure 2-11 for the major connection of the boards and their roles.

Figure 2-11. Electric Circuit of Stylus COLOR 890/1290

2.2.1 C378PSB/PSE Board

The power supply board for the Stylus Photo 890 and Stylus Photo 1290 is C378PSB/

PSE. It uses a RCC switching regulator system, and supplies +42VDC and +5VDC to

the printer mechanism and control board.

2.2.1.1 Electrical Circuit

The table below shows the voltages produced in this circuit and their applications.

Table 2-12. Application of the DC Voltages

NOTE: The 5VDC is only applied to the parts and locations shown in the table above.

The C393MAIN uses 3.3V drive chips for most of the logic-line chips (CPU,

ASIC, ROM, DRAM). For this reason, those chips are not driven by the +5VDC

produced by the but power supply board but the 3.3VDC that is reduced by the

3.3VDC regulator on the C378PSB/PSE.

C378PSB/PSE Power

Supply Board

C378PSB/PSE Power

Supply Board

Power OFF +5VDC +42VDC

C393PNL Panel Board

3.3V Regulator

C393MAIN / C393MAIN-B/

C393MAIN-C Control Board

CR Motor

PF Motor

ASF/Pump Motor

Head Driver Circuit

Sensors

Printer Mechanism

C393MAIN / C393MAIN-B/

C393MAIN-C Control Board

Table 2-13.

Voltage Application

+42VDC ± 2VDC

• CR Motor

• ASF/Pump Motor

• PF Motor

• Head driving power supply

+5VDC ± 0.25VDC

• Logic sensor circuit

•Panel LED

• Nozzle selection circuit (on the printhead)

• I/F control circuit

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 45

Figure 2-12 shows the block diagram for the C378PSB/PSE board.

Figure 2-12. C378PSB/PSE Board Block Diagram

The C378PSB/PSE Board produces the +42VDC and +5VDC using AC power as

described below:

1. Regardless of the power switch’s on/off condition, voltage is always applied to the

primary side of the power supply board from the moment or at the state that AC-

plug is plugged in. F1, a fuse, prevents AC100V from flowing into the circuit. A

power thermistor TH1 also protects the circuit from rush current after power-on.

The filter circuit composed of L1, C1, and C2 prevents high harmonic wave noise

generated in the switching circuit from going out, and eliminates the noise from

outside.

2) The AC voltage is full-wave rectified by the diode bridge DB1 and smoothed by

C11.

3) Switching FET Q1 turns on via starting resistors R18 and R28 that are located on

the AC side to begin switching operation. By arranging the starting resistors on the

AC side, half waves of the AC voltage are only applied, and power used for this

operation is reduced compared with usual serial layout.

4) When the primary side is on, because the diode (D51) on the secondary side is

installed in the reverse direction, energy (current) led by the electromagnetic

induction through the trans (T1) does not flow to the secondary side.

5) When the energy charged in the transformer reaches a saturated state, the voltage

which keeps Q1 on becomes weak gradually. At the point this voltage drops to a

certain level, C13 absorbs the reverse current and Q1 quickly shuts off.

6) When the primary side is turned off, the energy charged in T1 is opened according

to the diode(D51) direction on the secondary side. +42 V DC is output by these

circuit operations and the number of T1 spiral coil.

7) +5VDC is generated out of this +42VDC. Forming reference sawteeth waveforms

with an external RC integrating circuit, IC51 produces stable +5VDC with a

chopping circuit.

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 46

2.2.1.2 Protection Circuits

The C378PSB/PSE board has the various protection circuits to stop voltage outputs if

an abnormal condition relating to the control circuit or the printer mechanism’s duty

occurs.

+42VDC Line Constant Voltage Control Circuit:

The output level of the +42V line is monitored by a detection circuit composed of

numbers of Zener diodes, and the information is fed back to the primary side via

photo coupler PC1. Along with the fed back signal, the switching FET on the

primary side varies the level of the voltage output to the secondary side by

changing its frequency to keep the voltage up.

+42VDC line over current protection circuit:

If the +42 VDC line is over currented, the output voltage level drops drastically.

When the voltage level is 36V or lower, zener diode ZD90 detects that condition

and sends information to the primary side via photo coupler PC1. In the primary

circuit, then, switching operation stops to protect the electrical circuits and printer

mechanism. To reset the circuit, turn the printer off and back on.

+42VDC line over voltage protection circuit:

If the voltage level of the +42VDC line exceeds 59V, zener diodes D52 and ZD87

detect it and feed back the information to the primary side via photo coupler PC1.

The switching operation in the primary side then stops to protect the electrical

circuits and printer mechanism.

+5V line constant voltage/constant current control circuit:

Both +5V line output voltage and +5V line output current are monitored by

chopper IC (IC51). Detected information is input to the IC’s internal comparator

and stabilizing circuit. When the IC detects abnormally high current level, it stops

outputting voltage. The circuit recovers automatically.

+5V line over voltage protection circuit:

If the +5VDC output level exceeds 12V, zener diode ZD53 detects that condition

and feeds back the information to the primary side via photo coupler PC1. The

switching operation in the primary side then stops to protect the electrical circuits

and printer mechanism.

2.2.1.3 Power Supply Control Function

Since this printer has the power switch in the secondary circuit, even if its power is

turned off through the operation panel, it can continue to supply voltage to the +5VDC

line and +42VDC line for about 30 seconds. This extra time allows the printer to

complete the following operations:

If the printer is in a printing motion and the CR unit is out of its home position, the

printer stops printing, returns the CR unit to the home position, and performs CR

lock operation. Then the printer power shuts down.

If the printer is not printing but paper loaded at ASF remains in the printer, the

printer ejects the paper before the printer power shuts down.

2.2.1.4 Energy Save Mode

The power supply circuit enters the energy save mode by the signal ESAVE sent from

the control circuit. One the circuit is in this mode, it maintains the +42V line level in a

range from +20V to +23V.

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 47

2.2.2 C393MAIN Board Circuit Operation Principles

The C393MAIN board includes the following:

Logic circuit (CPU, ASIC, DRAM, EEPROM, and so on)

Various motor control/driver circuits (CR motor, PF motor, and ASF/Pump

motor)

Head control/driver circuits

Interface circuit (parallel I/F, USB I/F)

Sensor circuit

Timer circuit

Reset circuit

The C393MAIN/C393MAIN-B/C393MAIN-C board is mainly different from other

main boards in the following points.

Use of 3.3V drive logic chips

IC21, the 3.3 V regulator IC on the C393MAIN, produces 3.3 V by pressuring

down the 5.5 VDC generated on the C378PSB/PSE board to drive several chips.

These chips are used to reduce power used to drive the logic circuit. See the table

below that separately shows the chips driven by the +5V and +3V.

Table 2-14. 3.3V Drive Chips & 5.5V Drive Chips

There are three kinds of main board installed on EPSON Stylus Photo 890/1280/1290.

Stylus Photo 890 is equipped with either C393MAIN-B or C393MAIN-C while Stylus

Photo 1290 is equipped with either C393MAIN or C393MAIN-B. Block diagram of

each main board are shown in the following figures below.

Figure 2-13. Block Diagram for the C393MAIN Board

(For Stylus Photo 1290 only)

Table 2-15.

+5V 3.3V

Sensors

USB I/F Circuit

(Except high speed)

PNL Board

CPU

ASIC

P-ROM

D-RAM

RTC/Reset/EEPROM

USB I/F Circuit

(During high speed)

CR1

Timer &

Reset IC

(IC4)

Head

CR Encoder senser

IC4

IC7 E0BA13KA

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 48

Figure 2-14. Block Diagram for the C393MAIN-B Board

(For Stylus Photo 890/1290) Figure 2-15. Block Diagram for the C393MAIN-C Board

(For Stylus Photo 890 only)

CR1

Timer &

Reset IC

(IC4)

Head

CR Encoder senser

IC4

IC7

E0BA13KA

CR1

Timer &

Reset IC

(IC4)

Head

CR Encoder senser

IC4

IC7 E0BA13KA

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 49

Table 2-16 shows the major ICs on the C393MAIN Board and their functions.

Table 2-16. Major Element on C393MAIN

IC Location Functions

CPU (HD6412670)

(C393MAIN/

C393MAIN-C)

IC18

A 144-pin QFP package. Operates at 24.0MHz. Power supply voltage is

3.3V.

• Sets the current value for the ASF/Pump motor.

• Measures the printhead temperature.

• Several interrupting functions

• Outputs the system clock signal.

ASIC (E05B87**)

(C393MAIN/

C393MAIN-C) IC19

A 240-pin QFP package. Operates at 48.0MHz/24.0MHz/28.0MHz. Power

supply voltage is 3.3V.

• Controls interfaces.

• Controls specified motors.

• Controls the printhead drive waveform circuit.

• Transfers serial data to the printhead.

• Controls the ASF/Pump motor

• Receives panel control signals and sensor signals

•EEPROM

• Controls detection of the signals output from the encoder.

ASIC

(E01A20CA**) IC19 • CPU and ASIC are built in in the IC.

PROM IC2 8/16Mbit

• Stores the firmware or firmware +CG

DRAM IC5 A 16Mbit DRAM. Power supply voltage is 3.3V.

• Serves as specified buffers and work area

RTC IC

RTC9822** IC4 • Resets the +5V/+24 VDC line circuits.

• Serves as the timer powered by a lithium battery.

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 50

2.2.2.1 Printhead Driver Circuit

The printhead driver circuit includes:

Common driver IC10 (E09A14RA)/IC11 (E09A15KA) directly attached to

the C393MAIN board.

Nozzle selector IC (IR2C95F or SED6125T0A) on the head board.

The common driver generates reference drive waveforms according to the output

signals from ASIC on the C393MAIN board. The reference drive waveforms are

amplified by the transistors Q2 and Q3 and then transferred to the nozzle selector IC on

the head board. Print data is converted to serial data by the ASIC and then also sent to

the nozzle selector IC on the head board. Based on the serial data, the nozzle selector

IC determines the nozzles to be actuated. The selected nozzles (PZT) are driven

according to the drive waveforms produced by the common driver. See Figure 2-16 for

the printhead driver circuit block diagram.

Figure 2-16. Printhead Driver Circuit

Head common driver circuit

The head common driver IC10 (E09A14RA)/IC11 (E09A15KA) generates

reference head drive waveforms according to the output of the following 9 signal

lines: A0-A4, CLK1, CLK2, RST, FLOOR, and DATA.

By the DATA signal output from the IC19 ASIC (E01A20CA**), the original data

for the head drive waveform is written in the memory in the IC10/IC11. Addresses

for the written data are determined by the A0 - A4 signals, and, of among, data

used to determine the waveform angles is selected. Then, setting the selected data,

producing trapezoid waveform value, and canceling the data are performed by the

rising edges of the CLK1 and CLK2 signals.

Head nozzle selector circuit

Print data is converted into serial data by the ASIC (E01A20CA**). Then the

converted data is allocated to the six rows, the number of the head nozzle rows, to

be transferred to the nozzle selector IR2C95F (Sharp) or SED6125T0A (EPSON)

through the six signal lines (HS01 to HS06). Data transmission from IC19 ASIC

(E01A20CA**) to the nozzle selector synchronizes with the LAT signal and SCK

clock signal. Referring to the transferred data, The nozzle selector IC selects the

nozzles to be activated, and the PZTs of the activated nozzles are driven by the

drive waveforms output from the head common driver.

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 51

2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit

RTC9822**includes built-in RTC and EEPROM and functions as a reset. The RTC

part has an electric two-layer condenser for backup. The RTC/Reset/EEPROM circuits

are attached on the C393MAIN board to monitor two voltages: +5V for the logic line

and +42V for the drive line. When each circuit detects abnormality on the

corresponding line, it resets CPU and ASIC to prevent the printer from operating

abnormally.

IC4 RTC9822** is attached on the main board as a RTC/Reset/ EEPROM circuit IC.

EEPROM part backups default setting value and each parameter. IC4

RTC9822**monitors +3.3, +5V, and +45 lines but can reset them independently. See

Figure 2-17 for the block diagram for the reset circuits.

Figure 2-17. RTC/Reset/EEPROM Circuit Block Diagram

+3.3V Line Reset Circuit

The VDD port of IC4 reset IC monitors the +5V line. When the IC detects an

abnormal voltage level (2.5 V or lower), it outputs a reset signal from the RST port

to CPU and ASIC.

+5V Line Reset Circuit

The VDD port of IC4 reset IC monitors the +5V line. When the IC detects an

abnormal voltage level (4.2 V or lower), it outputs a reset signal from the RST port

to CPU and ASIC.

+42V line reset circuit

The VIN port of the IC5 reset IC monitors the +45V line. When the IC detects an

abnormal voltage level (36V or lower), it outputs a reset signal from the VDT port

to CPU and ASIC.

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 52

2.2.2.3 Motor Driver Circuit

Stylus Photo 890/1290 is equipped with 3 kinds of motors, the CR motor and PF motor

that are a DC motor and an ASF/Pump motor, and a stepping motor. The DC motor on

the C393MAIN board is used for DC motor control.

CR motor driver circuit

IC9 (A39374SLB) on the C393MAIN/C393MAIN-B board controls the CR and PFDC

motor while IC9(A3958SLB) on the C393MAIN-C board controls the CR motor.

ASIC sends signals of IC9 through IC8 and determines current of the CR motor. By

setting RST_DCMCU of ASIC “LOW “ level, the motor turns into a

“SLEEP”condition for energy saving.

The block diagram of the CR motor driver IC (IC9) is as shown below.

Figure 2-18. CR Motor Driver Circuit Block Diagram (C393MAIN)

Figure 2-19. CR Motor Driver Block Diagram (C393MAIN-B)

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EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 53

Figure 2-20. CR Motor Driver Circuit Block Diagram (C393MAIN-C)

NOTE: When C393MAIN-C is installed, ASIC sends signals of IC9 and IC1 through IC8

and determines current of the CR motor.

ASIC (IC19) controls the CR position by referring to the pulses sent from the linear

encoder. Based on the data sent from ASIC, the CPU sets an appropriate drive current

value used to determine the CR position and the direction in which the CR moves.

ASIC outputs specified control signals to the motor driver. The motor driver IC9 then

outputs CR motor drive current to the CR motor.

Unlike stepping motors, the DC motor that drives the carriage

can not detect the current

carriage position by referring to the pulses given. For this reason, a linear scale is

attached along the carriage operation range to detect the carriage position. The linear

encoder sensor outputs two kinds of TTL level pulses: Phase A and Phase B.

Figure 2-21. CR Linear Scale Encoder Pulse

Direction for the CR’s current movement is detected based on the pulse waveforms of

the shifted Phases A and B. Carriage position is, on the other hand, controlled based on

a cycle of Phase A output waveform (1 cycle=1/180 inches). Also, all rising and falling

edges of the waveforms in the both phases (1 cycle=720) are used to control the

position of the CR that is in its home position for ink system.

Home position detection

Home position is detected based on the pulses output from the linear scale sensor

and DC motor control current value. The basic home position detection sequence

is as described below:

1) The linear encoder pulse counter in the ASIC (IC19) is reset by an

initialization sequence at power-on.

2) The CR motor turns forward (clockwise) to move the carriage to the right.

ASIC(IC19)assumes that the CR is in contact with the right frame when the

following conditions are satisfied:

1/720”

1/180”

1/360”

Phase B

Phase A

Phase B

Phase A

Phase B

Phase A Forward Rotation

(Clockwise)

Backward Rotation

(Counterclockwise)

LED

Lens

Photo

Diodes

Photo

Diodes Comparators

Comparators

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 54

ASIC(IC19) detects the motor control current value is 720mA.

P1 (= number of pulses output during the above carriage movement) is

30* or less.

* Specified value that indicates CR is in the home position. (All edges in the

waveform are used in this condition.)

3) The CR motor rotates backward (counterclockwise) to move the carriage back

to the left, and ASIC(IC19) assumes that the carriage enters the CR lock lever

position when the following conditions are satisfied:

ASIC(IC19) detects the motor control current value is 500 mA.

Difference between P1 and P2 (= number of pulses output while the CR

moves from the right frame) is 30 or less.

4) The CR motor rotates backward to move the carriage to the right again, and if

ASIC (IC19) detects the motor control current value is 720 mA, it assumes

that the CR comes in back in contact with the right frame.

5) Difference between P1 and P3 (= number of pulses output for the CR’s

movement from the CR lock lever position to the right frame) is 4 or less.

When all the conditions in the sequence are satisfied, the printer detects the CR is in

the home position.

PTS (Print Timing Signal) production

The circuit produces PTS signal (cycle: 1/360 inches) by dividing waveform

cycles of Phase A. The print timing signal is used to eject ink at a correct timing.

Figure 2-22. Print Timing Signal and Linear Encoder Phase A

Phase B

1/180”

1/360”

Phase A

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 55

PF motor driver circuit

DC motor is used as the PF motor in this printer. IC9 (A39374SLB) on the

C393MAIN/C393MAIN-B board controls the CR and PFDC motor while

IC9(A3958SLB) on the C393MAIN-C board controls the CR motor.

The block diagram of the PF motor driver circuit is as shown below:

Figure 2-23. PF Motor Driver Circuit Block Diagram (C393MAIN)

Figure 2-24. PF Motor Driver Circuit Block Diagram (C393MAIN-B)

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EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 56

Figure 2-25. PF Motor Driver Circuit Block Diagram (C393MAIN-C)

ASIC(IC19)controls paper feeding amount by referring to the encoder pulses. ASIC

sends a proper drive current value to the motor driver. Based on the control signal from

ASIC, the motor driver (IC9or IC1) outputs drive current to the PF motor.

Unlike a stepping motor, this DC motor can not detect paper feeding amount by

referring to the pulses given. For this reason, a loop scale is attached on the Gear 76 to

detect paper feed amount.

The loop scale encoder sensor outputs two kinds of TTL level pulses Phase A and

Phase B to ASIC (IC19). Direction of the PF motor rotation is determined by the phase

between the output waveforms from Phase A and the waveforms form Phase B

Figure 2-26. Loop Scale Encoder Pulse

op25

Comparators

Photo

Diodes

Phase B

Phase A

1/1440”

1/5760“

Forward Rotation

(Clockwise)

Backward Rotation

(Counterclockwise)

Phase A

Phase B

LED

Lens

Photo

Diodes Comparators

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 57

2.2.2.4 ASF/Pump Motor Driver Circuit

ASF/Pump motor is a PM type stepping motor. The block diagram for the ASF/Pump

motor is as shown below:

Figure 2-27. ASF/Pump Motor Circuit Block Diagram

(C393MAIN/C393MAIN-C) Figure 2-28. ASF/Pump Motor Circuit Block Diagram

(C393MAIN-B)

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 58

2.2.2.5 Sensor Circuit

Stylus Photo 890/1290 has the following five sensors to detect printer’s status.

PE sensor

ASF sensor

Ink cartridge sensor (CSIC connector on the head board)

Head thermistor sensor

PF motor encoder

CR motor encoder

The block diagram for the sensor circuit is as shown below:

Figure 2-29. Sensor Circuit Block Diagram

(C393MAIN/C393MAIN-C)

Figure 2-30. Sensor Circuit Block Diagram (C393MAIN-B)

EPSON Stylus Photo 890/1280/1290 Revision C

OPERATING PRINCIPLES Electrical Circuit Operating Principles 59

Each sensor’s functions and operating principles are as described below:

PE sensor

The PE sensor is located at the bottom right edge of the top frame in the printer

mechanism. It detects paper on the rear paper guide using a photo sensor and PE

sensor lever that are included in the sensor. When paper is present, the PE sensor

lever does not cut in between the photo sensor terminals. So it outputs a LOW

signal to the ASIC. If there is no paper, on the other hand, the lever cuts in between

the photo sensor terminals. So it outputs a HIGH signal to the ASIC.

ASF sensor

The ASF sensor, located at the left edge of the ASF, detects ASF home position.

This sensor consists of the ASF HP detector wheel and a transmission photo

sensor. A small portion of the ASF HP sensor has a cutout, and when the cutout

comes into position between the photo diode terminals, that condition is detected

as ASF home position. In this status, since the photo diode terminals are not

blocked by the wheel, a LOW signal is output to ASIC. Otherwise, a HIGH signal

is output. Referring to the ASF home position detected by this sensor, the printer

drives the ASF/Pump motor to set the LD roller and paper return lever ready to the

paper loading position.

Ink cartridge sensor (CSIC connector on the head board)

Ink cartridge sensor detects whether a black or color ink cartridge is installed.

Installation condition is determined depending on the CSIC’s connection. When a

cartridge is installed, a LOW signal to ASIC is output. On the other hand, a HIGH

signal is output when a cartridge is out.

Head thermistor

The head thermistor is directly attached on the head driver board. It monitors the

temperature around the printhead and feeds back the temperature to the CPU

analog port. The printer refers to this information to control head driver voltage

based on the ink viscosity.

PF motor encoder

The PF motor encoder includes the loop scale attached to the left end of the PF

roller shaft and the transmission photo sensor. The minimum resolution of the

sensor is 1/180 inches. The sensor outputs HIGH signals for the black lines and

LOW signals for the transparent parts to the ASIC. The printer controls the PF

motor based on the signals output from this sensor.

CR motor encoder

CR motor encoder consists of the transmission photo sensor assembled in the CR

unit and the linear scale attached along the CR scanning line. The minimum

resolution of the sensor is 1/180 inch. It outputs HIGH signals for the black bands

and LOW signals for the transparent parts of the linear scale to the ASIC. The

printer controls the CR motor based on the signals output from this sensor. CR

home position is also detected based on the signals from this sensor.

CHAPTER

TROUBLESHOOTING

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 61

3.1 Overview

This chapter describes how to troubleshoot problems. It consists of the sections shown

in the flowchart below. When identifying and troubleshooting problems, be sure to

proceed to the correct section specified in the flowchart.

Figure 3-1. Troubleshooting Flowchart

Following sections give detailed information on each step in the flowchart. Be sure to

perform troubleshooting by following the specified steps without omitting any

necessary operations.

Following tables show the checkpoints for each motor and sensor.

STARTSTART

Troubleshooting with

LED error indicators

Isolating the defective

parts on the power supply

board

Isolating the problem

with exhibited

phenomenon

Table 3-1. Motor Resistance and Measurement Procedure

Motor Connector

to check Check pins Coil resistance

CR Motor CN14 Pin 1 & 2 29.2 Ω +/- 25%

PF Motor CN13 Pin 1 & 2 29.2 Ω +/- 25%

ASF/Pump Motor CN15 Pin 1 & 3 or Pin

2 & 4 10.4 Ω +/-10%

Table 3-2. Sensor Check and Measurement Procedure

Sensor Checkpoints Signal level Corresponding

condition

PE Sensor CN5, Pin 1 &2 LOW Paper present

HIGH Paper out

ASF Sensor CN6, Pin 1 &2

LOW In the ASF home

position

HIGH Out of the ASF home

position

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 62

3.1.1 Self-Diagnostic Function

The EPSON Stylus PHOTO 890/1290 is equipped with the self-diagnostic function.

