SP890&1290 Stylus_photo_890,1280,1290_service_manual Stylus Photo 890,1280,1290 Service Manual
User Manual: stylus_photo_890,1280,1290_service_manual
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SERVICE MANUAL Color ink jet printer EPSON Stylus PHOTO 890/1280/1290 Stylus PHOTO 890 Stylus PHOTO 1290/1280 ® SEIJ00025 Notice All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, 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. Copyright © 2000 SEIKO EPSON CORPORATION. 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. A D J U S T M E N T R E Q U IR E D C A U T IO N C H E C K P O IN T W A R N IN G 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. Revision Status Revision Issued Date A November 16, 2000 First Release 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. B C February 8, 2001 D June 4,2002 Description 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. 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 Chapter 2 OPERATING PRINCIPLES 1.1 Overview ............................................................................................................ 11 1.1.1 Features ...................................................................................................... 11 1.1.2 Accessories, Consumable Products, and Options ...................................... 12 2.1 Overview ............................................................................................................ 2.1.1 Printhead Mechanism ................................................................................ 2.1.2 Carriage Mechanism .................................................................................. 2.1.2.1 Carriage Motor (CR Motor) .............................................................. 2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism ..................... 2.1.2.3 Carriage Home Position (HP) Detection ........................................... 2.1.3 Paper Feeding Mechanism ......................................................................... 2.