With this function, the printer can check its operations after power-on, and shows its

various conditions using LED indicators.

3.1.1.1 Troubleshooting with LED Error Indicators

3.1.1.2 Error Conditions

This printer indicates an error when detecting the following conditions, and sets the

interface signal “/ERROR” to LOW and “BUSY” to HIGH to stop data input. In this

condition, the printer automatically enters non-printable status. Note if the printer is

establishing communication by IEEE1284.4 protocol, however, it remains in printable

status.

Each error condition is described below:

Ink Out

When the printer runs out of the most of the ink of any color, it warns Ink Low and

keeps printing.

Ink End

Ink in black/color cartridge ends.

Remaining level of ink is low. In this case, the printer warns of the condition with

LED indicators. If ink runs out, on the other hand, the printer shows an ink end

condition and stops its operation. Note the error occurs if ink of any color in the

color ink cartridge runs out.

Paper Out

The printer attempts to load paper but fails.

Table 3-3. Error Indication of Operation Panel

Printer Status Indicators Priority

Power Error

Power On condition On - 11

Ink sequence Blink - 7

Ink Cartridge replacement mode Blink - 6

Data Processing Blink - 10

Paper Out*1 -On5

Paper Jam*1 -On 5

Double Feed Error*1 On 4

Ink End (Black)*1 -On->Blink 9

Ink Level Low (Black) - Blink->Blink 9

Ink End (Color)*1 -On->Blink2 9

Ink Level Low (Color) - Blink->Blink2 9

Ink End (Black & Color)*1 -Blink->Blink 9

Ink Level Low (Black & Color) - Blink->On 9

No Ink Cartridge (Black or Color) -On 8

Reset, Timer IC reset, EEPROM

clear On On -

Ink Overflow Counter Reset On On

Maintenance Request (Ink

Overflow Counter error) Alt Blink Alt Blink 2

Fatal Error Off On 1

Special setting Blink2 Blink2 -

Table 3-3. Error Indication of Operation Panel

Printer Status Indicators Priority

Power Error

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 63

Paper Jam

The printer fails to eject remaining paper with the specified number of paper

feeding steps at power-on.

The printer can not eject paper despite the FF command is sent or Maintenance

Switch is pressed.

No Ink Cartridge

Ink cartridge is not installed or installed incorrectly.

Information in CSIC of the ink cartridge is not read or written properly.

Maintenance Request

Total wasted ink amount reaches its capacity by cleaning and flashing. The printer

indicates the error and stops operations.

Fatal Error

A fatal error is indicated when a carriage control error or CG access error occurs.

Double Feed Error

If the printer fails to load paper during duplex printing, the error occurs. Refer to

C A U T I O N Maintenance request error is not cleared until the waste ink pad is

replaced with a new one, and the waste ink counter in EEPROM is

reset by the service operation.

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 64

Table 3-4. Error Condition and Possible Causes

No. Error Possible Causes Refer to:

1 Paper Out 1. Failure in paper loading

2. PE sensor connector is disconnected.

3. Sensor actuator is not acting properly or sensor bracket is not installed correctly.

4. PE sensor is defective.

5. ASF operates abnormally.

Table 3-5

2Paper Jam 1. Paper length is beyond the specifications.

2. The sensor is left on because paper dust or other foreign matter is lodged.

3. Sensor actuator is not acting properly or sensor bracket is not installed correctly.

4. PE sensor is defective.

5. Hopper release lever is not attached properly.

Table 3-6

3 Ink End / No Ink Cartridge 1. CSIC is not connected properly.

2. CSIC is defective.

3. Head FPC is defective.

4. Control board is defective.

Table 3-7

4Maintenance Request Protect counter is showing limit. Table

5 Fatal Error 1. Linear encoder FFC is disconnected from the sensor or liner encoder is not attached

to the carriage.

2. Linear encoder is dislocated.

3. ASF sensor is dislocated or ASF sensor connector is disconnected.

4. ASF sensor is defective or it fails to detect ASF home position.

5. PF encoder FFC is disconnected from the encoder sensor or the encoder fails to read

the slit pattern on the loop scale.

6. CR motor coil is discontinued or burned.

7. PF motor coil is discontinued or /burned.

8. ASF/Pump motor coil is discontinued or burned.

Improper engagement of ASF gear (32) and the combination gear (14, 28) in the DE

unit.

9. Torsion spring (0.618) has come off the DE lock lever or hook in the DE unit.

Table 3-9

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 65

3.1.1.3 Remedies for Paper Out Error

This section provides checkpoints and corresponding actions to take when a Paper Out

error occurs for either of the following reasons:

Paper is set in the ASF hopper but not fed.

Paper is loaded but not detected by the PE sensor actuator.

Be sure to follow the steps in the order listed in the table.

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the

actions in the right column. If not, proceed to the next step.

Table 3-5. Remedies for Paper Out Error

Step Problem Check & Actions

1 Maintenance Switch is

pressed but paper is not

loaded even when the

ASF LD rollers turn,

and a Paper Out error is

displayed.

1. Set a cleaning sheet in the ASF up side down.

2. Holding the top edge, press the Maintenance Switch to

remove micro pearl from the paper load roller.

To remove severe soiling, staple a cloth moistened with

alcohol to a postcard and clean the roller in the same

manner.

2 The Maintenance

Switch is pressed and

the ASF LD rollers

turn. But they turn

again to send paper

beyond TOP position.

Then a Paper Out error

is displayed.

Check if the connector (yellow, 3-pin) for the PE sensor is

connected to PE sensor or CN5 on the Main Board.

Ditto Ditto • Using your hand, move the actuator as if it were being

pushed by incoming paper. Then release the actuator

and check if it automatically returns to its original

position with the tension of the torsion spring.

• Referring to the illustration above, check that the sensor

base is securely installed to the frame. If the sensor base

is loose or installed insecurely, instal it securely.

Non-adhesive Area

Cloth moistened

with alcohol

Adhesive Area

This side down

Staples

CL Sheet

Base Sheet

(Postcard)

Base Sheet

(Postcard)

Non-adhesive Area

Torsion Spring

PE Sensor

Connector

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 66

3 Ditto Check if the PE sensor is defective. Manually toggling the

actuator, measure the voltage at CN5/Pin 3. The correct

voltage levels are as follows:

4 The Maintenance

SwitchMaintenance

Switch is pressed and

the hopper appears to

be working OK. But

paper is not loaded.

Then a Paper Out error

is displayed.

Hand-rotate the shaft in the ASF in the paper feed direction

and check if the hopper springs back every time you rotate

the shaft.

NOTE: Even though the ASF HP sensor is working

properly, the hopper does not load paper if it is not

operating at the correct timing. To solve that problem,

disassemble and reassemble the ASF or replace it. In case

the ASF HP sensor detects the ASF home position during

paper feed sequence, the printer enters a fatal error

condition.

Table 3-5. Remedies for Paper Out Error (continued)

Step Problem Check & Actions

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 67

3.1.1.4 Remedies for the Paper Jam Error

This section includes the checkpoints and actions to take to troubleshoot the Paper Jam

error when it occurs during paper feeding or after the printer is turned on.

The printer detects the Paper Jam Error in the following condition.

When the printer is turned on, the PE sensor detects paper and attempts to

eject it using the PF roller. But the paper detection signal does no change to

HIGH.

Be sure to follow the steps in the order described in the tables.

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the

actions in the right column. If not, proceed to the next step.

3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge

Problem

This section includes the checkpoints and corresponding actions to take to troubleshoot

the No Ink Cartridge Error / Ink Cartridge Problem.

Be sure to follow the steps in the order listed in the table.

Table 3-6. Remedies for Paper Jam Error

Step Problem Check & Actions

1 The PF roller turn to eject

paper but can not eject it

completely. Then a Paper

Jam error is displayed.

Explain to the user that a Paper Jam error occurs if the

paper whose length is beyond the specifications is

used.

2 The printer is turned on,

the PF roller turns

continuously for ten

seconds, and then a Paper

Jam error is displayed.

Check if there is any paper debris or dust lodged on the

PE sensor. Also, viewing the PE sensor from the front,

check its lever is set in the correct position.

3 ditto Referring to Table 3-5 / Step 3, check if the sensor is

operating properly.

4 Paper is loaded at the ASF

and fed by the PF roller,

but its leading edge dose

not reach the front paper

guide.

The ASF repeats paper

feeding motion and the

Fatal Error is displayed.

Check if the ASF hopper release lever is properly

installed to the LD roller shaft.

Table 3-6. Remedies for Paper Jam Error

Step Problem Check & Actions

PE Sensor Lever

Paper Guide Assy. PF Roller

Left ASF Hopper

Right ASF Hopper

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 68

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the

actions in the right column. If not, proceed to the next step. 3.1.1.6 Remedies for Maintenance Request Error

If the printer is in this error condition (ink overflow counter error), it stops all

operations including data transfer, except for Special Setting Mode.

Table 3-7. Remedies for No Ink Cartridge Error/Ink Cartridge Problem

Step Problem Check & Actions

1 The printer is turned on

and then displays a No

Ink Cartridge error.

• Check if any ink cartridges are installed improperly.

If so, reinstall them.

• Try removing the ink cartridges and reinstalling them.

2 Ditto Check the level of the ink remaining using the printer

driver or progress meter.

3 Ditto Replace the ink cartridges with new ones.

• CSIC is defective.

4 Ditto • Check if the head FFC is correctly connected to the

head.

• Check if the head FFC is properly connected to the

connector on the main board.

• Check if the main board is defective.

Table 3-8. Remedies for Maintenance Request Error

Step Problem Check & Actions

1 The Power(green) and Error (red)

LEDs blink alternately.

• Remove Absorber Tray (Refer to

“TRAY, ABSORBER ASSEMBLY

Removal” on page -89).

• Replace Waste Ink Pad with a new one.

2 Ditto • Switch to Sepecial Setting Mode

Turn the power on while pressing the

Maintenance and Roll Paper Switches

simultaniously to switch to Special

Setting Mode.

3 Ditto • While the Power and Error LEDs are

blinking (3 seconds), press the Roll

Paper Switch for 10 seconds.

• Then, the ink overflow counter in

EEPROM is reset.

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 69

3.1.1.7 Remedies for Fatal Error

A fatal error is basically caused by any of the following conditions:

The printer fails to detect the CR home position.

The printer fails to detect signals from the linear scale.

The ASF sensor fails to detect the ASF home position.

The following table shows various causes of the fatal error and corresponding

solutions. Be sure to follow the steps correctly to troubleshoot the fatal error.

NOTE: If the exhibited problem is similar to a problem listed under “Problem”, take the

actions in the right column. If not, proceed to the next step.

Table 3-9. Remedies for Fatal Error

Step Problem Check & Actions

1 The printer is powered

on and the CR unit

leaves its home

position and then

collides with the right/

left frame. After that, a

fatal error is displayed.

Check the linear encoder board visually for the following:

• Is the linear encoder board properly installed to the

carriage? If not, install it properly.

• Is the encoder FFC connected to the connector? If not,

connect it properly.

2 Ditto • Check that the linear encoder belt passes through the

slot in the sensor.

• Check that the sensor is free from dust and paper

debris.

3 When the Printer is

turned on, the CR

moves a little and you

hear the ASF Hopper

moving.

After that, a fatal error

is displayed.

• Referring to the figure below, check that the ASF

sensor is attached to the correct position.

• Check that both connectors 1 and 2 are securely

connected.

Linear Encoder Board

ASF Sensor

ASF Frame (Left)

Connector 1

Connector 2

(CN6)

Control

Board

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 70

4 Ditto Turn the printer on and check for the correct voltages at

the pins shown in the figure below:

Table 3-9. Remedies for Fatal Error (continued)

Step Problem Check & Actions

To Pin 3

(ASFV)

To Pin 2

(GND)

CN6

• When the ASF HP detector wheel is in home

position, the voltage is 0.7 V or less.

• When the ASF HP detector wheel is out of home

position, the voltage is 2.4 V or more.

5 The printer is turned on

and the carriage and the

PF motor move a little.

After that, a fatal error

is displayed.

Check for the signal output from the PF encoder at either

pair of the following pins on the main control board:

• Pin 1 an Pin 4 of CN12

• Pin 1 and Pin 2 of CN12

Check for the signal output from the linear encoder at

either pair of the following pins on the main control board:

• Pin 1 an Pin 4 of CN12

• Pin 1 and Pin 2 of CN12

6 The printer is turned on

but the CR motor does

not operate at all. After

that, a fatal error is

displayed.

Measure the coil resistance of the CR motor using a meter

as shown below:

Table 3-9. Remedies for Fatal Error (continued)

Step Problem Check & Actions

Encoder Output Waveform

CR MotorCR Motor

Resistance: 29.2Ω ± 25%

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 71

7 The printer is turned on

but the PF motor does

not operate at all. After

that, a fatal error is

displayed.

Measure the coil resistance of the PF motor using a meter

as shown below:

8 The printer is turned on

but the ASF hopper

does not make noises.

After that, a fatal error

is displayed.

Measure the coil resistance of the ASF/Pump motor.

NOTE: Be sure to measure the resistance at each pair of

points shown above.

Table 3-9. Remedies for Fatal Error (continued)

Step Problem Check & Actions

PF Motor PF Motor

Resistance: 29.2Ω ± 25%

To Pin 1

To Pin 3

To Pin 2

To Pin 4

CR Motor

Step 2

Resistance: 10.4 Ω ± 10%

Step 1

9 The Printer is turned on

but:

• ASF makes no

noises.

• ASF does not move

but its gear is

making noises.

After that, a fatal error

is displayed.

Check that the ASF unit is properly installed by the correct

points as shown below:

10 The printer is turned on

but the ASF dose not

move at all. After that,

a fatal error is

displayed.

Check that the torsion spring is securely attached to the

DE lock lever and DE unit.

Table 3-9. Remedies for Fatal Error (continued)

Step Problem Check & Actions

Stylus Photo 890

Stylus Photo 1290

Tension Spring (0.618)

DE Lock Lever

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 72

3.1.2 Isolating the Faulty Part on the Power Supply Board

This section explains how to troubleshoot the following problems:

The printer is turned on but it does not perform initialization and no LED

indicators come on.

Problems occurs after the printer is turned on.

Be sure to troubleshoot in the order specified since the steps are listed in the

disassembly order to facilitate the job.

NOTE: If you answer “Yes” to a question listed under “Checkpoint”, take the action

described to the right under “Action”. If “No”, proceed to the next step.

3.1.3 Isolating the Faulty Part according to the

Phenomenon

Refer to this section if you could not solve the problem in Section 3.1.1.1 or Section

3.1.2 or need more information to isolate the cause according to the exhibited

phenomenon. This section mostly covers the problems relating to the main control

circuit and other parts.

Table 3-10. Isolating the Faulty Part on the Power Supply Board

Step Checkpoint Action

1 Is the Panel FFC

disconnected from the

connector on the panel

board?

The power switch for this printer is in the secondary

side. Therefore, if the FFC does not transmit signals, the

power supply board is not active despite the main board

operates properly.

2 Is the Panel FFC

disconnected from CN11

(black, 12-pin) on the

Main Board?

The power switch for this printer is in the secondary

side. Therefore, if the FFC does not transmit signals, the

power supply board is not active despite the main board

operates properly.

3 Has the Pin 3 of the panel

FFC broken?

Check for the Pin 3 using a circuit tester.

4 Has the fuse (F1) on the

power supply board

blown out?

Check if the F1 located beside CN1 on the power supply

board has blown out.

5 Is CN1 on the power

supply board

disconnected?

Check if CN1 is properly connected. CN1 supplies AC

power to the primary side of the power supply board.

6 Is CN10 on the main

board disconnected?

Check if CN10 on the main board is properly connected.

CN10 supplies DC voltage to the control circuit.

7 - Replace the Power Supply Board with a new one.

Table 3-11. Phenomenons Exhibited

No. Phenomenon Exhibited Table to refer to

1 CR motor does not rotate. Table 3-12

2 PF motor does not rotate. Table 3-13

3 Pump/ASF motor does not rotate. Table 3-14

4Cleaning does not solve the print problem. Table 3-15

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 73

Table 3-12. CR Motor does not Work

Step Checkpoint Action

1 Getting ready for

checking

waveforms.

Using an oscilloscope, check the outputwaveform at CN14

(CR motor connector) on the main board. For checking, press

the Maintenance Switch to drive the CR motor.

NOTE: Be sure to disconnect the CR motor cable.

2 Checking the

waveforms to

solve the

problem.

Drive the CR motor and check that the waveform shown below

is output from each pin of CN14.

• If the waveform appears as shown, replace the CR motor.

• If not, replace the main control board.

Table 3-13. PF Motor does not Work

Step Checkpoint Action

1 Getting ready for

checking

waveforms.

Using an oscilloscope, check the outputwaveform at CN13 (PF

motor connector) on the main board. For checking, press the

Maintenance Switch to drive the PF motor.

NOTE: Be sure to disconnect the PF motor cable.

2 Checking the

waveform to

solve the

problem.

Drive the PF motor and check that the waveform shown below

is output from each pin of CN13.

• If the waveform appears as shown, replace the PF motor.

• If not, replace the main control board.

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 74

Table 3-14. ASF/Pump Motor does not Work

Step Checkpoint Action

1 Getting ready for

checking

waveforms.

Using an oscilloscope, check the outputwaveform at CN115

(ASF motor connector) on the main board. For checking,

press the Maintenance Switch to drive the CR motor.

NOTE: Be sure to disconnect the ASF/Pump motor cable.

2 Checking the

waveforms to

solve the

problem.

Drive the ASF/Pump motor and check that the waveform

shown below is output from each pin of CN15.

• If the waveform appears as shown, replace the ASF/Pump

motor.

• If not, replace the main control board.

Table 3-15. Cleaning Does not Solve the Problem

Step Checkpoint Action

1 Run the head cleaning

7 or 8 times repeatedly.

Run the head cleaning by pressing the Cleaning button.

2 Perform the initial ink

charge operation.

You can perform the initial ink charge operation in the

manner described below:

1. Using the adjustment program, perform the initial

ink charge operation (= resets the initial ink charge

flag in the EEPROM).

2. Turn the printer off and back on.

3 Printhead FFC is

disconnected.

Take out the main board and check if the head FFCs are

connected to CN8 and CN9. If they are connected aslant

as shown below, reconnect them, and then run a print

check.

4 Check the cap for any

foreign matter, dirt, or

damage.

Remove the printer

mechanism and

release the carriage

lock to move the

carriage unit away

from home position.

Then, examine the cap

rubber closely for any

problem in the figure

at right.

Check that the connectors are not

connected aslant.

Dust

Rubber part

Damage

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 75

5 Check if the

compression spring has

come off the cap unit.

Check if the compression spring is correctly assembled

in the cap unit as shown below.

Note if the compression spring has come off the cap

unit, the cap can not cover the head closely with enough

air tightness, and ink will not be absorbed as a result.

6 Check if any ink tubes

are disconnected from

the cap unit.

Referring to the figure below, check the following:

• Are all ink tubes securely connected to the cap unit?

• Are any ink tubes damaged?

Table 3-15. Cleaning Does not Solve the Problem (continued)

Step Checkpoint Action

Compression Spring Cap Unit

Cap Unit Ink Tube

EPSON Stylus Photo 890/1280/1290 Revision C

TROUBLESHOOTING Overview 76

7 Check if the head FFCs

have come off the

printhead.

Remove the head FFC holder from the CR unit, and

check that both FFCs are properly connected. Even if

they appear to be properly connected (not slant), try

disconnecting and then connecting them.

8 Check if the head

driver is defective.

The common driver transistors Q2 and Q3 are attached

the heat sink on the main board. To check their

conditions, check the sawtooth waveform at the emitter

terminals the transistors using an oscilloscope.

Table 3-15. Cleaning Does not Solve the Problem (continued)

Step Checkpoint Action

Head FFCs

Head Board

9 Check if the pre-driver

IC (IC10 or IC11) is

defective.

If the waveform is not output in the previous step, check

for the waveform at the base of Q2 and Q3. Check for

the sawtooth waveform output from the pre-driver IC.

• If the correct waveform is output, transistor Q2/Q3 is

defective.

• If the correct waveform is not output, the pre-driver

IC is defective.

Table 3-15. Cleaning Does not Solve the Problem (continued)

Step Checkpoint Action

CHAPTER

DISASSEMBLY AND ASSEMBLY

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Overview 78

4.1 Overview

This chapter describes procedures for disassembling the main components of the

EPSON Stylus Photo 890/1280/1290. Unless otherwise specified, disassembly units or

components can be reassembled by reversing the disassembly procedure. Therefore, no

assembly procedures are included in this chapter. Precautions for any disassembly or

assembly procedure are described under the heading “CAUTION” and “CHECK

POINT”. Any adjustments required after disassembling the units are described under

the heading “REQUIRED ADJUSTMENT”.

4.1.1 Precaution for Disassembling the Printer

See the precautions given under the heading “WARNING” and.“CAUTION” in this

section when disassembling or assembling EPSON Stylus Photo 890/1280/1290.

W ARNING Disconnect the power cable before disassembling or

assembling the printer.

If you need to work on the printer with power applied,

strictly follow the instructions in this manual.

Wear protective goggles to protect your eyes from ink. If

ink gets in your eye, flush the eye with fresh water and

see a doctor immediately.

Always wear gloves for disassembly and reassembly to

avoid injury from sharp metal edges.

To protect sensitive microprocessors and circuitry, use

static discharge equipment, such as anti-static wrist

straps, when accessing internal components.

Never touch the ink or wasted ink with bare hands. If ink

comes into contact with your skin, wash it off with soap

and water immediately. If irritation occurs, contact a

physician.

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Overview 79

4.1.2 Tools

Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the

printer. Use only tools that meet these specifications.

NOTE: *1: Common cartridge with Stylus Photo 870/1270.

*2: Common cartridge with Stylus Photo 870.

*3: Common cartridge with Stylus Photo 1270.

C A U T I O N Never remove the ink cartridge from the carriage unless

this manual specifies to do so.

When transporting the printer after installing the ink

cartridge, be sure to pack the printer for transportation

without removing the ink cartridge.

Use only recommended tools for disassembling,

assembling or adjusting the printer.

Observe the specified torque when tightening screws.

Apply lubricants and adhesives as specified. (See

Chapter 6 for details.)

Make the specified adjustments when you disassemble

the printer.

(See Chapter 5 for details.)

When assembling, if an ink cartridge is removed and

needs to be installed again, be sure to install a new ink

cartridge because of the following reasons;

1.Once the ink cartridge mounted on the printer is removed,

air comes in and creates bubbles in the cartridge. These

bubbles clog ink path and cause printing malfunction.

2.If an ink cartridge in use is removed and is reinstalled, ink

quantity will not be detected correctly since the counter to

check ink consumption is cleared.

Because of the reasons above, make sure to return the

printer to the user with a new ink cartridge installed.

Make sure the tip of the waste ink tube is located at

correct position when reassembling the waste ink tube.

Otherwise it will cause ink leakage.

Table 4-1. Tool List

Tools Commercially

Available Code

(+) Driver No.2 O.K. B743800200

(+) Driver No.1 O.K. B743800400

Tweezers O.K. B741000100

Hexagon Box Driver

(Paired side: 5.5mm) O.K. B741700100

Scale PF unit Assembling tool EPSON exclusive 1050767

Mounting Plate Scale Attachment

tool EPSON exclusive 1051765

ROM Extractor No.F749 EPSON exclusive 2035659

Black Empty Cartridge

(Stylus Photo 890/1290)*1 EPSON exclusive 1049785 (#F738)

Color Empty Cartridge

(Stylus Photo 890 only)*2 EPSON exclusive 1049786 (#F741)

Color Empty Cartridge

(Stylus Photo 1290 only)*3 EPSON exclusive 1049787 (#F742)

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Overview 80

4.1.3 Specifications for Screws

Table 4-2 shows screw specifications. During assembly and disassembly, make sure

that the specified types of screws are used at proper locations, referring to the table

below.

Table 4-2. Screw Specifications

Body Name Size

+Bind S-tite (CBS) M3x6

+Bind P-tite (CBP) M3x6

+Bind P-tite (CBP) M3x8

+Bind P-tite (CBP) M2.5x5

+Pan head (C.P.) M3x6

--- +Pan head B-tite Sems M3X8

+Bind S-tight Sems (CBS Sems) M3x6

+Bind S-tight (CBS) M3x10

--- +Pan head B-tite Sems 1.7 x 5

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Overview 81

4.1.4 Service Checks After Repair

Before returning the printer after servicing, use the check list below, which enables you

to keep record of servicing and shipping more efficiently.

Table 4-3. Inspection Checklist for Repaired Printer

Category Component Item to check Is Check Required?

Printer units

Self-test Is the operation normal? Checked / Not necessary

On-line test Was the on-line test successful? Checked / Not necessary

Printhead Is ink ejected normally from all nozzles? Checked / Not necessary

Carriage mechanism

Does the carriage move smoothly? Checked / Not necessary

Any abnormal noise during movement? Checked / Not necessary

Any dirt or obstacles around the shaft of carriage

guide? Checked / Not necessary

Is the CR motor at the correct temperature

(not over heating)? Checked / Not necessary

Paper feeding mechanism

Is paper fed smoothly? Checked / Not necessary

Does paper get jammed? Checked / Not necessary

Does paper get skew during paper feeding? Checked / Not necessary

Are papers multi fed? Checked / Not necessary

Does the PF motor get overheated? Checked / Not necessary

Abnormal noise during paper feeding? Checked / Not necessary

Is the paper path clear of all obstructions? Checked / Not necessary

Adjustment Specified adjustment items Are adjusted conditions all right? Checked / Not necessary

Lubricant Specified lubricated item Is lubrication applied to the specified locations? Checked / Not necessary

Is the quantity of lubrication adequate? Checked / Not necessary

Function ROM version Newest version: Checked / Not necessary

Shipment package

Ink cartridges are the ink cartridges installed correctly? Checked / Not necessary

Protection conditions during

transport Is all the pointed parts firmly fixed? Checked / Not necessary

Others Attached items Are all attached items from users included? Checked / Not necessary

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 82

4.2 Disassembly Procedures

The flowchart below shows procedures for disassembly.

Figure 4-1. Flowchart of Disassembly

START

HOUSING Removal

MOTOR ASSEMBLY,

CR Removal

DE Unit Removal

PE Sensor Unit

Removal

Printhead Unit

Removal

Panel Unit Removal

TRAY, ABSORBER

ASSEMBLY Removal

Ink Unit Removal

MOTOR ASSEMBLY,

ASF Removal

BOARD ASSEMBLY,

ENCODER Removal

ASF Unit Removal Carriage Unit

Removal

ROLLER, PF Removal

SHAFT, ROLLER,

LD Removal

ROLLER ASSEMBLY,

LD, RIGHT/LEFT MOTOR ASSEMBLY,

PF Removal

START

Circuit Board

Assembly Removal

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 83

4.2.1 HOUSING Removal

Since the printer mechanism itself structures the bottom part, it appears just by

removing HOUSING.

1. Open the printer cover and set the PG adjustment lever to (+).

2. Remove the four screws (CBS, 3x10) securing HOUSING, and remove it.

Figure 4-2. HOUSING Removal

C A U T I O N When removing HOUSING, push it to the rear a little first, and

then lift it up.

CHECK

P O I N T

When installing HOUSING, make sure the PG

adjustment lever is set to (+).

After assembling HOUSING, ensure the head FFC is

not caught in the back of HOUSING.

CBS (3x10)

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 84

4.2.2 Circuit Board Assembly Removal

Since BOARD ASSEMBLY, MAIN and BOARD ASSEMBLY, POWER SUPPLY

are built in a bracket separated from the Printer Mechanism, they can be removed as

one unit.

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the screws (CBS, 3x6) securing the M/B Unit to the printer mechanism.

Refer to Figure 4-3.

Stylus Photo 890: 7 screws

Stylus Photo 1290: 8 screws

Figure 4-3. Removing the M/B Shield Plate

3. Lifting up SHIELD PLATE, M/B Unit a little, remove COVER, CABLE and

COVER, CABLE; B together with the cables.

4. Disconnect all cables from the connectors on the main board and power supply

board.

CN1(AC Source connector on the power supply board)

CN5 (PE sensor)

CN6 (ASF sensor)

CN15 (ASF/Pump motor)

CN8 (Head FFC)

CN9 (Head FFC)

CN19 (from the secondary side of the PS board)

CN11 (Panel Unit)

CN12 (PF Encoder Sensor)

5. After removing BOARD ASSY, MAIN without cables, remove SHIELD PLATE,

M/B Unit from the printer mechanism.

COVER,

CBS (3x6)

COVER, CABLE

CBS (3x6)

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 85

Figure 4-4. Circuit Board Removal

6. For removing each circuit board assembly from the M/B Shield Plate, remove the

screws securing each unit and shield plate.

C393MAIN Board: Total 10 screws

7 screws: CBS (3x6)

3 screws: CP (3x6)

C378PSB/PSE Board: Total 4 screws (CBS, 3x6)

C393MAIN Board

Earth Plate

CBS (3x6)

Earth Plate

SHIELD PLATE, M/

CP (3x6)

C378PSB/PSE

Board C A U T I O N Since the CN10 is a locking connector, be sure to unlock it

before disconnecting the cables.

Since the head FFCs have the same number of pins, be sure to

connect them to the right connectors.

When connecting the cables, connect them to the correct

connectors paying attention to the number of the pins.

A D J U S T M E N T

R E Q U I R E D

Be sure to perform the following adjustments when you replace

the Main Board:

1. Head ID input (Refer to Chapter 5.)

2. Bi-D adjustment (Refer to Chapter 5.)

3. USB ID input (Refer to Chapter 5.)

Be sure to replace the following parts when replacing the Main

Board:

1. Waste ink absorbers

2. Ink cartridge (BK & Color)

Note this part replacement is required since several counters stored

in the EEPROM are lost with a Main board replacement.

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 86

4.2.3 Panel Unit Removal

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the harness for the Panel Unit from the frame in the printer mechanism.

3. Remove 4 screws (CBS, 3x6) securing the Panel Unit together with HOUSING,

REINFORCING, RIGHT to the printer mechanism.

4. Release the hook for the for HOUSING, REINFORCING, RIGHT from the square

cutout in the printer mechanism.

CHECK

P O I N T When installing SHIELD PLATE, M/B to the printer

mechanism, set the cables, COVER CABLE, and COVER,

CABLE; B as shown in the figure below:

Figure 4-5. Setting the Cables to the Cable Covers

COVER, COVER, CABLE; B

Opening

CHECK

P O I N T When installing the harness to the printer mechanism, be sure to

stick it along the marking line on the frame.

Harness

Marking Line

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 87

5. Remove 1 screw (CBP, 3x8) securing Panel Unit to the printer mechanism and

release the pins fit in the printer mechanism.

Then remove the Panel Unit along with HOUSING, REINFORCING, RIGHT.

Figure 4-6. Panel Unit Removal

6. Remove 2 screws (CBP, 3x8) securing SHIELD PLAT, PANEL to the Panel Unit,

and then remove SHIELD PLATE, PANEL.

Figure 4-7. BOARD ASSEMBLY, PANEL Removal

7. Remove screws (CBP, 3x8 & Cup P-Tite, 3x6) securing BOARD ASSEMBLY

PANEL to the Panel Unit.

8. Disconnect the harness from BOARD ASSEMBLY, PANEL.

HOUSING,

REINFORCING, RIGHT

Cutout

CBS (3x6)

Pins

Panel Unit

C A U T I O N When removing the Panel Unit, watch out for the stacker

assembly. Since the stacker assembly is attached to the Panel

Unit and HOUSING, PANEL, LEFT, if you remove the Panel

Unit, the stacker assembly will also come off.

BOARD ASSEMBLY, PANEL

CBP (3x8)

Harness

Cup P-Tite (3x6) CBP (3x8)

CBP (3x8)

SHIELD PLATE, PANEL

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 88

4.2.4 Printhead Unit Removal

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Set the PG lever to the rear.

3. Using tweezers, put the CR lock lever down to unlock the carriage.

4. Release the three hooks (A, B, C) fixing HOLDER, CABLE to the carriage, and

remove HOLDER, CABLE.

Figure 4-8. Printhead Removal

5. Disconnect the head FFC from the connector on the printhead.

6. Remove the FFC from the BOARD ASSEMBLY, ENCODER.

Figure 4-9. Encoder FFC Removal

Figure 4-10. HEAD Removal

7. Move the carriage to the left end of the printer manually.

8. Remove 2 screw (CBP, 3x6 & CCB Sems W2, 2.5x6) securing the printhead to the

carriage, and remove the printhead.

Head FFC

HOLDER, CABLE

BOARD ASSEMBLY,

ENCODER

FFC

A D J U S T M E N T

R E Q U I R E D When you replace the Printhead Unit, perform the following

adjustments:

1. Initial ink charge (Refer to Chapter 5)

2. Head ID Input (Refer to Chapter 5)

3. Bi-D Adjustment (Chapter 5)

CBP (3x6)

HEAD

CBB (W2)

M2.5x6

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 89

4.2.5 TRAY, ABSORBER ASSEMBLY Removal

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the Panel Unit. (Refer to Section 4.2.3.)

3. Remove 2 screws (CBS, 3x6) securing HOUSING, PANEL, LEFT to the front left

part of the printer mechanism.

Figure 4-11. HOUSING, PANEL, LEFT Removal

4. Remove 1 screw (CBP, 3x8) securing HOUSING, PANEL, LEFT to the

HOUSING, SUB, LEFT.

5. Release the pin fixing HOUSING, PANEL, LEFT to the printer mechanism, and

then remove HOUSING, PANEL, LEFT toward the front.

6. Remove 2 screws (CBS, 3x6) securing HOUSING, SUB, LEFT to the printer

mechanism.

7. Release 3 hooks (2 at the bottom and 1 in the front) fixing HOUSING, SUB, LEFT

to the printer mechanism, and remove HOUSING, SUB, LEFT.

8. Remove 1 or 2 screws (CBP, 3x6: Stylus Photo 890 1 screw, Stylus Photo 1290 2

screws) securing PAPER GUIDE, LOWER to TRAY, ABSORBER ASSEMBLY

at the middle of the printer mechanism, and then remove PAPER GUIDE,

LOWER.

Figure 4-12. TRAY, ABSORBER ASSEMBLY Removal

C A U T I O N When removing HOUSING, PANEL, LEFT, watch out for the

Stacker Assembly. Since the Stacker Assembly is fixed by the

Panel Unit and HOUSING, PANEL, LEFT, it will come off as

HOUSING, PANEL, LEFT is removed.

HOUSING, PANEL, LEFT

Pin CBS (3x6)

CBP (3x8)

ABSORBER,

WASTE INK,

LARGE/SMALL

CBP (3x8)

TRAY, ABSORBER

CBP (3x8)

SPACER, TRAY

PAPER GUIDE,

LOWER

FRAME,

Hook in TRAY,

ABSORBER

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 90

9. Removing 1 screw (CBP, 3x8) securing TRAY, ABSORBER ASSEMBLY to the

right part of the printer mechanism.

10. Remove SPACER, TRAY securing TRAY, ABSORBER to the left side of the

printer mechanism, and then remove TRAY, ABSORBER by moving it

downward.

11. Remove ABSORBER, WASTE INK, LARGE/ SMALL from TRAY,

ABSORBER.

C A U T I O N When installing TRAY, ABSORBER ASSEMBLY to the

printer mechanism, make sure they are securely jointed with

SPACER, TRAY. Refer to Figure 4-12.

Be careful not to damage SCALE, PF, (loop scale) when

installing SPACER, TRAY.

When installing ABSORBER ASSEMBLY, make sure the Ink

Tube is correctly placed in the ABSORBER ASSEMBLY. If

not, it may cause an ink leakage.

A D J U S T M E N T

R E Q U I R E D

If you replace TRAY, ABSORBER ASSEMBLY, be sure to

perform the Waste ink counter reset operation. (Refer to

Chapter.)

When installing TRAY, ABSORBER ASSEMBLY to the

printer mechanism, make sure it securely joins to FRAME,

RIGHT by its hook in the right.

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 91

4.2.6 Ink Unit Removal

NOTE: Ink Unit consists of the Pump Unit, Cleaner Head, and Cap Assembly.

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the Panel Unit. (Refer to Section 4.2.3.)

3. Remove SHEET, INK STOPPER.

Figure 4-13. SHEET, INK STOPPER Removal

4. Remove TRAY, ABSORBER ASSEMBLY. (Refer to Section 4.2.5.)

5. Remove the three screws (CBS, 3x6) securing the Ink Unit to the FRAME,

MIDDLE.

6. Remove 3 screws (CBS, 3x6) securing the Ink Unit to FRAME, TOP. Then

remove the Ink System Assembly.

7. Release the hook fixing the Cap Assembly to the Ink Unit, and then remove the

Cap Assembly.

8. Disconnect the tube from the Cap Assembly.

Figure 4-14. Ink Unit Removal

SHEET, INK STOPPER

CBS (3x6)

Ink Unit

Hook in the Cap Assembly

FRAME, MIDDLE CBS (3x6)

CBS (3x6)

FRAME, TOP

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 92

Figure 4-15. Setting the ABSORBER, SLIDER, CAP

Figure 4-16. Ink Tube Installation (1)

C A U T I O N 1. When handling CLEANER, HEAD, note the points below:

Do not touch CLEANER, HEAD with your bare hands.

Ware gloves or use tweezers.

Do not smear CLEANER, HEAD with oil or grease.

When installing CLEANER, HEAD, set the rubber side

(black side) facing to the right.

2. When replacing the Cap Assembly, do not touch its sealing

rubber part.

When assembling, make sure the Ink Tube is correctly placed

at the correct position. If not, it may cause an ink leakage.

CHECK

P O I N T

1. When assembling the Cap Assembly to the Ink System

Assembly, make sure ABSORBER, SLIDER, CAP is assembled

in the cap assembly. ABSORBER, SLIDER, CAP should be set

as shown in Figure 4-15 in advance.

2. Check that the ink tube is securely connected to the connection

part of the Cap Assembly. (See Figure 4-16.) Also, make sure

the tube is not bent or crushed by the connection area. (See

Figure 4-17.)

3. Check that the ink tube is placed correctly in the Ink System.

(See to Figure 4-16.) Pay special attention in connecting the tube

to the Pump Unit. Connect the tube by strictly following the

instruction given in Figure 4-18.

4. When assembling, be careful not to crush or leave any stress on

the ink tube that connects the Pump Unit and Cap Assembly.

Also,

5. After installing the Pump Unit, ensure that CLEANER, HEAD

moves back and forth with rotation of the gear.

About 60-90°ABSORBER,

SLIDER, CAP

About 45°

Cap Assembly

Pump Unit

Ink Tube

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 93

Figure 4-17. Ink Tube Installation (2)

Figure 4-18. Connecting the Tube to the Pump Unit

Tube is not stretched out. Tube is not bent.

Pump Unit

Marking line on the tube

2 mm

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 94

4.2.7 MOTOR ASSEMBLY, CR Removal

1. Remove HOUSING. (Refer to Section 4.2.1)

2. Using tweezers or a small screw driver, put the carriage lock lever down to the

front, and then slide the carriage to the middle of the printer mechanism.

3. Push the HOLDER, PULLEY, DRIVEN to loosen the CR Timing Belt, and then

disengage the timing belt from the pulley on the CR motor.

Figure 4-19. Timing Belt Removal

4. Disconnect the connector for MOTOR ASSEMBLY, CR from the connector on

the main board. (Refer to Section 4.2.2.)

5. Remove 2 screws (CP, 3x6) securing MOTOR ASSEMBLY, CR to FRAME,

TOP, and then remove MOTOR ASSEMBLY, CR.

Figure 4-20. MOTOR ASSEMBLY, CR Removal

Pulley in MOTOR

ASSEMBLY, CR

SCALE, HOLDER, PULLEY,

DRIVEN Timing Belt

C A U T I O N When pushing HOLDER, PULLEY, DRIVEN, be careful not

to damage SCALE, PF (loop scale).

When releasing the timing belt, be careful not to damage

SCALE, CR (linear encoder).

When removing MOTOR ASSEMBLY, CR, be sure not to hit

the edge of the installation hole with the motor’s pulley.

A D J U S T M E N T

R E Q U I R E D

When removing MOTOR ASSEMBLY, CR, execute Bi-D

adjustment. See “Bi-Directional Adjustment“on page 133.

CP (3x6)

FRAME, TOP MOTOR ASSEMBLY, CR

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 95

4.2.8 MOTOR ASSEMBLY, ASF Removal

1. Remove HOUSING (Refer to Section 4.2.1.)

2. Remove the harness for MOTOR ASSEMBLY, ASF from the main board. (Refer

to Section 4.2.2.)

3. Lower LEVER, PLANETARY UNIT.

Figure 4-21. Setting LEVER, PLANETARY UNIT

4. Remove 2 screws (CBP, 3x8) securing MOTOR ASSEMBLY, ASF to

BRACKET, MOTOR, ASF. Then push the motor assembly to the rear and then to

the right to remove it.

Figure 4-22. MOTOR ASSEMBLY, ASF Removal

[Lever is held up.] [Lever is lowered.]

LEVER, PLANETARY

CHECK

P O I N T When installing MOTOR, ASSEMBLY, ASF5, make sure the

DE unit and LEVER, PLANETARY UNIT are set as shown

below:

CBP (3x8)

BRACKET, MOTOR, ASF

MOTOR ASSEMBLY, ASF

DE Unit (BRACKET,

MOTOR, ASF)

LEVER,

PLANETARY UNIT

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 96

4.2.9 DE Unit Removal

1. Remove HOUSING (Refer to Section 4.2.2.)

2. Remove MOTOR ASSEMBLY, CR. (See Section 4.2.7.)

3. Remove the Ink Unit. (Refer to Section 4.2.6.)

4. Remove 2 screws (CBS, 3x6) securing SHEET, PROTECTION INK to FRAME,

BOTTOM, and then remove the sheet.

Figure 4-23. SHEET, PROTECTION, INK Removal

5. Remove MOTOR, CR. (Refer to Section 4.2.7.)

6. Loosen 1 (CBS, 3x6) securing the LEVER ASSEMBLY, COMBINATION

GEAR to FRAME, MIDDLE.

7. Remove the tension sprig (7.37) hung to FRAME MIDDLE and LEVER

ASSEMBLY, COMBINATION GEAR, and then remove TENSION BELT,

PUMP, TRANSMISSION from the combination gear (12, 22.92).

Figure 4-24. TENSION BELT, PUMP, TRANSMISSION Removal

FRAME, TOP

CBS (3x6)

SHEET, PROTECTION, INK

FRAME, BOTTOM

TENSION BELT, PUMP,

TRANSMISSION

TENSION SPRING, 7.37

LEVER ASSEMBLY,

COMBINATION GEAR

FRAME, MIDDLE

CBS (3x6)

COMBINATION

GEAR, 12, 22.92

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 97

8. Remove the tension spring (0.618) attached to the LEVER, DE, LOCK and DE

Unit.

Figure 4-25. TENSION SPRING, 0.618 Removal

9. Release the hook in the DE Unit (BRACKET, MOTOR, ASF) securing LEVER,

DE, LOCK. Then push the lever out to the right to release it from the installation

hole in the DE Unit and remove it.

Figure 4-26. LEVER, DE, LOCK Removal

LEVER, DE,

TENSION SPRING, 0.618

C A U T I O N When removing LEVER, DE, LOCK, be careful not to break the

hook in the DE Unit.

Locking position

LEVER, DE, LOCK

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 98

10. Remove the CBS screw (3x6) and CBP (3x8) screw securing the DE unit to

FRAME, MIDDLE and FRAME, TOP, respectively. Then remove DE unit.

Figure 4-27. DE Unit Removal

11. Remove the harnesses from the harness clamp in the DE Unit.

C A U T I O N Be sure to remove the screw (CBP, 3x8) carefully so you do not

damage the linear encoder (SCALE, CR).

CBP (3x6)

CBP (3x8)

SCALE, CR

CHECK

P O I N T

Check that all gears are assembled in the DE unit correctly as

shown in the figure below:

Figure 4-28. Parts Layout in DE Unit

Before assembling MOTOR ASSEMBLY, ASF to the DE Unit,

set LEVER, PLANETARY UNIT to the pump side. (See Figure

4-28.)

Set TENSION BELT, PUMP, TRANSMISSION to the 17.19

gear of the Combination Gear (17.19, 25.6) before securing the

DE unit to FRAME, MIDDLE.

Combination Gear,

12, 22.4

Combination Gear,

17.19, 25.6

LEVER, PLANETARY UNIT

Combination

Gear, 14, 28

Felt, D3.6

Retaining Ring, D8.8

BRACKET,

MOTOR, ASF

Combination Gear,

17.19, 25.6

TENSION BELT, PUMP,

TRANSMISSION

DE Unit

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 99

4.2.10 ASF Unit Removal

1. Remove HOUSING. (Refer to Section 4.2.1.)

2. Remove the following cables from the cable clamp in the left side of the ASF

Assembly.

ASF HP sensor cable

MOTOR ASSEMBLY, PF cable

3. Disconnect the ASF HP sensor cable from the connector on the sensor.

4. Remove the head FFC from the ASF Unit.

5. Remove 1 screw (CBS Sems, 3x6) and SHAFT, MOUNT, CR that are securing

the ASF Unit to FRAME, BOTTOM at the rear right and rear left, respectively.

Figure 4-29. ASF Unit Removal (1)

6. Tilting the paper support sub unit, release the hook fixing the ASF Unit to

FRAME, BOTTOM, and remove the ASF Unit toward the rear.

Figure 4-30. ASF Unit Removal (2)

Figure 4-31. ASF Unit Removal (3)

ASF viewed from the left

ASF viewed from the right

CBS Sems (3x6) SHAFT, MOUNT, CR

Paper Support Sub Unit

Hook in the ASF Unit

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 100

Figure 4-32. Check Points in ASF Assembly

CHECK

P O I N T

When installing the ASF assembly to FRAME, BOTTOM, make

sure the protrusion on the ASF fits in the installation hole in

FRAME, MIDDLE. (See Figure 4-32.)

When installing the ASF Unit, ensure the spur gear 32 in the

ASF Unit and the inner gear of the combination gear (14, 28) in

the DE Unit are meshed. (See Figure 4-32.)

When installing the ASF Unit, make sure the Hopper Assembly

is raised.

Stylus Photo 890

Stylus Photo 1290

Protrusion

Gear 32

Installation Hole

Gear 32

Combination Gear

14, 28

Installation Hole

Protrusion

Combination Gear

14, 28

CHECK

P O I N T

When connecting the cables for ASF HP sensor and MOTOR

ASSEMBLY, PF, set them in the cable clamp in the rear left part

of the ASF Unit as shown in the figure below:

Cable Clamp

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 101

4.2.10.1 SHAFT, ROLLER, LD Removal

1. Remove the ASF Unit. (Refer to Section 4.2.10.)

2. Releasing the hook on Gear, 32, remove the gear from SHAFT, ROLLER, LD.

Figure 4-33. SPUR GEAR, 32 Removal

3. Remove LEVER, HOPPER, RELEASE from the right end of SHAFT, ROLLER,

LD.

4. Remove HOLDER, SHEET, PAPER FEED from the right and left LD roller units.

5. Move the left LD roller assembly to the middle and then:

Stylus Photo 890:

Remove BUSHING, FIXING, LEFT from the left end of

SHAFT, ROLLER, LD

Stylus Photo 1290:

Remove the E-ring from the left end of SHAFT, ROLLER,

LD.

Figure 4-34. BUSHING, FIXING, SHAFT/E-Ring Removal

6. Move SHAFT, ROLLER, LD to the left.

7. Release the fixing tab in WHEEL, DETECTOR, and then remove WHEEL,

DETECTOR from SHAFT, ROLLER, LD.

Figure 4-35. WHEEL, DETECTOR Removal

HOLDER, SHEET,

PAPER FEED

LEVER, HOPPER,

RELEASE

Hook

SPUR GEAR, 32

Stylus Photo 890 Stylus Photo 1290

BUSHING, FIXING,

SHAFT, LEFT

E-Ring

WHEEL, DETECTOR Fixing Tab

SHAFT, ROLLER, LD

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 102

8. Release the Hopper Assembly from the pin in the top left corner of ASF, FRAME;

B in the order indicated with arrows in the figure below.

Figure 4-36. Hopper Assembly Removal (1)

9. Releasing the Hopper Assembly from the protrusion at the top right edge of

FRAME, ASF; B, detach the arm of the Hopper Assembly from the square cutout

in the right frame of FRAME, ASF; B.

Figure 4-37. Hopper Assembly Removal (2)

10. Using tweezers, remove the left and right compression springs (1.961) from the

Hopper Assembly and FRAME, ASF; B. (See Figure 4-38.)

11. Lifting up the right edge of SHAFT, ROLLER, LD a little, remove the shaft by

pulling it out to the right along with LD rollers. (See Figure 4-38.)

12. Remove the left LEVER, HOPPER, RELEASE from SHAFT, ROLLER, LD. (See

Figure 4-38.)

13. Remove the LD roller assemblies from SHAFT, ROLLER, LD. (See Figure 4-38.)

Step 2 Step 1

Pin in FRAME, ASF;B

Hopper Assembly

Hopper Assembly Cutout in FRAME, ASF; B

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 103

Figure 4-38. Hopper Assembly Removal/ASF Unit Disassembly

LEVER, HOPPER, RELEASE WHEEL

DETECTOR

Hopper Assembly

Gear, 32

FRAME, ASF;B

COMPRESSION SPRING, 1.961

Right LD Roller Assembly

BUSHING, FIXING, SHAFT, LEFT

Left LD Roller Assembly

LEVER, HOPPER, RELEASE

COMPRESSION

SPRING, 1.961

SHAFT,

ROLLER, LD

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 104

Figure 4-39. LEVER, HOPPER, RELEASE Installation

Figure 4-40. LD Roller Assembly Installation (1)

CHECK

P O I N T

While assembling the ASF Unit, be careful not to smear any

parts with oil on the cam parts. If oil gets other parts, it should

be wiped off.

When installing LEVER, HOPPER, RELEASE, set it in the

correct direction. (See Figure 4-39.)

Be sure to attach the following parts to SHAFT, ROLLER, LD

securely. (See Figure 4-38.)

- BUSHING, FIXING, SHAFT, LEFT (white plastic part)

- WHEEL, DETECTOR (black plastic part)

When installing the LD Roller Assemblies to SHAFT,

ROLLER, LD, make sure the black one (right LD Roller

Assembly) goes to the right.

When setting the right and left LD Roller Assemblies, align

their grooves with the rail rib in FRAME, ASF; B. (See Figure

4-40.)

LEVER, HOPPER,

RELEASE

Rail Rib in FRAME, ASF; B

Groove in the LD Roller

Assembly

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 105

Figure 4-41. LD Roller Assembly Installation (2)

Figure 4-42. Hook Fixing the LD Roller Assembly

Figure 4-43. Holding Compression Spring with the Hooks

CHECK

P O I N T

When installing the edge guide to the left LD Roller Assembly,

ensure that the rib in the LD Roller Assembly fits correctly into

the groove in the edge guide. (See Figure 4-41.)

Make sure that the right LD Roller Assembly is fixed with the

hook in FRAME, ASF; B. You can check its condition from the

back of the ASF Unit. (See Figure 4-42.)

Before assembling the ASF Unit, hold each compression spring

(1.961) with the hook of the spring bearing in the Hopper

Assembly. Then, after attaching the Hopper Assembly to

FRAME, ASF; B, release the springs from the hooks through

the cutouts in the back of the frame. (See Figure 4-43.)

Rib in the LD Roller Assembly

Groove in the Edge Guide

Hook in the FRAME, ASF; B

Hooks Compression

Spring 1.961

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 106

4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal

1. Remove the ASF Unit. (Refer to Section 4.2.10.)

2. Remove SHAFT, ROLLER, LD. (Refer to Section 4.2.10.1.)

3. Release the hooks in COVER, ROLLER, LD, RIGHT/LEFT (two hooks in each)

fixing itself to LD ASSEMBLY, RIGHT/LEFT, and then remove the COVER,

ROLLER, LD, RIGHT/LEFT.

4. Release the hooks in ROLLER ASSEMBLY, LD, RIGHT/LEFT (two hooks in

each) securing itself to LD ASSEMBLY, RIGHT/LEFT. Then remove ROLLER

ASSEMBLY, LD, RIGHT/LEFT.

Figure 4-44. Hooks to Release

Figure 4-45. ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal

Hooks in ROLLER

ASSEMBLY, LD, LEFT

Hooks in COVER,

ROLLER, LD, LEFT

C A U T I O N Do not touch the surface of the ROLLER ASSEMBLY, LD with

your bare hands.

Compression

Spring, 1.961

ROLLER ASSY.,

LD, LEFT

COVER,

ROLLER, LD,

ROLLER ASSY,

LD, RIGHT

Compression

Spring, 1.961

LD ASSY., RIGHT

LD ASSY., LEFT

COVER, ROLLER,

LD, LEFT

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 107

4.2.11 Carriage Unit Removal

1. Remove HOUSING. (Refer to Section 4.2.1)

2. Disconnect the head FFC from the printhead. (Refer to Section 4.2.4.)

3. Remove the Tension Spring 1.494 hanging SCALE, CR to the left side of

FRAME, TOP. Then remove SCALE, CR.

Figure 4-46. Remove the Tension Spring 1.491& CR Encoder Slit

4. Loosen the Timing Belt by pushing HOLDER, PULLEY, DRIVEN and disengage

the belt from the pulley of the CR motor. (Refer to Figure 4-20.)

5. Push PULLEY, DRIVEN down and remove it from HOLDER, PULLEY,

DRIVEN.

Figure 4-47. PULLEY, DRIVEN Removal

6. Remove the Timing Belt from PULLEY, DRIVEN.

7. Remove LEVER, PG by releasing its hooks from the cutouts in the right side of

FRAME, TOP. Then remove the LEVER, PG.

Figure 4-48. LEVER, PG Removal

SCALE, CR

TENSION SPRING, 1.494

PULLEY, DRIVEN

HOLDER, PULLEY,

FRAME, TOP

Hooks

LEVER, PG

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 108

8. Remove the torsion spring (63.7) hung onto FRAME, TOP and LEVER, PG.

Figure 4-49. LEVER, PG, SUB Removal

9. Remove LEVER, PG from LEVER, PG, SUB.

10. Release the hook fixing LEVER, PG, SUB to SHAFT, CR, GUIDE. Then remove

LEVER, PG, SUB and 1 leaf spring (6.2x0.15x11).

11. Remove 1 screw (CBS Tite Sems R2, 3x6) securing BUSHING, PARALLELISM

ADJUSTMENT, RIGHT to FRAME, TOP.

12. Rotate BUSHING, PARALLELISM ADJUSTMENT, RIGHT to align its notch

with the cutout in FRAME, TOP. Then remove the bushing.

Figure 4-50.

BUSHING, PARALLELISM ADJUSTMENT, RIGHT Removal

13. Remove SHAFT, CR, GUIDE from FRAME, TOP together with the Carriage

Unit.

14. Remove SHAFT, CR, GUIDE and the oil pad from the Carriage Unit.

BUSHING, PARALLELISM

ADJUSTMENT, RIGHT

CBS Tite Sems R2

Leaf Spring

LEVER, PG, SUB

TORSION SPRING, 63.7

C A U T I O N Do not touch SCALE, CR (linear scale) with your bare hands,

because if its surface is dirty or damaged, it will cause the

carriage to operate abnormally.

Do not touch SCALE, PF (loop scale) with your bare hands,

because if its surface is dirty or damaged, it will adversely

affect paper feeding accuracy.

A D J U S T M E N T

R E Q U I R E D

If you replace the Carriage Unit, perform the Platen Gap

Adjustment.

FRAME, TOP

Notch in BUSHING,

PARALLELISM

ADJUSTMENT,

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 109

4.2.12 BOARD ASSEMBLY, ENCODER Removal

1. Remove the head FFC. (Refer to Section 4.2.4.)

2. Pushing BOARD ASSEMBLY, ENCODER (linear encoder) to the rear, remove it

upward.

Figure 4-51. BOARD ASSEMBLY, ENCODER Removal

CHECK

P O I N T

When installing the Leaf Spring (6.2x 0.15x11), set it with its

convex side facing inward. Refer to Figure 4-49.

After setting SCALE, CR through the slot for the sensor in the

Carriage Unit, ensure that it is not in contact with either side of

the slot by viewing them from the side.

When installing SHAFT, CR, GUIDE, make sure that the oil

pad is set in the correct position.

Slit for the sensor

SCALE, CR

Carriage Unit

C A U T I O N When removing BOARD ASSEMBLY, ENCODER, be sure not

to force it out using a screw driver or equivalent. Otherwise, the

sensor mounting position in the Carriage Unit may be damaged.

When installing BOARD ASSEMBLY, ENCODER, be careful

not to mar SCALE, CR.

Make sure SCALE, CR and the sensor are not in contact.

BOARD ASSEMBLY, ENCODER

Carriage Unit

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 110

4.2.13 ROLLER, PF Removal

1. Remove HOUSING. (Refer to Section 4.2.1)

2. Remove the Panel Unit. (Refer to Section 4.2.3.)

3. Remove HOUSING, PANEL, LEFT. (Refer to Section 4.2.5.)

4. Remove the ASF Unit. (Refer to Section 4.2.10.)

5. Remove the Carriage Unit. (Refer to Section 4.2.11.)

6. Remove the three screws (CBS, 3x6) securing GUIDE PLATE, CR Unit to

FRAME, TOP. Then remove GUIDE PLATE, CR Unit.

Figure 4-52. GUIDE PLATE, CR Unit Removal

7. Remove PAPER GUIDE, RIGHT Unit and the five PAPER GUIDE, UPPER Unit

(eight for Stylus Photo 1290) from FRAME, TOP in the manner described below:

PAPER GUIDE, UPPER Unit

Remove the torsion spring (117.6). Then remove the unit to the rear.

PAPER GUIDE, RIGHT Unit

Remove the torsion spring (117.6). Then remove the unit to the front.

Figure 4-53. PAPER GUIDE, UPPER/RIGHT Unit Removal

8. Release the hook securing PAPER GUIDE, LEFT* to FRAME, TOP. Then shift

the unit to the left first, and remove it to the rear.

* PAPER GUIDE, LEFT is not assembled in Stylus Photo 1290.

CBS (3x6)

GUIDE PLATE, CR Unit

PAPER GUIDE,

UPPER Unit

TORSION SPRING, 117.6

PAPER GUIDE,

RIGHT Unit

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 111

9. Remove the three screws (CBS, 3x6) securing FRAME, TOP to the printer

mechanism. Then remove FRAME, TOP.

10. Remove the three screws (CBS, 3x6) securing FRAME, PAPER EJECT Unit to

the printer mechanism, and then remove FRAME, PAPER EJECT Unit.

Figure 4-54. FRAME, FRONT/FRAME, PAPER EJECT Removal

11. Remove PAPER GUIDE, FRONT from ROLLER, PF by releasing its two U-

shaped forks fixing ROLLER, PAPER EJECT.

12. Remove CONTACT SPRING, PAPER EJECT hung to FRAME, LEFT and

ROLLER, PAPER EJECT.

Figure 4-55. PAPER GUIDE, FRONT Removal

FRAME, FRONT

CBS (3x6)

FRAME, PAPER

EJECT Unit

CBS (3x6)

ROLLER, PAPER

PAPER GUIDE,

ROLLER,

U-Shaped

Forks

U-Shaped

Forks

CONTACT

SPRING, PAPER

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 112

13. Raise 2 bushings (6) attached to the right and left ends of ROLLER, PAPER

EJECT to release them from FRAME, LEFT and FRAME, MIDDLE. Them

remove ROLLER, PAPER EJECT.

Figure 4-56. ROLLER, PAPER EJECT Removal

14. Remove 1 screw (CBS, 3x6) securing BRACKET, BOARD ASSEMBLY to

FRAME, LEFT together with BOARD ASSEMBLY, ENCODER (PF Encoder

Sensor). Then remove BRACKET, BOARD ASSEMBLY.

Figure 4-57. PF Encoder Removal

15. Remove CONTACT SPRING, PF hung to ROLLER, PF and FRAME, BOTTOM.

(Refer to Figure 4-56.)

16. Unhook BUSHING, 12, LEFT attached to the left end of ROLLER, PF and then

turn the bushing until it is aligned with the cutout in FRAME, LEFT.

17. Release ROLLER, PF from the hook in PAPER GUIDE, REAR, and then remove

ROLLER, PF.

Figure 4-58. ROLLER, PF Removal

CONTACT SPRING, PF

BUSHING, 6 ROLLER, PAPER

CBS (3x6)

BRACKET, BOARD

ASSEMBLY C A U T I O N During disassembly/assembly, be careful not to bend or damage

SCALE, PF.

Do not touch SCALE, PF with your bare hands. Also, be careful

not to damage its surface since it is coated with special material

to improve accuracy in paper feeding.

Avoid touching the tooth plane of SPUR GEAR 76 attached to

the left end of ROLLER, PF. (See Figure 4-58.)

SPUR GEAR, 76

BUSHING, 12, LEFT

ROLLER, PF

Hook in PAPER

GUIDE, REAR

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 113

4.2.13.1 SCALE, PF Installation

This section describes how to install the following parts:

SCALE, PF (Loop Scale)

BRACKET, SCALE

TAPE, D50 (Double-sided adhesive tape)

1. Get “Mounting Plate Scale Attachment tool”. (AS Tool code: 1051765)

2. Place BRACKET, SCALE on the tool with its taped side facing upward.

3. Peel off the protection sheet from the tape on BRACKET, SCALE.

Figure 4-60. Pre-operation for BRACKET, SCALE Installation

CHECK

P O I N T

When installing PAPER GUIDE, RIGHT to FRAME, TOP

with the torsion spring, insert PAPER GUIDE, RIGHT Unit

from the front making sure the PE sensor lever is set in the hole

of the paper guide.

Figure 4-59. PAPER GUIDE, RIGHT Installation

When mounting the torsion springs (117.6) to PAPER GUIDE,

UPPER / PAPER GUIDE, RIGHT, fit the arm of each torsion

spring (117.6) in the groove of the corresponding paper guide.

When installing CONTACT SPRING, PF, fit the loop of the

spring in the groove near the left end of ROLLER, PF.

If you replace SCALE, PF (loop scale) or SPUR GEAR (76),

you are required to install a new SCALE, PF using the specified

tools. (Refer to the next section.)

TORSION SPRING,

117.6

PE Sensor Lever PAPER GUIDE,

RIGHT Unit

Protection Sheet

Tool (Code: 1051765)

BRACKET,

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 114

4. Set SCALE, PF onto BRACKET, SCALE with its front side facing downward.

Figure 4-61. Attaching SCALE, PF

5. Remove the base sheet of TAPE, D50 and stick it to SCALE, PF.

Figure 4-62. TAPE, D50 Installation

6. Peel off the protection sheet from TAPE, D50 on SCALE, PF.

C A U T I O N Do not touch the following areas:

- Inner side of the SCALE, PF’s shaft hole through which the

PF Roller Shaft is installed.

- Printed face of SCALE, PF

If BRACKET, SCALE is not aligned with the circle printed on

SCALE, PF, it should not be a problem.

Tool

(Code: 1051765)

SCALE,

Set the scale’s front side

facing downward.

Tool (Code: 1051765) C A U T I O N If TAPE, D50 is not aligned with the circle printed on SCALE,

PF, it should not be a problem.

TAPE, D50 Protection Sheet

SCALE,

Tool (Code: 1051765)

Protection Sheet

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 115

7. Fit the round cutouts in SCALE, PF to the protrusions on SPUR GEAR (76)

making sure the scale and the gear are parallel. But note you don’t attach the scale

to the gear yet.

8. Attach SCALE, PF to the gear using “Scale PF unit Assembling tool” (AS tool

code: 1051767).

Figure 4-63. Loop Scale Installation

SPUR GEAR, 76 Protrusions

Tool (#1051767)

SCALE, PF

CHECK

P O I N T

Check that the protrusions on the gear (76) are sticking out

from the cutouts in the scale.

Ensure SCALE, PF is free form any dirt or damage.

Cutout

Protrusion

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 116

4.2.14 MOTOR ASSEMBLY, PF Removal

1. Remove HOUSING. (Refer to Section 4.2.1)

2. Remove the ASF Unit. (Refer to Section 4.2.10.)

3. Remove the Carriage Unit. (Refer to Section 4.2.11.)

4. Remove ROLLER, PF. (Refer to Section 4.2.13.)

5. Remove 1 plane washer (4.1x0.5x4.5) fixing the combination gear (13.5, 30) to

FRAME, LEFT, and then remove the combination gear.

Figure 4-64. Removing COMBINATION GEAR and PLANE WASHER

6. Remove 1 screw (CBS, 3x6), plane washer (3.3x0.5x8), and SCREW,

MOUNTING, PF that are securing MOTOR ASSEMBLY, PF to FRAME, LEFT.

Then remove MOTOR ASSEMBLY, PF.

Figure 4-65. PF Motor Removal

COMBINATION

GEAR, 13.5, 30 PLANE WASHER

(4.1x0.5x6.5)

C A U T I O N Be careful not to damage the teeth of COMBINATION GEAR,

13.5, 30.

A D J U S T M E N T

R E Q U I R E D If you replace MOTOR ASSEMBLY, PF, adjust backlash for the

PF pinion and SPUR GEAR, 76. (See Chapter 5.)

MOTOR ASSEMBLY, PF

SCREW, MOUNTING, PF

CBS (3x6), PLANE WASHER

EPSON Stylus Photo 890/1280/1290 Revision C

DISASSEMBLY AND ASSEMBLY Disassembly Procedures 117

4.2.15 PE Sensor Unit Removal

1. Remove HOUSING. (Refer to Section 4.2.1)

2. Remove the ASF Unit. (Refer to Section 4.2.10.)

3. Remove the DE Unit. (Refer to Section 4.2.9.)

4. Remove PAPER GUIDE, RIGHT Unit. (Refer to Section 4.2.13.)

5. Remove the timing belt. (Refer to Section 4.2.11.)

6. Release 2 hooks securing the PE sensor unit to FRAME, TOP, lift up the PE

sensor unit, and then remove it to the rear.

Figure 4-66. PE Sensor Unit Removal

CHECK

P O I N T When installing the PE Sensor Unit, ensure that the sensor lever

is set in the square hole in PAPER GUIDE, RIGHT Unit. (See

Figure 4-59.)

PE Sensor Unit

Hooks

CHAPTER

ADJUSTMENT

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Overview 119

5.1 Overview

This chapter describes adjustments required if the printer is disassembled and

assembled for repair or service.

5.1.1 Adjustment Items

Table 5-1 lists the required adjustments for this printer. If any of the services listed in

the table below is carried out, all adjustments corresponding to the service items need

to be performed to ensure proper operations for this printer.

The table below lists the type of repair and required adjustments in the order to be

made.

Table 5-1. Adjustment Item

No. Item When to perform

1Parallelism Adjustment

(without the adjustment

program)

• When you replace or remove the carriage

guide shaft.

• When you replace or remove the parallelism

adjustment bushing.

2Backlash Adjsutment

(without the adjustment

program)

• When you replace the PF motor.

• When you remove the Gear 76.

3Ink Charge • When you replace or remove the printhead.

4Head ID Input • When you replace the printhead.

• When you replace the main board.

NOTE: New head ID is not written until

EEPROM is reset.

6Bi-Directional Adjustment • When you replace the printhead.

• When you replace the main board.

• When you replace the CR motor assembly.

• When you remove the carriage unit.

7Input USB ID • When you replace the main board.

8Protection Counter Clear • When you replace the waste ink pad.

Table 5-2. Type of Repair and Required Adjustment

No. Type of repair Required adjustment

1 Printhead removal 1. Head Cleaning

2. Bi-Directional Adjustment

2Printhead replacement

1. Head ID Input

2. Ink Charge

3. Nozzle Check

4. Bi-Directional Adjustment

3 Main board replacement

1. Head ID Input

2. Bi-Directional Adjustment.

3. Input USB ID

4. Protection Counter Clear

4Carriage unit replacement or removal 1. Parallelism Adjustment

2. Bi-Directional Adjustment

5 CR Motor replacement 1. Bi-Directional Adjustment

6Printer mechanism replacement

1. Head ID Input

2. Ink Charge

3. Bi-Directional Adjustment

7 Waste Ink Pad replacement 1. Protection Counter Clear

Replacement or removal of the

following parts.

1) PF motor

2) Gear 76

3) PF roller assembly

1. Backlash Adjsutment

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Overview 120

5.1.2 Adjustment Tools

The table below shows adjustment tools you need for servicing the Stylus PHOTO

1280.

Table 5-3. Adjustment Tools

Tool Type of adjustment Specifications

Thickness Gauge Parallelism Adjustment Thickness: 1.14 mm

Microscope Backlash Adjsutment Magnified ratio: x 15

Minimum scale: 0.1mm

Service Program • Ink Charge

• Head ID Input/Check

• Head Cleaning

• Refurbishment for DOA

• USB ID Input/Check

• Bi-Directional Adjustment

• Protection Counter Clear

• Nozzle Check

A 3.5- inch HD floppy disk

(Choose either Win.95 or 98)

C A U T I O N Never use a deformed (twisted or warped) or rusty thickness

gauge.

Wipe off any dirt, grease, or foreign matter on the thickness

gauge before you use it.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 121

5.2 Adjustment

This section explains the procedure for each adjustment.

5.2.1 Parallelism Adjustment

When you remove/replace the carriage unit, make a parallelism adjustment because

you need to remove the parallelism adjustment bushings. This adjustment enables you

to provide an appropriate distance between the printhead and platen as well as to set the

CR guide shaft in parallel with the paper.

Using the PG adjustment tool is the best way to adjust the PG (Platen Gap) as accurate

as possible. You may substitute a thickness gauge (1.14mm) for the PG adjustment

tool, however, the accuracy of PG may decline comparing to using the PG adjustment

tool.

5.2.1.1 Using PG Adjustment Tool

1. Install the right and left Parallel Adjustment Bushings to the printer mechanism by

aligning their marks with the notches on the frames.

Figure 5-1. Initial Position of the Parallelism Adjustment Bushing

2. Set the PG Lever to the front side (the “0” position).

3. If the Carriage Unit is locked, unlock it by pushing down the lock lever using

tweezers.

C A U T I O N Do not scratch the special coated surface of the PF roller

assembly and rib surface of the front paper guide; B.

Before starting the adjustment, wipe the PG adjustment tool

and thickness gauge with a clean cloth moistened with alcohol.

Be careful not to damage the printhead surface or leave any dirt

on it. (Make sure the PG adjustment tool and thickness gauge is

free from any stain, and also do not touch the head surface with

the thickness gauge.

Be sure to perform the Printhead Rmoval with the ink

cartridges installed.

Mark

Notch on the frame

To the rear

(= gap is narrowed)

To the front

(= gap is widen)

Frame

Right Parallelism

Adjustment Bushing

PG Lever

(+)

(0)

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 122

4. Move the Carriage to the center of the printer mechanism. Put the PG adjustment

tool right on the rightmost rib of Paper Guide Front.

Figure 5-2. Setting PG Adjustment Tool

5. Set the PG Lever to the rear side (the “+” position).

6. Move the Carriage to right until it covers the right C part of the PG adjustment

tool. Make sure the right edge of the printhead frame is placed right above the C

part of the PG adjustment tool.

Set the PG Lever to the front side (the “0” position).

Table 5-4. Carriage on PG Adjustment Tool

7. Set the Right Parallel Adjustment Bushing forward. By moving the bushing to the

back one notch at a time, find the position where the printhead touches the PG

adjustment tool. From the touching point, move the bushing forward (Wider PG

direction) by one notch.

CHECK

P O I N T

Make sure to align the edge of the PG adjustment tool on the

rightmost part of Front Paper Guide with the jut out portion of the

tool Part) placed on the rear ditch of Front Paper Guide.

Front Paper Guide

Set PG Adjustment tool right on

the rightmost rib of Paper Guide Front.

C Part

A Part

B Part

(narrow side)

B Part

(wide side)

C A U T I O N To move the Carriage Unit, pull the timing belt with your hand.

Be careful not to damage the CR scale (linear encoder).

CHECK

P O I N T

Platen Gap becomes wider when moving the Parallel Adjustment

Bushing forward and becomes narrower when moving

backward.

Make a PG adjustment at least 3 times, both sides and repeat one

side.

Make sure a peak portion of the frame engages with a valley

portion of Parallel Adjustment Busing.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 123

8. Perform the PG adjustment to the left side.

Move the Carriage to the center of the printer mechanism. Put the PG adjustment

tool right on the leftmost rib of Paper Guide Front.

9. Set the Left Parallel Adjustment Bushing forward. By moving the bushing to the

back one notch at a time, find the position where the printhead touches the PG

adjustment tool. From the touching point, move the bushing forward (Wider PG

direction) by one notch

10. Move the PG lever to the rear (+).

11. Move the Carriage Unit over the PG adjustment tool on the left.

12. Bring the PG lever to the front (0).

13. Make the adjustment as in the same manner as in step 6 and 7.

14. Bring the PG lever to the rear (+).

15. Move the carriage back over the PG adjustment tool on the right.

16. Move the PG lever back to the front (0).

17. Make the adjustment again on the Right Parallel Adjustment Bushing. If the result

is good, the adjustment is completed.

18. Fasten the bushing screws on both sides.

CHECK

P O I N T

Make sure to align the edge of the PG adjustment tool on the

leftmost part of Front Paper Guide with the jut out portion of the

tool (bottom part) placed on the rear ditch of Front Paper Guide.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 124

5.2.1.2 Using Thickness Gauge

Using the PG adjustment tool is the best way to adjust the PG (Platen Gap) as accurate

as possible. You may substitute a thickness gauge (1.14mm) for the PG adjustment

tool, however, the accuracy of PG may decline comparing to using the PG adjustment

tool.

1. Follow Step 1 to 3 in 5.2.1.1“Using PG Adjustment Tool” on page -121.

2. Bring the Carriage to the center of the printer mechanism. Then place the thickness

gauges (1.14 mm) on the front paper guide aligning them with the right and left

square cutouts in the front paper guide. (See Figure 5-3.)

Figure 5-3. Placing the Thickness Gauge

3. Move the Carriage Unit over the gauge on the right.

4. If the printhead does not touch the gauge, turn the bushing to the rear to make the

printhead touch the gauge and then, from the touching position, bring the bushing

back by one notch. On the other hand, if the printhead already touches the gauge,

turn the bushing to the front to make the printhead touch the gauge, and then push

the bushing back by one notch.

5. Move the PG lever to the rear (+).

6. Move the carriage unit over the thickness gauge on the left.

7. Bring the PG lever to the font (0).

8. Make the adjustment as in the same manner as in step 4.

9. Bring the PG lever to the rear (+).

10. Move the carriage back over the thickness gauge on the right.

11. Move the PG lever back to the front (0).

12. Make the adjustment again on the right parallelism adjustment bushing. If the

result is good, the adjustment is completed.

13. Fasten the bushing screws on both sides.

Cutout

Thickness

Gauge

Carriage Unit

Left Edge Right Edge

(Home Position Side)

Front Paper Guide

PF Roller

Front Paper Guide

Gauge Aligning Position

Cutout

• Set the gauge on the horizontal top of

the ribs.

• Bring the rib tops to the middle of

the gauge.

CHECK

P O I N T

To move the carriage unit, pull the timing belt with your hand.

Be careful not to damage the CR scale (linear encoder).

CHECK

P O I N T

Platen Gap becomes wider when moving the Parallel Adjustment

Bushing forward and becomes narrower when moving

backward.

Make a PG adjustment at least 3 times, both sides and repeat one

side.

Make sure a peak portion of the frame engages with a valley

portion of Parallel Adjustment Busing.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 125

5.2.2 Backlash Adjsutment

This section describes Backlash Adjsutment that is to be made after removing the PF

motor. This adjustment provides an appropriate backlash (= 0.1 mm or less) for PF

motor pinion gear and the gear (76). You need to make this adjustment when you

replace any of the following parts:

PF motor assembly

Gear 76

PF roller unit

Before you begin, make sure the following parts are removed:

COMBINATION GEAR, 13.5, 30

TRAY, ABSORBER ASSEMBLY

HOUSING, PANEL, LEFT

HOUSING, REINFORCING, LEFT

See the following figure for locations.

Figure 5-4. Parts to Remove

C A U T I O N Failure in making this adjustment causes the printer to operate

abnormally as described below:

If backlash is too little:

1. The PF motor dose not rotate correctly and paper feeding

accuracy declines.

2. Gear 76 and the PF pinion gear make abnormal noises

during printing.

If backlash is too large, the PF motor dose not rotate correctly

and paper feeding accuracy declines.

C A U T I O N Be careful not to damage the PF Loop scale when removing

COMBINATION GEAR, 13.5, 30.

HOUSING,

REINFORCING, HOUSING, PANEL,

LEFT

COMBINATIO

N GEAR, 13.5,30

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 126

1. Loosen the screw (CBS, 3x6) securing the PF motor assembly to the left frame by

rotating it half.

2. Holding the PF motor assembly, get the pinion mesh the gear 76.

3. Press the gear 76 by the point 2 in the figure below lightly and release it to ensure

the gear comes back to its original position.

Figure 5-5. Checking for Gear Engagement

4) Press the gear by the indicated positions 1 and 3 (each point is 2.5 cm apart from

the point 2) and check that the gear squeaks at each point. If not, start over from

the step 2.

5. Fasten the screw (CBS, 3x6) to secure the PF motor assembly to the left frame.

6. Press the gear 76 by the point 2 and release it again to ensure it returns to its

original position.

7. Using a microscope, check for a correct backlash. Backlash at its minimum point

should be 0 - 0.1 mm. If larger, repeat the adjustment.

Figure 5-6. Checking for the Backlash

C A U T I O N When pressing the gear 76 together with the PF scale, be careful

not to damage or stain the scale.

PINION

GEAR, 76

PINION

0 - 0.1 mm

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 127

5.2.3 Adjustment Program Feature

This adjustment program, which is available for both Stylus Photo 890 and Stylus

Photo 1290, consists of two independent main programs; Individual Adjustment

Program and Sequential Repair Program. The basic adjustment items you can perform

using this program are as shown in the following tables:

Individual Adjustment Service Program

This program can independently adjust the service items. The adjustment/

maintenance items are shown below.

Figure 5-7. Independent Adjustment Program Main Menu

Sequential Repair Service Program

Table 5-5. Individual Adjustment Program

No. Service Items Adjustment Items

1Adjustment Head ID Input

Bi-Directional Adjustment

Input USB ID

2 Maintenance Head Cleaning

Ink Charge

Refurbishment for DOA

Protection Counter

3Appendix CSIC Information

EEPROM Date

4Check Pattern Printing A4 Normal Paper Printing

Table 5-6. Sequential Repair Service Program

No. Repair Items Adjustment Items

1 Printhead Removal 1. Head Cleaning

2. Bi-Directional Adjustment

2Printhead Replacement 1. Head ID Input

2. Ink Charge

3. Nozzle Check

4. Bi-Directional Adjustment

3 Main Board Replacement 1. Head ID Input

2. Bi-Directional Adjustment

3. Input USB ID

4. Protection Counter Clear

4Carriage Unit Removal/Replacement 1. Bi-Directional Adjustment

5 CR Motor Replacement 1. Bi-Directional Adjustment

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 128

Figure 5-8. Sequential Repair Service Program Main Menu

5.2.3.1 How to Install the Program

Before installing the program, note the points below:

Use Windows 95 or higher.

Use LPT 1 only as the printer port. (Use a USB interface cable only when

performing Input USB ID .)

Install the program in the order listed below:

1. According to the version of your computer, insert either “Windows 95” or

“Windows 98” floppy disk to your computer or select Service Program in the

CD-ROM.

2. Click Stylus Photo 890/1290 95 or 98.exe. The program automatically start and

the initial window appears on the screen.

5.2.3.2 How to Uninstall the Program

Access Control Panel> Add/Remove Programs and uninstall the program.

5.2.4 Starting the Service Program

5.2.4.1 Adjusting Program Initial Setting

In order to start the program, you have to input the following information below:

6Printer Mechanism Replacement 1. Head ID Input

2. Ink Charge

3. Nozzle Check

4. Bi-Directional Adjustment

7 Waste Ink Pads Replacement 1. Protection Counter

8Clogged Nozzle Recovery 1. Nozzle Check

Table 5-6. Sequential Repair Service Program

No. Repair Items Adjustment Items

C A U T I O N While you are running the service program on Windows 95, you

can not use EPSON Status Monitor. Therefore, close the printer

window on the task bar before you start the program.

If you can not start the program because LPT1 is set to ECP

Printer Port, turn it off in the order below:

1. Delete all printer drivers.

2. Access Control Panel>System>Device Manager>Ports and

delete ECP Printer Port.)

3. Reboot the computer.

If you leave the printer in a non-printing status for 5 minutes or

more, the carriage automatically returns to home position. In this

case, you need to reboot the computer to run the program.

Do not change the setting for Font size in Display settings.

Be sure to connect a parallel interface cable to the printer before

you start the program. Otherwise, the program freezes.

Do not send any command to the printer during a check pattern

print.

While the service program is running, if the printer is turned off

or the interface cable is disconnected, you need to launch the

program again.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Adjustment 129

Model Name (Stylus PHOTO 890/1280/1290)

Stylus PHOTO 1280 is for EAI only.

Port Selection (LPT1/2/3)

Destination (Standard)

Program Type (Individual Adjustment Program/ Sequential Repair Service

Program)

1. When you start the service program, the initial window appears:

Figure 5-9. Initial Window

2. Select Model Name:

Figure 5-10. Model Selection

3. Select Port.

Figure 5-11. Port Selection

4. Select Destination.

Figure 5-12. Destination Selection

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Individual Adjustment Program 130

5. Select Program Type.

Figure 5-13. Program Type Selection

6. After choosing four items on the window, click OK. If you want to exit the

program, click Quit.

5.3 Individual Adjustment Program

5.3.1 Head ID

This adjustment needs to be executed when you replace any of the following parts:

Printhead

Main Board

Printer mechanism

NOTE: In this section, Stylus Photo 890 program windows are used as examples.

5.3.1.1 Head ID Input

The Head ID is written to the EEPROM on the Main Board with this function.

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Head ID from the main menu.

Standard

C A U T I O N If you replace the printhead, Main Board, or printer mechanism,

make this adjustment prior to any other adjustment items.

This adjustment is very important to keep good printer

performance. If an wrong ID is input, the printer will exhibit a

dot missing problem or does not print at all.

After making this adjustment, perform all other necessary

adjustments listed in Table 5-2.

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Individual Adjustment Program 131

3. The Head ID Adjustment window appears. Select Input Head ID and click OK.

Figure 5-14. Head ID Adjustment Window

4. The Input Head ID window appears. Enter 13 digit Head ID and click OK.

Figure 5-15. Head ID Input

5. The following message appears on the window and the Head ID Input is

completed.

Figure 5-16. Head ID Input Completed

6. When you exit this window, click Quit. The exit window appears. Click Quit and

the program is closed. If you want to continue, click Next.

Figure 5-17. Exit Window

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Individual Adjustment Program 132

5.3.1.2 Head ID Check

You can find the Head ID on the following units.

Where to Find the Head ID

The 13 digit Head ID is written on the label inside the printhead.

The Head ID begins from the upper left to the right. Therefore the Head ID is

“W23U3WYXYXOKA” in this case.

Figure 5-18. Head ID Sample

Check Current Head ID

You can confirm the present Head ID written in the EEPROM by following the

procedures below.

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Head ID from the main menu.

3. The Head ID Adjustment window appears. Select Check Head ID and click

OK.

Figure 5-19. Head ID Adjustment Window

4. The current Head ID is displayed.

Figure 5-20. Current Head ID Check

W23U3

WYXYX

OKA

EPSON Stylus Photo 890/1280/1290 Revision C

ADJUSTMENT Individual Adjustment Program 133

5. To exit or continue the program, refer to Figure 5-17.“Exit Window” on

page -131.

5.3.2 Bi-Directional Adjustment

This adjustment is required when line misalignment (incorrect print timing) between

the two directions (from left to right and vice versa) is noticed. The adjustment value is

memorized in EEPROM on the main board. You need to make this adjustment under

any of the following conditions.

When you:

Replace the printer mechanism.

Replace the main board.

Remove the CR motor.

Remove the CR unit.

NOTE: You are recommended you should make this adjustment if you disassemble the

carriage mechanism.

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Bi-D from the main menu.

3. The Bi-Directional Adjustment window appears. Select Print Bi-D Adjustment

Pattern and click OK.

Figure 5-21. Bi-Directional Adjustment Window

4. Click OK, and then the Bi-D Adjustment Patterns will automatically be printed.

Figure 5-22. Bi-Directional Adjustment Pattern Printing

C A U T I O N The Head ID Input to EEPROM is not effective until the printer is

next turned on.

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ADJUSTMENT Individual Adjustment Program 134

5. The Bi-Directional Adjustment patterns are printed as follows.

Figure 5-23. First Bi-Directional Adjustment Pattern Sample

NOTE: To save sheets of paper during Bi-D Pattern Printing, you can set an initial

printing start position by using the track bar on the window. The printing start

position can be determined according to the track bar you set. With this function,

you can print out the Bi-D Adjustment Patterns twice on an A4 size sheet. (Refer

to Figure 5-25)

6. During the adjustment printing, using the track bar is recommended for the second

or later test printing to save paper. The track bar can be set to 8 levels. For the

second printing, however, setting the bar to the right end is recommended. After

setting the bar, click OK.

Figure 5-24. Second Bi-Directional Adjustment Pattern Printing

7. The second Bi-D Adjustment Patterns are printed as follows.

Figure 5-25. Second Bi-Directional Adjustment Pattern Sample

Set the track bar to

the right end.

The second print

start position

After First Pattern Printing

After Second Pattern Printing

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ADJUSTMENT Individual Adjustment Program 135

8. The following message appears on the window and the Bi-Directional

Adjustment Pattern Printing is completed.

Figure 5-26. Bi-Directional Adjustment Pattern Printing Completed

9. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.2.1 Input Bi-D Adjustment Value

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Bi-D from the main menu.

3. The Bi-Directional Adjustment window appears. Select Input Bi-D Adjustment

Value and click OK.

Figure 5-27. Bi-Directional Adjustment Window

4. The Input Bi-D Adjustment Value window appears and the current Bi-D

Adjustment values are displayed. Referring to the printout, input the setting values

using the ↑ or ↓ key or directly type it in.

Figure 5-28. Input Bi-D Adjustment Value Window

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ADJUSTMENT Individual Adjustment Program 136

5. When you adjust the setting values, make sure that the Bi-D gap becomes less than

60 µ m.

Figure 5-29. Bi-D Adjustment Printing Example

6. After changing the values, click OK. The following message appears on the

window and the Input Bi-D Adjustment Value is completed.

Figure 5-30. Input Bi-D Adjustment Value Completed

7. To continue with other mode, click Previous and select a different item. Print the

Bi-D Adjustment Patterns if necessary.

8. Repeat the steps from 1 to 7 until you get the best result.

9. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.2.2 Check Present Adjustment Data

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Bi-D from the main menu.

3. The Bi-Directional Adjustment window appears. Select Check Present

Adjustment Data and click OK.

Figure 5-31. Bi-Directional Adjustment Window

Bi-d

MS Color

data = -14 Bi-D Gap

Less than 60 µm

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ADJUSTMENT Individual Adjustment Program 137

4. Click OK and the present adjustment values are displayed.

Figure 5-32. Present Adjustment Data Display

5. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.3 Input/Check USB ID

You are required to perform Input USB ID whenever you replace the main board.

The Stylus PHOTO 1280 is equipped with the USB interface as standard. In the

Windows 98 or iMAC environment, the USB port driver controls its device using the

USB ID stored in EEPROM. Therefore, you need to input a unique USB ID for a new

main board.

During a repair service, a new USB ID is formed with a 10-digit product serial number

and the rest (8-digit) produced by the service program. You need to input the new USB

ID in EEPROM.

C A U T I O N The setting value is not effective until the printer is turned off and

back on. It is because the setting value is stored in EEPROM when

the printer is turned off.

C A U T I O N You need to input a new USB ID for the following reasons:

1. If the main board is replaced, the ID for the board is no longer

used.

2. If the ID is in conflict with an ID used for any other peripheral

devices, the printer can not be connected with a USB interface.

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ADJUSTMENT Individual Adjustment Program 138

5.3.3.1 Input USB ID

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select USB ID from the main menu.

3. The USB ID Adjustment items window appears. Select Input USB ID .

Figure 5-33. Input USB ID Selection

4. Input a10-digit serial number and click OK. The new USB ID number is displayed.

Figure 5-34. USB ID Input Window

5. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.3.2 Check USB ID

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select USB ID from the main menu.

3. The USB ID Adjustment items window appears. Select Check USB ID and click

OK.

Figure 5-35. Check USB ID Selection

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ADJUSTMENT Individual Adjustment Program 139

4. A present USB ID is displayed.

Figure 5-36. Present USB ID Displayed

5. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.4 Maintenance

5.3.4.1 Head Cleaning Operation

Head Cleaning is more powerful than the head cleaning performed by pressing the

cleaning button. It is effective when a dot missing problem occurs.

1. Set A4 Normal Paper on the ASF.

2. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

3. Select Maintenance Items.

4. Select Head Cleaning from the main menu.

5. The Head Cleaning window appears. Click OK and then, the printer will start the

Head Cleaning operations.

Figure 5-37. Head Cleaning Window

C A U T I O N Be sure to input the correct printer serial number. If you input a

wrong number, it is still accepted.

Confirmation of USB port function is effective only under the

Windows 98 environment.

The new ID is not effective until the printer is turned on since the

new ID is stored in EEPROM when the printer is turned off.

C A U T I O N Head Cleaning function uses the following amount of ink at a time:

[Stylus Photo 890]

Black ink cartridge: Approximately 1/24

Color ink cartridge: Approximately 1/13

[Stylus Photo 1290]

Black ink cartridge: Approximately 1/24

Color ink cartridge: Approximately 1/20

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ADJUSTMENT Individual Adjustment Program 140

6. When the cleaning is completed, the following message appears on the window.

Figure 5-38. Head Cleaning Completed

7. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.5 Ink Charge Operation

If the Head Cleaning is not powerful enough to solve the dot missing problem,

perform Ink Charge that consumes more ink.

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Maintenance Items.

3. Select Ink Charge from the main menu.

4. The Ink Charge window appears. Click OK and then, the printer begins the ink

charge operation.

Figure 5-39. Initial Ink Charge Window

C A U T I O N The initial ink charge operation consumes the following amount

of ink at a time:

[Stylus Photo 890]

Black ink cartridge: Approximately 1/8

Color ink cartridge: Approximately 1/4

[Stylus Photo 1290]

Black ink cartridge: Approximately 1/8

Color ink cartridge: Approximately 1/7

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ADJUSTMENT Individual Adjustment Program 141

5. The following message appears. After replacing both black and color I/Cs with

new ones, click Yes. The printer begins the ink charge operation.

Figure 5-40. I/C Replacement Message

6. When the ink charge is completed, the following message appears on the window.

Figure 5-41. Ink Charge Replacement Completed

7. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

5.3.6 Refurbishment for DOA

This function is used when the cavity of the printhead and cap assembly needs to be

cleaned.

1. Set the dummy cartridges I/Cs filled with S46 to the CR unit.

2. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

3. Select Maintenance Items.

Yes No

C A U T I O N After carrying out this function, replace the Waste Drain Ink

Pad with a new one and reset the Waste Drain Ink Pad Counter

(Protection Counter). If not, ink or S46 liquid may leak from the

ink pad during the transportation.

Prepare the following tools:

1. Dummy Ink Cartridges

2. Injector

3. S46 Liquid

This operation is available only once. Do not use this function

repeatedly. Repetition of this function may cause overflow of the

ink and S46 liquid.

When you refurbish a repairing product using the program, do it

on your responsibility.

When you charge S46 liquid into dummy ink cartridges with the

injector, make sure to full the cartridges up with the S46 liquid.

If not, the printhead may not be completely cleaned in this

operation.

Keep the S46 liquid and dummy ink cartridges clean even not in

use.

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ADJUSTMENT Individual Adjustment Program 142

4. Select Refurbishment for DOA from the main menu and click OK.

Figure 5-42. Transportation Liquid Exchange Window

5. Click OK and the Transportation Liquid Exchange Operation will start.

Figure 5-43. Transportation Liquid Exchange Operation

6. To exit or continue the program, click Quit on the lower left. Refer to Figure

5-17.“Exit Window” on page -131.

7. Remove the dummy I/Cs from the CR unit.

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ADJUSTMENT Individual Adjustment Program 143

5.3.7 Protection Counter

This function enables you to check the current value for the protect counter A. The

protect counter A monitors the level of waste ink flown into the waste ink absorber. If

the wasted ink level excesses the limit, it will overflow into the printer. To avoid this,

the printer indicates “Maintenance Request” when the counter reaches to the limit and

stops accepting any data except for the power signal from the control panel. During the

repair service, you are required to replace the waste ink absorbers and reset the

protection counter. For the waste ink absorber replacement procedure, see

4.2.5“TRAY, ABSORBER ASSEMBLY Removal” on page -89. Note you can also

reset the protection counter by the panel operation.

5.3.7.1 Check the Present Counter Value

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Maintenance Items.

3. The Protection Counter Maintenance window appears. Select Check the

Present Counter Value and click OK.

Figure 5-44. Protection Counter Maintenance Window

4. The Check the Protection Counter window appears. Click OK, and the current

protection counter value will be displayed.

Figure 5-45. Protection Counter Value Displayed

5. To return to the Check the Protection Counter window, click Previous.

6. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

5.3.7.2 Clear the Protection Counter Value

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Maintenance Items.

C A U T I O N Protection Counter does not clear “Maintenance Request” but

resets the protection counter only.

To clear “Maintenance Request”, refer to Chapter 1/Section

1.4.4 or Chapter 3/Section 3.1.1.6.

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ADJUSTMENT Individual Adjustment Program 144

3. The Protection Counter Maintenance window appears. Select Clear the

Protection Counter Value and click OK.

Figure 5-46. Protection Counter Maintenance Window

4. The Clear the Protection Counter window appears and click OK,.

Figure 5-47. Clear the Protection Counter Window

5. The following message is displayed. After replacing the Waste Ink Pad with a new

one, click (Y).

Figure 5-48. Waste Ink Pad Replacement Massage

6. The protection counter is cleared and the following message is displayed.

Figure 5-49. Counter Value Display Window

7. To return to the Check the Protection Counter window, click Previous.

8. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

C A U T I O N Whenever you reset the protection counter, make sure to replace

the Waste Ink Pad with a new one. (Refer to TRAY, ABSORBER

ASSEMBLY Removal).

Yes No

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ADJUSTMENT Individual Adjustment Program 145

5.3.8 Appendix Items

5.3.8.1 CSIC Information

CSIC is installed with the data for black and color cartridges in the EEPROM. The

EEPROM records the information of black/color ink cartridge life and so on.

According to the data in the EEPROM, the information of ink cartridge life and others

is displayed on the status windows.

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Appendix Items.

3. The Appendix Items window appears. Select CSIC Information.

Figure 5-50. CSIC Information Selection

4. Select the necessary item and click OK. (e.g. Black Ink Cartridge Unique

Information is selected here).

If you need all of the information listed on the window, select Print Out All

Information.

Figure 5-51. CSIC Information

5. The selected information is displayed.

Figure 5-52. Black I/C Unique Information

6. To select other items, click Previous to return to the CSIS Information window.

7. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

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ADJUSTMENT Individual Adjustment Program 146

5.3.8.2 EEPROM Data Check

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Appendix Items.

3. The Appendix Items window appears. Select EEPROM Data.

Figure 5-53. EEPROM Data Selection

4. Input the reading start address and end address. Click OK.

Figure 5-54. Reading Start/End Address Input

5. The information of the designated address is displayed as follows.

Figure 5-55. EEPROM Data Displayed

6. Click Previous twice to return to the EEPROM Data window.

7. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

5.3.8.3 Changing EEPROM Data

1. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

2. Select Appendix Items.

3. The Appendix Items window appears. Select EEPROM Data.

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ADJUSTMENT Individual Adjustment Program 147

4. The the EEPROM Data window appears. Select Change the EEPROM Data.

Figure 5-56. EEPROM Data Selection

5. Input the EEPROM address and data needs to be changed and click OK.

Figure 5-57. EEPROM Data Change Window

6. When the EEPROM data is changed, a new address and data is displayed at the

lower left.

Figure 5-58. EEPROM Data Change Completed

7. Click Previous twice to return to the EEPROM Data window.

8. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

5.3.9 A4 Check Pattern Printing

This function lets the printer to print several test patterns on a A4 paper to allow you to

check the adjustment results.

1. Set A4 Normal Paper on the ASF.

2. Start the program and input all the required information on the initial window.

Then the main menu appears on the screen. (See 5.2.4.1“Adjusting Program Initial

Setting” on page -128)

3. Select Check Pattern Printing Items.

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ADJUSTMENT Individual Adjustment Program 148

4. The Check Pattern Printing window appears. Select A4 Normal Paper

Printing.

Figure 5-59. A4 Normal Printing Selection

5. Click OK. All of the 8 items on the window are printed on A4 Normal sheets.

Figure 5-60. A4 Normal Paper Printing

6. When the printing is completed, the following message is displayed on the

window.

Figure 5-61. A4 Normal Paper Printing Completed

7. To exit or continue the program, click Quit on the lower left on the window.

(Refer to Figure 5-17.“Exit Window” on page -131.)

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ADJUSTMENT Sequential Repair Adjustment Program 149

5.4 Sequential Repair Adjustment Program

This program is common for both Stylus Photo 890 and Stylus Photo 1290.

NOTE: In this section, Stylus Photo 890 program windows are used as examples.

5.4.1 Function

In this section, the sequential operations needs to be done are explained. This service

program provides appropriate adjustment orders for repair, and the following

adjustment items are included:

Printhead Removal

Printhead Replacement

Main Board Replacement

Carriage Unit Replacement/Removal

CR Motor Replacement

Printer Mechanism Replacement

Waste Ink Pad Replacement

Clogged Nozzle Recovery

5.4.1.1 How to start the program

1. Start the program and input all the required information on the initial window.

Make sure to chose Sequential Repair Adjustment Program for Program Type.

(See 5.2.4.1“Adjusting Program Initial Setting” on page -128)

Figure 5-62. Program Type Selection

2. Select a repair item and click OK. The main menu appears.

Figure 5-63. sequential Repair Adjustment Program Main Menu

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ADJUSTMENT Sequential Repair Adjustment Program 150

5.4.1.2 Printhead Removal

When you remove the printhead and reinstall it, select this function and execute the

operations following the procedures below.

1. Reinstall the printhead to the carriage unit of the under-repair printer mechanism.

2. Select Printhead Rmoval from the main menu.

3. Select Head Cleaning and click OK. For detailed information on the ink

consumption amount during the Head Cleaning operation, refer to 5.3.4.1“Head

Cleaning Operation” on page -139.

Figure 5-64. Head Cleaning Window

4. When the Head Cleaning is completed, the following message is displayed on the

window.

Figure 5-65. Head Cleaning Completed

5. Select Bi-D Adjustment and click Print. According to the printed Bi-D

Adjustment Pattern, continue the adjustment until you get the best result. If you

need to change the Bi-D Adjustment values, click Adjust and change the

adjustment values. Refer to 5.3.2“Bi-Directional Adjustment” on page -133.

Figure 5-66. Bi-D Adjustment Pattern Printing

NOTE: To save sheets of paper during Bi-D Pattern Printing, you can set an initial

printing start position by using the track bar on the window. The printing start

position can be determined according to the track bar you set. Refer to 5.3.2“Bi-

Directional Adjustment” on page -133.

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ADJUSTMENT Sequential Repair Adjustment Program 151

6. When the Bi-D pattern printing is finished, the following message is displayed.

Click Complete.

Figure 5-67. Bi-D Pattern Printing Completed

7. The following message appears. All of the Printhead Removal operations are

completed.

Figure 5-68. Printhead Removal Operations Completed

8. To return to the main menu, click the Menu button at the lower left.

5.4.1.3 Printhead Replacement

1. Replace the printhead with a new one. Select Printhead Replacement from the

main menu.

2. The Head ID window appears. Input a 13-digit Head ID and click OK.

Figure 5-69. Head ID Input Window

3. The following massage, “As head ID, ’xxxxxxxxxxxxx’ has been written in

EEPROM” is displayed. Click Complete.

4. Select Ink Charge. For the procedures, refer to 5.3.5“Ink Charge Operation” on

page -140.

Figure 5-70. Ink Charge Window

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ADJUSTMENT Sequential Repair Adjustment Program 152

5. Execute Nozzle Check. Refer to 5.4.1.9“Clogged Nozzle Recovery” on

page -152.

6. Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on

page -133

5.4.1.4 Main Board Replacement

1. Select Main Board Replacement from the main menu.

2. Execute Head ID Input. Refer to 5.4.1.3“Printhead Replacement” on page -151.

3. Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on

page -133.

4. Execute USB ID Input. Refer to 5.3.3“Input/Check USB ID” on page -137.

5. Execute Protection Counter Clear. Refer to 5.3.7“Protection Counter” on

page -143.

5.4.1.5 Carriage Unit Replacement/ Removal

1. After removing or replacing the Carriage Unit with a new one, select Carriage

Unit Replacement/Removal from the main menu.

2. Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on

page -133.

5.4.1.6 CR Motor Replacement

1. After replacing the CR Motor, select CR Motor Replacement from the main

menu.

2. Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on

page -133.

5.4.1.7 Printer Mechanism Replacement

Make this adjustment when you replace the printer mechanism with a new one. Since

the Printer Mechanism Replacement Procedures are the same as those of the Printhead

Replacement, refer to 5.4.1.3“Printhead Replacement” on page -151.

5.4.1.8 Waste Ink Pad Replacement

When you replace the Waste Ink Pad with a new one, the protector counter needs to be

cleared.

1. Select Waste Ink Pad Replacement from the main menu.

2. Execute Protection Counter Clear. Refer to 5.3.7“Protection Counter” on

page -143.

5.4.1.9 Clogged Nozzle Recovery

1. Select Clogged Nozzle Recovery from the main menu.

2. Select Nozzle Check and click Print. If a dot missing problem occurs, click

Cleaning to execute nozzle cleaning. Repeat the procedures, if necessary, until the

nozzle problem is recovered.

3. The Nozzle Check Patter is printed as follows.

Figure 5-71. Nozzle Check Pattern Sample

NOTE: To save sheets of paper during Nozzle Check Pattern Printing, you can set an

initial printing start position by using the track bar on the window. The printing

start position can be determined according to the track bar you set. With this

function, you can print out Nozzle Check Printing Patterns multiple times on an

A4 size sheet.

4. For the second or later test printing using, using the track bar is recommended to

save paper. The track bar can be set to 8 levels. For the second printing, setting the

bar to the first is recommended. After setting the bar, click OK.

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ADJUSTMENT Sequential Repair Adjustment Program 153

5. The second or third test printing patterns are printed as follows.

Figure 5-72. Second/Third Nozzle Check Pattern Printing Sample

6. When the Nozzle functions properly, click Complete.

7. To return to the main menu, click the Menu button at the lower left.

The Second Nozzle Check Pattern

starts from here.

The Third Nozzle Check Pattern

starts from here.

CHAPTER

MAINTENANCE

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 155

6.1 Overview

This section describes points and procedures for maintaining the printer in its optimum

condition.

6.1.1 Cleaning

The printer has no mechanical components which require regular cleaning. Therefore,

note that the points suggested below are only to check for dirt, and cleaning should be

performed upon necessity.

Housing:

Use a soft clean cloth moistened with water to wipe off any dirt. If the housing is

stained with ink, use a cloth moistened with neutral detergent to wipe it off.

Inside the Printer:

Use a vacuum cleaner to remove any paper dust.

6.1.2 Service Maintenance

If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates

“Maintenance Error”, take the following actions to clear the error.

6.1.2.1 Head Cleaning

The printer has a built-in head cleaning function, which is activated through the control

panel operation. Run a head cleaning in the following order:

1. Confirm that the printer is in stand-by state. (The power lamp is not blinking.)

2. Hold down the cleaning button on the control panel for 3 seconds or longer. (The

power LED blinks during the cleaning.)

6.1.2.2 Maintenance Request Error Clear

Ink is used for cleaning as well as printing. During cleaning, the printer drains some ink

into the waste ink pads. The protection counter A in EEPROM on the main board keeps

track of the quantity of ink drained into the waste ink pads. When the counter reaches

the predefined service limit, the printer assumes the waste ink pad is full of ink and

requests ink pad replacement by indicating a maintenance request error.

Service limit of the protection counter A:

The service limit of the protection counter A = 35400

Timing for replacing the waste ink pad:

When the total amount of the waste ink reaches the predetermined limit, a

maintenance error occurs. In this condition, the printer does not accept any input

but from the power button.

Current counter value can be found on a status print sheet that also shows the

firmware version, selected code page, and nozzle check pattern. During

servicing, you are required to check the counter value and if the counter is

close to its limit, notify your customer of the situation and recommend that the

waste ink pad be replaced (If the waste ink pad is not replaced at that time,

there is a possibility that a maintenance error will occur soon after the printer

is returned to the customer). Once you have the confirmation of the customer,

replace the waste ink pad and reset the counter.

The counter limit is generally 25000 pages and 10000 pages for black and

color, respectively. In normal use, the counter reaches the limit in 5 years.

C A U T I O N Never use chemical solvents, such as thinner, to clean the printer.

These chemicals can damage the printer components.

Be careful not to damage the components in attempt to clean

inside the printer.

Do not scratch the surface of “ROLLER, ASSEMBLY, PF”. (Use

a soft brush to wipe off the dust, or use a soft cloth moistened

with alcohol.)

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MAINTENANCE Overview 156

Replacement procedure:

Refer to Section 4.2.5.

Operation after replacement:

Perform “Waste ink counter reset”. Refer to Chapter 1/Section 1.4.4 for details.

6.1.3 Lubrication

The type and amount of oil and grease used to lubricate the printer parts are determined

based on the results of internal evaluations. Therefore, be sure to apply the specified

type and amount of oil and grease to the specified part of the printer mechanism during

servicing.

Table 6-1. Specified Lubricants

C A U T I O N Never use oil and grease other than those specified in this

manual. Use of different types of lubricant can damage the

printer and its components.

Never apply larger amount of lubricant than specified in this

manual.

Type Name EPSON Code Supplier

Grease G-26 1080614 EPSON

Grease G-56 1059150 EPSON

Oil O-12 1038991 EPSON

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 157

Table 6-2. Lubrication Point

Lubrication Point Lubricant Type &

Amount Refer to:

1COMBINATION GEAR, 12, 22.92,

LEVER ASSY

• Using a brush, apply the grease evenly to

the inside surface of the bushing except

for the part in witch E-Ring is installed.

G-26 Page 159

2BUSHING, 12, RIGHT

• Using a brush, apply the grease evenly to

the inside surface of the bushing.

G-26

A 3-mm wide bead

Page 159

3HOLDER, PULLEY, DRIVEN G-26

φ 1 x 3mm (for each of

the 4 points)

Page 159

4BUSHING, 12, LEFT

• Using a brush, apply the grease to the

inside surface of the bushing.

G-26

A 3-mm wide bead

Page 160

5BUSHING, 6

• Using a brush, apply the grease to the

inside surface of the bushing.

G-26

A 1-mm wide bead

Page 160

6PULLEY, DRIVEN

• Apply the grease to the flat surface.

G-26

φ 1 x 1mm (2 points)

Page 161

7SHAFT, PULLEY, DRIVEN G-26

φ 1 x 1mm

Page 161

8COMBINATION GEAR, 12, 22.4

• Using a dispenser, apply the oil to the

entire inside circumference of the gear.

O-12 Page 161

9COMBINATION GEAR, 14, 28

• Using a flux dispenser, apply the oil to the

entire inside circumference of the gear.

O-12 Page 161

10 Shaft C

• Using a brush, apply the oil to the whole

surface of Shaft C with G-26.

G-26 Page 161

11 FELT, D3.6 for COMBINATION GEAR

12, 22.4 (set the felt to Shaft B)

• Lubricate the inner all part of the

Combination Gear, 12,22.4 with O-12 by

brush.

• Dip the felt in the oil to soak it

• Insert the Felt, D3.6 with O-12 to Shaft B.

NOTE:1) Do not use Felt with white

core.

2) Do not spill on Lever Planet

Unit during insertion of Felt.

3) Do not hang down oil to any

part except on the shaft.

O-12

Soak in.

Page 161

12 FELT, D3.6 for COMBINATION GEAR

14, 28 (set the felt to Shaft A)

• Lubricate the inner all part of the

Combination Gear, 14,28 with O-12 by

brush.

• Dip the felt in the oil to soak it

• Insert the Felt, D3.6 with O-12 to Shaft A.

NOTE:1) Do not use Felt with white

core.

2) Do not spill on Lever Planet

Unit during insertion of Felt.

3) Do not hang down oil to any

part except on the shaft.

O-12

Soak in.

Page 161

13 Groove on “ROLLER, PF”

• Apply the grease to the groove on the

Roller PF.

G-26

φ 1 x 5mm

Page 162

14 Contact area for ROLLER, EJECT and

GROUND SPRING, EJECT

• Apply the grease while rotating the shaft.

G-26

φ 1 x 2mm

Page 162

Table 6-2. Lubrication Point (continued)

Lubrication Point Lubricant Type &

Amount Refer to:

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 158

15 Contact areas for ROLLER, PF and

PAPER GUIDE, REAR

• Apply the grease to the contact area while

rotating the shaft.

NOTE: Do not get the grease on the

specially coated area of ROLLER,

PF.

G-26

φ 1 x 1/2 of the

circumference

Page 162

16 PAPER GUIDE, FRONT (6 points)

• Lubricate slots(4) and hooks(2) of Paper

Guide Front with G-26 using syringe.

G-26

•φ 1 x 2mm

(Eject Roller side-

[2])

•φ 1 x 10mm

(PF Roller side[1])

•φ 1 x 2mm([2] hooks

& [1] slot)

Page 162

17-

SHAFT, CR (EPSON Stylus Photo 890

only)

• Apply G-56 on Shaft, CR (2 spots).

• After applying the grease, move the

Carriage to left to right to distribute the

grease evenly on the shaft.

G-56 Page 163

17-

2SHAFT, CR (EPSON Stylus Photo

1280/1290)

• Apply O-12 on the Oil Pad (1049380)

O-12

• 0.70-0.74cc or 0.63-

0.67g

18 COMBINATION GEAR 13.5, 30 shaft in

FRAME, LEFT G-26

φ 1 x 5mm

Page 163

Table 6-2. Lubrication Point (continued)

Lubrication Point Lubricant Type &

Amount Refer to:

19 LD Roller Assy hole in the FRAME, ASF;

• Using a brush, apply the grease evenly to

the entire inside surface of the hole.

G-26

φ 1 x 1mm

Page 163

20 Latches (right & left) in the Hopper Assy

along which the hopper release levers turn

(2 spots).

• Use a brush to apply the grease.

G-26

A 2-mm wide bead for

each one.

Page 164

21 GUIDE PLATE, CR

• Apply the grease to the Carriage using the

Guide Place CR Lubricating jig.

• Spread the G-26 evenly by moving the

Carriage once.

G-26

φ 1 x 270mm(See the

figure for length.)

Page 164

W ARNING Never apply oil directly to the CR guide shaft. This may cause a

fatal damage to the main components of the printer. (EPSON

Stylus Photo 1280/1290)

Avoid applying too much oil to the oil pad. Otherwise, you may

critically damage the main components of the printer. (EPSON

Stylus Photo 1280/1290)

Table 6-2. Lubrication Point (continued)

Lubrication Point Lubricant Type &

Amount Refer to:

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 159

Figure 6-1. Lever Assy, Combination Gear, 12,22.92

Figure 6-2. Bushing, 12, Right

Figure 6-3. Holder, Pulley, Driven

COMBINATION GEAR, 12,22.9

G-26

HOLDER, PULLEY, DRIVEN G-26 G-26

G-26

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 160

Figure 6-4. Bushing, 12, Left Figure 6-5. Bushing, 6

BUSHING, 12, LEFT

G-26

SHAFT, CR, GUIDE

G-26

BUSHING, 12, LEFT

G-26

ROLLER, ASSY, EJECT

E RING, 4, F/UC

BUSHING, 6

LEVER, CR, LOCK

PLAIN WASHER,

5.1X0.7X11,S/Na

U-TYPE SPRING,

5.2X0.13X10,S/Na

BUSHING, 6 G-26

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 161

Figure 6-6. Shaft, Pulley, Driven

Figure 6-7. Combination Gear, 12,22.4 & 14.28

SHAFT, PULLEY, DRIVEN

PULLEY, DRIVEN

G-26

COMBINATION

GEAR, 12, 22.4

COMBINATION

GEAR, 17.19, 25.6

FELT, D3.6

MOUNTING

PLATE,

MOTOR, ASF

COMBINATION

GEAR, 14, 28

O-12

FELT, D3.6

G-26

FELT, D3.6

SHAFT, C SHAFT, B SHAFT, A

Screw hole for

Motor Assy, ASF

*No oil

O-12

LEVER PLANET UNIT

SET RING, D8.8

must fit in

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 162

Figure 6-8. Groove on Roller, PF

Figure 6-9. Roller, Eject & Ground Spring, Eject

Figure 6-10. Roller, PF

Figure 6-11. Paper Guide, Front (6 spots)

SHAFT, CR

G-26

CONTACT SPRING,

PAPER EJECT

G-26

ROLLE PAPER GUIDE,

G-26

G-26 G-26

G-26

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 163

Figure 6-12. Shaft, CR (EPSON Stylus Photo 1280/12909 Carriage

Unit)

]

Figure 6-13. Combination Gear, 13.5,30

Figure 6-14. Frame, ASF; B

Approx. 3 cm Approx. 3 cm

G-56

After applying G-56 on the

shaft, rotate the shaft half

way.

Move the Carriage to left to right.

Rotating the Shaft, to distribute the

grease evenly on the shaft.

G-26

COMBINATION GEAR, 13.5,30

SHAFT

G-26

EPSON Stylus Photo 890/1280/1290 Revision D

MAINTENANCE Overview 164

Figure 6-15. Hopper Assy (right and left)

Figure 6-16. Guide Plate, CR

G-26 G-26

FRAME, ASF; B

HOPPER ASSY

Screw

Hook for the CR motor

linear scale

G-26

CHAPTER

APPENDIX

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 166

7.1 Connector Summary

7.1.1 Connector Alignment

This section provides information on connectors connecting main components of the

printer.

Figure 7-1. Cable Connection

7.1.2 Connector Pin Assignment

Print Head

Parallel I/F

Printer Mechanism

USB I/F

(CSIC,CR Encoder

)

appn0

Table 7-1. Connector Assignment

Connector Function Table to refer to

CN1 Parallel interface connector

CN3 USB interface connector

CN5 PE sensor connector Table 7-2

CN6 ASF sensor connector Table 7-3

CN8 Printhead connector (including the CR encoder

input line) Table 7-4

CN9 Printhead connector (including CSIC

communication and head temperature detection) Table 7-5

CN11 Control panel connector Table 7-6

CN12 PF encoder connector Table 7-7

CN13 CR motor connector Table 7-8

CN14 PF motor connector Table 7-9

CN15 ASF/Pump Motor Table 7-10

CN19 Power Table 7-11

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 167

Table 7-2. Connector Pin Assignment - CN5

Pin Signal Name I/O Function

1 PE I PE signal

2GND −GND

3PEV −+5V

Table 7-3. Connector Pin Assignment - CN6

Pin Signal Name I/O Function

1 ASF I ASF HP detection

2GND -GND

3ASFV-+5V

Table 7-4. Connector Pin Assignment - CN8

Pin Signal Name I/O Function

1 COM - Head drive pulse

2GND -Ground

3 COM - Head drive pulse

4GND -Ground

5VHV-

+42V power supply for nozzle

selector

6GND -Ground

7 SEL I Command Selection

8GND -Ground

9VDD-+5V

10 LAT OHead data latch pulse output

11 GND - Ground

12 NCHG OHead NCHG

13 THM I Thermistor detect signal

14 SI1 OHead data

15 SI2 O Head data

16 SI3 OHead data

17 SP O SP signal

18 NC - -

19 GND - Ground

20 ENA ICR encoder output A

21 VDD - +5V

22 ENB ICR encoder output B

23 GNB - Ground

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 168

Table 7-5. Connector Pin Assignment - CN9

Pin Signal Name I/O Function

1 SI6 O Head data

2SI5 OHead data

3 SI4 O Head data

4GND -Ground

5SCKO

6GND -Head NCHG

7 CH O Ground

8COC IClock

9 RXD O Ground

10 COB ISP signal

11 TXD I Head data

12 VDD3.3 -Head data

13 GND - Head data

14 COM -Head data

15 GND - Head data

16 COM -Head data

17 GND - Ground

Table 7-6. Connector Pin Assignment - CN11

Pin Signal Name I/O Function

1 SW2 I Switch signal input

2LED0 OLED output

3 GND - Ground

4VCC -+5V

5 LED3 O LED output

6SW1 ISwitch input

7PSCIPower switch

8SW0 ISwitch input

9 SW2 I Switch input

Table 7-7. Connector Pin Assignment - CN12

Pin Signal Name I/O Function

1GND-

Ground

2ENB IRotary encoder Phase B output

3VCC-+5V

4ENA IRotary encoder Phase A output

5GND-

Ground

Table 7-8. Connector Pin Assignment - CN13

Pin Signal Name I/O Function

1 PF-A O PF motor Phase A

2PF-B OPF motor Phase B

Table 7-9. Connector Pin Assignment - CN14

Pin Signal Name I/O Function

1 CR-A O CR motor Phase A

2CR-B OCR motor Phase B

Table 7-6. Connector Pin Assignment - CN11

Pin Signal Name I/O Function

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 169

7.1.3 EEPROM Address Map

This section provides the EEPROM address map.

Table 7-10. Connector Pin Assignment - CN15

Pin Signal Name I/O Function

1 A O ASF/Pump Motor Phase A

2 B O ASF/Pump Motor Phase B

3 /A O ASF/Pump Motor Phase /A

4/B OASF/Pump Motor Phase /B

Table 7-11. Connector Pin Assignment

Pin Signal Name I/O Function

1 +42V - +42V Power

2+42V -+42V Power

3 GND - Ground

4ESAVE OEnergy saving mode

5 PSC O Secondary power ON/OFF

6GND -Ground

7 GND - Ground

8+5V -+5V Power

Table 7-12. EEPROM Address Map

Address

Explanation Setting QPIT

Settings Factory

Settings

00H Pass word 0FH -

01H 5AH -

02H EEPROM mapping

revision 41H -

03H Reserved 00H -

04H Interface selection 0: Auto, 1: Parallel, 2: USB 00H 00H *2

05H Interface time-out 0 to 255 (by second, value of 0

means 10 seconds) 0AH 0AH

06H Compatibility speed 0: Fast, 1: Slow,

2: Special-1, 3: Special 2 00H 00H

07H ECP speed*a 0: Fast, 1: Slow 00H 00H

08H IEEE1284.4 for Parallel 0: Auto, 1: On, 2: Off 00H 01H

09H IEEE1284.4 for USB 0: Auto, 1: On, 2: Off 00H 01H

0AH 1/F Control flags

bit1: ECP mode

(0=Off, 1=On)*b

bit0: IEEE1284 mode (0=On,

1=Off)*c

00H 00H

0BH -

0FH Reserved 00H -

10H -

15H CPSI pass word 00H 00H

16H Print direction control 0: Bi-D, 1: Uni-D, 2: Auto 02H 02H

17H CG table 08H: PC437, 0AH: PC850 00H 00H

18H Font 0: Courier 00H 00H

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 170

19H Pitch 0: 10cpi 00H 00H

1AH Auto LF, Network I/F

mode

bit1: Network I/F mode (0=Off,

1=On)

bit0: Auto line feed

(0=Off, 1=On)

00H 00H

1BH Check model control bit7: Self test mode

bit6: Hex dump mode 00H 00H

1CH -

1FH Reserved 00H -

20H Bi-D Adjustment for

MultiShot (Bk)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

21H Bi-D Adjustment for

6plVSD (Bk)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

22H Bi-D Adjustment for

4plVSD (Bk)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

23H Bi-D Adjustment for

MultiShot (Cl)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

24H Bi-D Adjustment for

6plVSD (Cl)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

25H Bi-D Adjustment for

4plVSD (Cl)

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

26H 1st Dot Position

Adjustment

-72<=n<=+72

(by 0.00882mm(1/2880 inch) 00H *1

27H Reserved 00H -

28H reserved for CR Phase

on Home 00H -

29H reserved for Paper

Sensor Adjust 00H -

2AH Roll paper flag bit1: Panel Load Mode

bit0: Rollpaper Mode 00H 00H

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

2BH Error Code 00H 00H

2CH Error Counter at Initial

Fills I/S 00H *1

2DH CR Measurement Data 00H 00H

2CH PF Measurement Data 00H 00H

2FH Reserved 00H -

30H Top margin 42 to 44x360 (by 0.0706 (1/360

inch))

00H 00H

31H 78H 78H

32H Bottom margin 1244 to 44x360 (by 0.0706 (1/

360 inch))

1EH 1EH

33H F0H F0H

34H Page length 1244 to 44x360 (by 0.0706 (1/

360 inch))

1EH 1EH

35H F0H F0H

36H Reserved 00H -

37H 00H-

38H-

3BH

Accumulate page

counter by 1 page 00H 00H

3CH-

3FH Accumulate print pass by 1 pass 00H 00H

40H Password 0FH -

41H 5AH -

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 171

42H Ink flag1

bit7: CSIC disable

bit6: Black one-time

bit5: Color one-time

bit4: Initial fill required

bit3: Reserved

bit2: Ink cleaning seq.

bit1: Black CL required

bit0: Color CL required

00H 10H

43H Ink flag2

bit7: Reserved

bit6: Black 1st cartridge

bit5: YMC 1st cartridge

bit4: Black CSIC changed

bit3: YMC CSIC changed

bit2: YMC cartridge changed

and cleaned

bit1: Black cartridge changed

and cleaned

bit0: Black cartridge only

changed and cleaned

00H 00H

44H

Ink counter Cb

00H 00H

45H 00H 00H

46H 00H 00H

47H 00H 00H

48H

Ink counter Cy

00H 00H

49H 00H 00H

4AH 00H 00H

4BH 00H 00H

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

4CH

Ink counter Cc

00H 00H

4DH 00H 00H

4EH 00H 00H

4FH 00H 00H

50H

Ink counter Cm

00H 00H

51H 00H 00H

52H 00H 00H

53H 00H 00H

54H

Ink counter Clc

00H 00H

55H 00H 00H

56H 00H 00H

57H 00H 00H

58H

Ink counter Clm

00H 00H

59H 00H 00H

5AH 00H 00H

5BH 00H 00H

5CH 00H 00H

5DH 00H 00H

5EH 00H 00H

5FH 00H 00H

60H Ink counter Rb0 00H 00H

61H 00H 00H

62H Ink counter Rb80 00H 00H

63H 00H 00H

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 172

64H Ink counter Ry0 00H 00H

65H 00H 00H

66H Ink counter Ry80 00H 00H

67H 00H 00H

68H CL time 00H 00H*2

69H 00H 00H*2

6AH Power off time 00H 00H*2

6BH 00H 00H*2

6CH Ink counter A0 00H 00H*3

6DH 00H 00H*3

6EH

Ink counter A80

00H 00H*3

6FH 00H 00H*3

70H Accumulated printing

time

00H 00H

71H 00H 00H

72H CSIC1_InkName1 00H 00H

73H CSIC2_InkName2 00H 00H

74H

Reserved

00H 00H

75H 00H 00H

76H 00H 00H

77H 00H 00H

78H Cleaning KK counter 00H 00H

79H Cleaning 1 counter 00H 00H

7AH Cleaning 1 dash counter 00H 00H

7BH Cleaning 2 counter 00H 00H

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

7CH Home out cleaning

counter 00H 00H

7DH Timer cleaning counter 00H 00H

7EH Bk change cleaning

counter 00H 00H

7FH Color change cleaning

counter 00H 00H

80H Password 0FH -

81H 5AH -

82H Power unit select 00H *1

83H-

9FH Reserved 00H -

A0H Head Actuator Rank ID

for VhN +1<=n<=+201 00H *1

A1H Head Actuator Rank ID

for VhM +1<=n<=+201 00H *1

A2H Head Actuator Rank ID

for VhL +1<=n<=+201 00H *1

A3H Head Actuator Rank ID

for VhU +1<=n<=+201 00H *1

A4H Head Actuator Rank ID

for VhM2 +1<=n<=+201 00H *1

A5H Head Actuator Rank ID

for VhB +1<=n<=+201 00H *1

A6H Head Actuator Rank ID

for AR 00H *1

A7H Microweave ID 00H *1

A8H Head Actuator Rank ID

for Iw_B +30<=n<=+70 00H *1

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Connector Summary 173

A9H Head Actuator Rank ID

for Iw_C +30<=n<=+70 00H *1

AAH Head Actuator Rank ID

for Iw_M +30<=n<=+70 00H *1

ABH Head Actuator Rank ID

for Iw_Y +30<=n<=+70 00H *1

ACH Head Actuator Rank ID

for Iw_LC +30<=n<=+70 00H *1

ADH Head Actuator Rank ID

for Iw_LM +30<=n<=+70 00H *1

AEH 00H *1

AFH 00H *1

B0H CSIC printer name

For Stylus PHOTO 890:

0Fh:R4C7260 (Japan)

8Fh:R4C7260 (World)

For Stylus PHOTO 1280/1290:

10h:R4C7260 (Japan)

90h:R4C7260 (World)

00H *1

B1H-

BFH Reserved 00H *1

C0H Password 0FH -

C1H 5AH -

C2H -

D3H USB ID 00H *1

D4H -

D7H Reserved 00H -

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

D8H

Custom EEPROM sub

number

00H 00H

D9H 00H 00H

DAH 00H 00H

DBH 00H 00H

DCH Panel mask function

bit7: Entry self-test

bit6: Entry Hex-Dump

bit5: Extended settings

bit4: Reserved

00H 00H

DDH Reserved 00H -

DEH 00H -

DFH Factory reserved 00H -

E0H Market ID 0: World, 1: Japan,

2: Custom 00H 00H

E1H Reserved 00H -

E2H -

FFH Model Name 00H -

*a: Enable or disable reverse transfer. (When disabled, ignore -SLIN signal.)

*b: BUSY signal delay time from fall-edge of a -STB signal. (Fast: Maximum 1MB/second,

Slow: Maximum 600KB/second)

*c: Select IEEE1284 transfer mode. (ECP or Nibble)

NOTE:

*1: Adjusted at factory.

*2: Initialized by the EEPROM reset of the special setting mode.

*3: Initialized by the Waste ink counter reset of the special setting mode.

Table 7-12. EEPROM Address Map (continued)

Address

Explanation Setting QPIT

Settings Factory

Settings

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Circuit Board Component Layout 174

7.2 Circuit Board Component Layout

C393MAIN CONTROL CIRCUIT BOARD

Figure 7-2. Component Layout - C393MAIN

Component Side

Soldered Side

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Circuit Board Component Layout 175

C393MAIN-B CONTROL CIRCUIT BOARD

Figure 7-3. Component Layout - C393MAIN-B

Component Side

Soldered Side

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Circuit Board Component Layout 176

C393MAIN-C CONTROL CIRCUIT BOARD

Figure 7-4. Component Layout - C393MAIN-C

Component Side

Soldered Side

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Circuit Board Component Layout 177

C378PSB/PSE CIRCUIT BOARD

Figure 7-5. Component Layout - C378PSB Figure 7-6. Component Layout - C378PSE

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Circuit Board Component Layout 178

C393PNL CIRCUIT BOARD

Figure 7-7. Component Layout - C393PNL

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Electrical Circuit Board Diagrams 179

7.3 Electrical Circuit Board Diagrams

See the following pages for the electrical circuit board diagrams below:

C393MAIN

C393MAIN-B

C393MAIN-C

C393PNL

C378PSB

C378PSE

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 186

7.4 Exploded Diagrams

7.4.1 Exploded Diagrams for Stylus PHOTO 890

See the following pages for exploded diagrams for Stylus PHOTO 890.

Figure 7-8. Stylus PHOTO 890 - 1

774

NO.1 Rev.01 10275

PM-880C/ EPSON STYLUS PHOTO 890

805

122

117

122 754

122

106

133

132

103

751

753

766

752

104

126

136

130

125

450

742

125

105 125

135

100

124

122

116

124

125

400

500

115

101

102

775

777

801

803

802

800

182

180

181

183

774

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 187

Figure 7-9. Stylus PHOTO 890 - 2

PM-880C/EPSON STYLUS PHOTO 890 Rev.01NO.2 10275

330

608

580

122

200

122

109

122

131

122 111

121

122

121

122

112

113

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300

604

591

613

524

594

603

534

532

574

119

501

114

122

606

607

587

512

587

108

505

587

108

587

119

614

506

122

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 188

Figure 7-10. Stylus PHOTO 890 - 3

PM-880C/EPSON STYLUS PHOTO 890 No.3 Rev.01 10275

761

748 513

587

568

575

567

577

575

546

506

705

706

569

566

588

565

572 570

571

589

748

507

514

551

549

552

553

501

587 558 756 757 758

605

609

548

550

550 550

550

549

550

549

550

549

550

549 550

550

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551 548

551548

551

548

551

548

551

548

545x5

547

557

555

554

759

704

760

604

612

587

762

761

612

644

700

560

573

564

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 189

Figure 7-11. Stylus PHOTO 890 - 4

645

PM-880C/ EPSON STYLUS PHOTO 890

587

No.4 Rev.01 10275

526

521

525

518

587

(501) 528517528527

610

536

587

559

639

590

530

611

529

587

538

540 541

544

543

542544

542

544542

539

531

530

119

599

616

624

621587

618 519

587

556

531

508 509

626

612

620

533

516

623

622

579

582

520

619

627

592

619

504

586

610

535

515

522

537

510

502

544542544542544542544

542544542544542544542544542544542544 542

531

628

610

531

587

765

585593

587

578

625

587

511

637

641

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 190

Figure 7-12. Stylus PHOTO 890 - 5

PM-880C/ EPSON STYLUS PHOTO 890

No.5 Rev.01 10275

780 Without 747,748

738

714

708

710

736

737

739

707

711

713

712

737

755

764

709

739

736

740

716

721

719

723

720

722

725

724

735

720

724

730

726

723

729

721 728

731

733

745

746

734

732

746

745

727

717

718

581

763

715

748

747

782

781

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 191

7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290

See the following pages for exploded diagrams for Stylus PHOTO 1280/1290.

Figure 7-13. Stylus PHOTO 1280/1290 - 1

PM-3500C / EPSON STYLUS PHOTO 1290 No.1 Rev.01 10270

783

125

400 401

123

106

103

126 126

122

774

754

117

122 125 125

125

102

751

774 122

116 122

124

400

126

136

133

126

132

104

124

180

105 100

125

742

125

450

124

500

182

753

766 752

743

183

for JPN

110

115

101

775

400 for EAI,EUL(120V),ETT

For EAI(220V),EUR, S.E.ASIA,

EAL,EKL

776

181

130

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 192

Figure 7-14. Stylus PHOTO 1280/1290 - 2

PM-3500C / EPSON STYLUS PHOTO 1290 No.2 Rev.01 10270

512

607

606 603 594

524

587

534

574 532

604

591

613

587

122

501

119

122

300

608

122 122

113

112

122

131

122

330

580

122

200

109

111

122 122

122121 122

121

114

506

108

587

505

587

108

614

587

122

587

119

587

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 193

Figure 7-15. Stylus PHOTO 1280/1290 - 3

PM-3500C / EPSON STYLUS PHOTO 1290 No.3 Rev.01 10270

513

568

575

567

577

575

(506)

706

569

566

587

565

572 570

571

507

514

551

549

552

553

609

548

550

550 550

550

549

550 549

550

549

550 549 550

550

549

551 548

551

548 551

548

551

548

551

548

555

554

550

549

550 549 550

550

549

551

548

551

548

551

548

545

X 5

704 (501) 557

605

761

760

762

629

587

705

759

761

762

587

587 612

561

588

589

587 629

587

598

573 583

558

584

630

769

612

700

560

564

604

562

563

547

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 194

Figure 7-16. Stylus PHOTO 1280/1290 - 4

535

503

531

PM-3500C / EPSON STYLUS PHOTO 1290 No.4 Rev.01 10270

587

(501)

587

559

588

502

526

525 521

518

528

523517

528

527

522 537

610

636

634

587

510

633

635

587

536

610

529

515

516

538

632

544

542

544

542

544

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587

541

544

543

544

542

544

542

544

542

544

542

544

542

544 542

544

542

544

542

544

542

544

542

544

542

544

542

544542

544

542

544

542

544

542

544

542

599

119

616

621

618

587

624

587

531519

533

530 556

585

593

531

765

623

622

520

619

539

592

511

628

627

587

619

628 586

579 626

582 612

578

620

612

587 587 509

625

508

???

504

543

541

544

540

530

611

587

637

638

549

546

641

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Exploded Diagrams 195

Figure 7-17. Stylus PHOTO 1280/1290 - 5

PM-3500C / EPSON STYLUS PHOTO 1290 No.5

Rev.01 10270

735

730

720

724

731

733

734

732

724 725 722

720

735

718

719

721

717

716

738

701

739 701 703

780

764

739

703

737

741

701

715

736

737

736

740

763

749

709

712

711

750

708

714

707

758

710

748

723

721 728

729

746 745

745

718

727

726 703

747

723

713

746

781

782

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 196

7.5 Parts List

7.5.1 Parts List for Stylus PHOTO 890

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

100 HOUSING;B

101 COVER ASSY.

102 PAPER SUPPORT;B

103 STACKER ASSY.;C

104 PANEL ASSY.

105 "SHIELD PLATE,PANEL"

106 "HOUSING,PANEL,LEFT;B"

108 GROUNDING PLATE

109 "COVER,SHIELD PLATE,M/B,RIGHT"

111 "COVER,CABLE"

112 "COVER,INLET,UPPER;B"

113 "COVER,INLET,LOWER;B"

114 "SHIELD PLATE,M/B"

115 LOGO PLATE 10X40;C

116 "HOUSING,SUPPORT,RIGHT;B"

117 "HOUSING,SUPPORT,LEFT;B"

119 FOOT

121 C.P.SCREW

122 C.B.S. SCREW

123 "C.B.(O) SCREW,4X5,F/ZG"

124 C.B.S. SCREW

125 "C.B.P-TITE SCREW,3X8,F/ZN"

126 C.B.S. SCREW

130 "BUTTON,CSIC"

131 "COVER,CABLE;B"

132 "LOCK,STACKER"

133 "COMPRESSION SPRING,2.94"

135 "BUTTON,PS;B"

136 OPTICAL TUBE

180 "LABEL,CAUTION;B"

181 "LABEL,MODEL NAME;B"

184 "LABEL,ACCESSORY"

200 "BOARD ASSY., MAIN"

300 "BOARD ASSY., POWER SUPPLY"

330 HARNESS

400 POWER CABLE ASSY.

450 "BOARD ASSY.,PANEL"

500 PRINTER MECHANISM(ASP)M4T12-100

501 "FRAME ASSY,LEFT;B"

502 "MOTOR ASSY.,PF"

504 "COMBINATION GEAR,12,22.4"

505 "FRAME,RIGHT,FRONT"

506 "FRAME,UPPER"

507 "MOTOR ASSY.,CR"

508 "PUMP,ASSY."

509 CAP ASSY.

510 "FRAME,LOWER"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 197

511 "SHEET,PROTECT,INK"

512 "FRAME,FRONT"

513 "BUSHING,PARALLELISM ADJUST,LEFT"

514 "BUSHING,PARALLELISM ADJUST,RIGHT"

515 "PAPER GUIDE,REAR"

516 "ROLLER,PF"

517 "COMPRESSION SPRING,5.85"

518 "BUSHING,12,LEFT"

519 "TENSION BELT,PUMP TRANSMISSION"

520 "SPUR GEAR,15.2"

521 "SPACER,C-RING"

522 "SCALLOP SPRING PIN-AW,2X16,F/B"

524 "SPUR GEAR,76"

525 "SPACER,FASTEN,ROLLER,PF"

526 "SPACER,FASTEN,ROLLER,PF;B"

527 C-RING

528 "PLANE WASHER,12.2X0.5X17"

529 "ROLLER ASSY.,EJ"

530 "BUSHING,6"

531 RETAINING RING

532 "SPUR GEAR,28"

533 "BUSHING,12,RIGHT"

534 "PLANE WASHER,4.1X0.5X6.5"

535 "PAPER GUIDE ASSY.,FRONT"

536 "GROUNDING WIRE,EJ"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

537 "GROUNDING SPRING,PF"

538 "FRAME,PAPER EJECT"

539 "HOLDER,STAR WHEEL,RIGHT;B"

540 "HOLDER,STAR WHEEL,LEFT;B"

541 "HOLDER,STARWHEEL,FRONT"

542 "STARWHEEL ASSY.,8"

543 "STARHWEEL,8;B"

544 "RODSPRING,STARWHEEL;B"

545 "PAPER GUIDE,UPPER"

546 "PAPER GUIDE,LEFT"

547 "PAPER GUIDE,RIGHT"

548 "SHAFT,PAPER GUIDE,UPPER"

549 "SHAFT,ROLLER,DRIVEN"

550 "ROLLER,DRIVEN"

551 "TORSION SPRING,117.6"

552 "CIRCUIT ASSY,PE"

553 "HOLDER,PE"

554 "LEVER,PE"

555 "TORSION SPRING,0.22"

556 "LEVER,CR,LOCK"

557 "GUIDE PLATE,CR"

558 "SHEET,CABLE"

559 "SCREW,MOUNT,PF"

560 CARRIAGE

564 "SLIDER,CR"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 198

565 TIMING BELT

566 "SHAET,CR"

567 "PULLEY,DRIVEN"

568 "HOLDER,PULLEY,DRIVEN"

569 "COMPRESSION SPRING,23.52"

570 "LEVER,PG;C"

571 "LEVER,PG,SUPPORT"

572 "TORSION SPRING,63.7"

573 "GROUNDING PLATE,HEAD"

574 "COMBINATION GEAR,13.5,30"

575 "BUSHING,PULLEY,DRIVEN"

577 "SHAFT,PULLEY,DRIVEN"

578 "EXTENSION SPRING,0.618"

579 "LEVER,PLANET"

580 "HARNESS,PE"

581 "HARNESS,ASF"

582 "SHAFT,SPUR GEAR,PLANET"

585 "U-TYPE SPRING,5.2X0.13X10,S/NA"

586 "COMBINATION GEAR,14,28"

587 C.B.S. SCREW

588 C.P.SCREW

589 LEAF SPRING

590 "PLAIN WASHER,3.3X0.5X8,F/UC"

591 "C.B.P-TITE,2.5X5,F/ZN"

592 "PLAIN WASHER,6.2*0.2*9,L/NA"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

593 "PLAIN WASHER,5.1X0.7X11,S/NA"

594 "PLAIN WASHER,10.7X0.5X15.5,L/NA"

599 "FRAME,MIDDLE"

603 "TAPE,D50"

604 "BOARD ASSY.,ENCODER"

605 "SCALE,CR"

606 "SCALE,PF"

607 "MOUNTING PLATE,SCALE"

608 "FFC,ENCODER"

609 "EXTENSION SPRING,1.494"

610 "MINI CRAMP,UAMS-05SN"

611 "SCALLOP SPRING PIN-AW,2X10,F/B"

612 "C.B.P-TITE SCREW,3X8,F/ZN"

613 "MOUNTING PLATE,BOARD ASSY."

614 "FRAME,RIGHT,REAR"

616 "EXTENSION SPRING,7.37"

618 "LEVER ASSEMBLY,COMBINATION GEAR"

619 "SET RING,D8.8"

620 "MOTOR ASSY,ASF"

621 "P.W.,3.1X0.5X12,F/ZN"

622 RETAINING RING

623 "COMBINATION GEAR,17.19,25.6"

624 "COMBINATION GEAR,12,22.92"

625 "LEVER,DE,LOCK"

626 "MOUNTING PLATE,MOTOR,ASF"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 199

627 "COMPRESSION SPRIN,3.944"

628 "FERUTO,D3.6"

637 "SHEET,INK STOPPER"

639 CUP SCREW

641 "POROUS PAD,PAPER GUIDE,FRONT"

644 "+,BIND B-TITE SEMS W2,2.5X6,F/ZB"

645 "GROUNDING PLATE,PAPER GUIDE,FRONT"

700 PRINT HEAD

703 "C.B.P-TITE SCREW,3X6,F/ZN"

704 "CABLE,HEAD"

705 "HOLDER,CABLE"

706 "SPACER,CABLE HEAD"

707 "FRAME,ASF;B"

708 HOPPER

709 EDGE GUIDE;E

710 CORK

711 "SLIDER,EDGEGUIDE"

712 "COMPRESSION SPRING,3.23"

713 "PAD,BREAK,EDGE GUIDE"

714 "REINFORCEMENT PLATE,HOPPER"

715 "SPUR GEAR,32"

716 "PAD ASSY.,RIGHT"

717 "LEVER,PAD,RELEASE,RIGHT"

718 "ROD SPRING,HOLDER,PAD"

719 "HOLDER,EDGEGUIDE,RIGHT"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

720 "COMPRESSION SPRING,1.17"

721 "EXTENSION SPRING,0.62"

722 "LEVER,PAPERRETURN,RIGHT"

723 "EXTENSION SPRING,0.294"

724 "ROLLER,LD,SUPPORT"

725 "HOLDER,ROLLER,LD,SUPPORT,RIGHT"

726 "PAD ASSY.,LEFT"

727 "LEVER,PAD,RELEASE,LEFT"

728 "HOLDER,EDGEGUIDE,LEFT"

729 "LEVER,PAPERRETURN,LEFT"

730 "HOLDER, ROLLER,LD,SUPPORT,LEFT"

731 "ROLLER ASSY.,LD,LEFT"

732 "ROLLER ASSY.,LD,RIGHT"

733 "COVER,ROLLER,LD,LEFT"

734 "COVER,ROLLER,LD,RIGHT"

735 "COMPRESSION SPRING,1.961"

736 "LEVER,FASTEN,EDGEGUIDE;B"

737 "EXTENSION SPRING,0.088"

738 "SHAFT,ROLLER,LD"

739 "LEVER,HOPPER,RELEASE"

740 "WHEEL,DETECT"

742 "C.C.P-TITE SCREW,3X8,F/ZN"

745 "SHEET,PAPERFEED"

746 "HOLDER,SHEET,PAPERFEED"

747 "SHAFT,MOUNT,CR"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 200

748 "C.B.S-TITE(P4),3X6,F/ZN"

751 "PAPER GUIDE,LOWER"

752 "POROUS PAD,INK EJECT,LARGE;B"

753 "TRAY,POROUS PAD"

754 "SPACER,TRAY"

755 "BUSHING,FASTEN,SHAFT,LEFT"

756 "PAPER SUPPORT,SUUPPORT,UPPER"

757 "HOLDER,PAPER SUPPORT,SUPPORT,UPPER"

758 "EXTENSION SPRING,0.29"

759 "COVER,CARTRIDGE,BK;B"

760 "COVER,CARTRIDGE,C;B"

761 "PLAT SPRING COVER,CARTRIDGE"

762 "COVER,PLAT SPRING,CARTRIDGE"

763 "DETECTOR,HP;E"

764 CORK;B

765 "CLEANER HEAD,ASP"

766 "POROUS PAD,INK EJECT,SMALL;B"

774 "DUMPER,SUPPORT;B"

775 "POROUS PAD,FRAME,MIDDLE"

777 "POROUS PAD,INK EJECT,PUMP;S"

780 ASF UNIT

781 "PAPER LOADING ASSY.,RIGHT"

782 "PAPER LOADING ASSY.,LEFT"

800 "MOUNTING PLATE,ROLL PAPER,HOLDER"

801 "FRAME,ROLL PAPER,LEFT"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

802 "FRAME,ROLL PAPER,RIGHT"

803 "STOPPER,ROLL PAPER"

805 "SHEET,ROLL PAPER"

Table 7-13. Stylus PHOTO 890 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 201

7.5.2 Parts List for Stylus PHOTO 1280/1290

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

100 HOUSING

101 "COVER,PRINTER"

102 "PAPER SUPPOT,ASSY"

103 STACKER ASSY.;C

104 "HOUSING,PANEL,RIGHT"

105 "SHIELD PLATE,PANEL"

106 "PANEL ASSY.,LEFT;C"

108 GROUNDING PLATE

109 "COVER,SHIELD PLATE,M/B,RIGHT"

110 "COVER,PRINTER,SUPPORT"

111 "COVER,CABLE"

112 "COVER,INLET,UPPER;B"

113 "COVER,INLET,LOWER;B"

114 "SHIELD PLATE,M/B"

115 LOGO PLATE 10X40;C

116 "HOUSING,SUPPORT,RIGHT;C"

117 "HOUSING,SUPPORT,LEFT;C"

119 FOOT

121 C.P.SCREW

122 C.B.S. SCREW

123 "C.B.(O) SCREW,4X5,F/ZG"

124 C.B.S. SCREW

125 "C.B.P-TITE SCREW,3X8,F/ZN"

126 C.B.S. SCREW

130 BUTTON;C

131 "COVER,CABLE;B"

132 "BUTTON,PS;B"

136 OPTICAL TUBE

133 "BUTTON,CSIC"

180 "LABEL,CAUTION;B"

181 "LABEL,MODEL NAME;C"

182 "LABEL,PAPER SET;B"

200 "BOARD ASSY., MAIN"

300 "BOARD ASSY., POWER SUPPLY"

330 HARNESS

400 POWER CABLE ASSY.

450 "BOARD ASSY.,PANEL"

500 "PRINTER MECHANISM(ASP),M4S61-100"

501 "FRAME ASSY.,LEFT;B"

502 "MOTOR ASSY.,PF"

503 "GROUNDING PLATE,PAPER GUIDE,FRONT"

504 "COMBINATION GEAR,12,22.4"

505 "FRAME,RIGHT,FRONT"

506 "FRAME,UPPER"

507 "MOTOR ASSY.,CR"

508 "PUMP,ASSY."

509 CAP ASSY.

510 "FRAME,LOWER"

511 "SHEET,PROTECT,INK"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 202

512 "FRAME,FRONT"

513 "BUSHING,PARALLELISM ADJUST,LEFT"

514 "BUSHING,PARALLELISM ADJUST,RIGHT"

515 "PAPER GUIDE,REAR"

516 "ROLLER,PF"

517 "COMPRESSION SPRING,5.86"

518 "BUSHING,12,LEFT"

519 "TENSION BELT,PUMP TRANSMISSION"

520 "SPUR GEAR,15.2"

521 "SPACER,C-RING"

522 "SCALLOP SPRING PIN-AW,2X16,F/B"

523 "SLEEVE,ROLOR,PF"

524 "SPUR GEAR,76"

525 "SPACER,FASTEN,ROLLER,PF"

526 "SPACER,FASTEN,ROLLER,PF;B"

527 C-RING

528 "PLANE WASHER,12.2X0.5X17"

529 "ROLLER ASSY.,EJECT OUT"

530 "BUSHING,6"

531 RETAINING RING

532 "SPUR GEAR,28"

533 "BUSHING,12,RIGHT"

534 "PLANE WASHER,4.1X0.5X6.5"

535 "PAPER GUIDE ASSY.,FRONT"

536 "GROUNDING WIRE,EJ"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

537 "GROUNDING SPRING,PF"

538 "FRAME,PAPER EJECT;B"

539 "HOLDER,STAR WHEEL,RIGHT;B"

540 "HOLDER,STAR WHEEL,LEFT;B"

541 "HOLDER,STARWHEEL,FRONT"

542 "STAR WHEEL,8;G"

543 "STARHWEEL,8;B"

544 "RODSPRING,STARWHEEL;B"

545 "PAPER GUIDE,UPPER"

546 "ROLLER,DRIVEN"

547 "PAPER GUIDE,RIGHT"

548 "SHAFT,PAPER GUIDE,UPPER"

549 "SHAFT,ROLLER,DRIVEN"

550 "ROLLER,DRIVEN;D"

551 "TORSION SPRING,117.6"

552 "CIRCUIT ASSY,PE"

553 "HOLDER,PE"

554 "LEVER,PE"

555 "TORSION SPRING,0.22"

556 "LEVER,CR,LOCK"

557 "GUIDE PLATE,CR"

558 "SHEET,CABLE"

559 "SCREW,MOUNT,PF"

560 CARRIAGE

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 203

561 CUP SCREW

562 "GROUNDING PLATE,HEAD"

563 OIL PAD

564 "SLIDER,CR"

565 TIMING BELT

566 "SHAFT ASSY.,CR,GUIDE"

567 "PULLEY,DRIVEN"

568 "HOLDER,PULLEY,DRIVEN"

569 "COMPRESSION SPRING,23.52"

570 "LEVER,PG;B"

571 "LEVER,PG,SUPPORT"

572 "TORSION SPRING,63.7"

573 "HOLDER,PAPER SUPPORT,SUPPORT,UPPER"

574 "COMBINATION GEAR,13.5,30"

575 "BUSHING,PULLEY,DRIVEN"

577 "SHAFT,PULLEY,DRIVEN"

578 "EXTENSION SPRING,0.618"

579 "LEVER,PLANET"

580 "HARNESS,PE"

582 "SHAFT,SPUR GEAR,PLANET"

583 "PAPER SUPPORT,SUPPORT,UPPER,LEFT;B"

584 "PAPER SUPPORT,SUUPPORT,UPPER"

585 "U-TYPE SPRING,5.2X0.13X10,S/NA"

586 "COMBINATION GEAR,14,28"

587 C.B.S. SCREW

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

588 C.P.SCREW

589 LEAF SPRING

590 "PLAIN WASHER,3.3X0.5X8,F/UC"

591 "C.B.P-TITE,2.5X5,F/ZN"

592 "PLAIN WASHER,6.2*0.2*9,L/NA"

593 "PLAIN WASHER,5.1X0.7X11,S/NA"

594 "PLAIN WASHER,10.7X0.5X15.5,L/NA"

598 "EXTENSION SPRING,0.29"

599 "FRAME,MIDDLE"

603 "TAPE,D50"

604 "BOARD ASSY.,ENCODER"

605 "SCALE,CR"

606 "SCALE,PF"

607 "MOUNTING PLATE,SCALE"

608 "FFC,ENCODER"

609 "EXTENSION SPRING,1.494"

610 "MINI CRAMP,UAMS-05SN"

611 "SCALLOP SPRING PIN-AW,2X10,F/B"

612 "C.B.P-TITE SCREW,3X8,F/ZN"

613 "MOUNTING PLATE,BOARD ASSY."

614 "FRAME,RIGHT,REAR"

616 "EXTENSION SPRING,7.37"

618 "LEVER ASSEMBLY,COMBINATION GEAR"

619 "SET RING,D8.8"

620 "MOTOR ASSY,ASF"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 204

621 "P.W.,3.1X0.5X12,F/ZN"

622 RETAINING RING

623 "COMBINATION GEAR,17.19,25.6"

624 "COMBINATION GEAR,12,22.92"

625 "LEVER,DE,LOCK"

626 "MOUNTING PLATE,MOTOR,ASF"

627 "COMPRESSION SPRIN,3.944"

628 "FERUTO,D3.6"

629 "C.B.S-TITE(P4),3X6,F/ZN"

630 "PLANE WASHER,4.5X0.5X8,L/NA"

632 "HOLDER,STARWHEEL,SUPPORT;B"

633 "BUSHU,ROLLER PF,SUPPORT"

634 "LEVER,ROLLER PF,SUPPORT"

635 "MOUNTIN PLATE,LEVER,ROLLER PF,SUPPORT"

636 "EXTENSION SPRING,10.1"

637 "SHEET,INK STOPPER"

638 "HOLDER,ROLLER PF,SUPPORT"

641 "POROUS PAD,PAPER GUIDE,FRONT"

700 PRINT HEAD

701 RETAINING RING

703 "C.B.P-TITE SCREW,3X6,F/ZN"

704 "CABLE,HEAD"

705 "HOLDER,CABLE"

706 "SPACER,CABLE HEAD"

707 "FRAME,ASF"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

708 HOPPER;C

709 EDGE GUIDE;E

710 CORK

711 "SLIDER,EDGEGUIDE"

712 "COMPRESSION SPRING,3.23"

713 "PAD,BREAK,EDGE GUIDE"

714 "SUPPORT PLATE,HOPPER;B"

715 "SPUR GEAR,32"

716 "PAD ASSY.,RIGHT"

717 "LEVER,PAD,RELEASE,RIGHT"

718 "ROD SPRING,HOLDER,PAD"

719 "HOLDER,EDGEGUIDE,RIGHT"

720 "COMPRESSION SPRING,1.17"

721 "EXTENSION SPRING,0.62"

722 "LEVER,PAPERRETURN,RIGHT"

723 "EXTENSION SPRING,0.294"

724 "ROLLER,LD,SUPPORT"

725 "HOLDER,ROLLER,LD,SUPPORT,RIGHT"

726 "PAD ASSY.,LEFT"

727 "LEVER,PAD,RELEASE,LEFT"

728 "HOLDER,EDGEGUIDE,LEFT"

729 "LEVER,PAPERRETURN,LEFT"

730 "HOLDER, ROLLER,LD,SUPPORT,LEFT"

731 "ROLLER ASSY,LD,LEFT"

732 "ROLLER ASSY,LD,RIGHT"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

EPSON Stylus PHOTO 890/1280/1290 Revision C

APPENDIX Parts List 205

733 "COVER,ROLLER,LD,LEFT"

734 "COVER,ROLLER,LD,RIGHT"

735 "COMPRESSION SPRING,1.961"

736 "LEVER,FASTEN,EDGEGUIDE;B"

737 "EXTENSION SPRING,0.088"

738 "SHAFT,ROLLER,LD"

739 "LEVER,HOPPER,RELEASE"

740 "WHEEL,DETECT"

741 "STRENGTHEN PLATE,FRAME,ASF"

742 "C.C.P-TITE SCREW,3X8,F/ZN"

743 "POLUS PAD,FL"

745 "SHEET,PAPERFEED"

746 "HOLDER,SHEET,PAPERFEED"

747 "SHAFT,MOUNT,CR"

748 "C.B.S-TITE(P4),3X6,F/ZN"

749 "HARNESS,ASF"

750 "PAPER SUPPORT,HOPPER"

751 "PAPER GUIDE,LOWER"

752 "POLUS PAD,LARGE"

753 "TRAY,POROUS PAD"

754 "SPACER,TRAY"

758 "EXTENSION SPRING,0.29"

759 "COVER,CARTRIDGE,BK;B"

760 "COVER,CARTRIDGE,C;B"

761 "PLAT SPRING COVER,CARTRIDGE"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

762 "COVER,PLAT SPRING,CARTRIDGE"

763 "DETECTOR,HP;E"

764 CORK;B

765 "CLEANER HEAD,ASP"

766 "POLUS PAD,SMALL"

769 "+,BIND B-TITE SEMS W2,2.5X6,F/ZB"

774 "DUMPER,SUPPORT;B"

775 "SEAT,PAPER EJECT"

776 "POROUS PAD,INK EJECT,PUMP;S"

780 ASF ASSY.;D

781 "PAPER LOADING ASSY.,LEFT"

782 "PAPER LOADING ASSY.,RIGHT"

783 "TRAY ASSEMBLY,POROUS PAD"

800 "MOUNTING PLATE,ROLL PAPER,HOLDER"

801 "FRAME,ROLL PAPER,LEFT"

802 "FRAME,ROLL PAPER,RIGHT"

803 "STOPPER,ROLL PAPER"

805 "SHEET,ROLL PAPER"

Table 7-14. Stylus PHOTO 1280/1290 Parts List

Code Parts Name

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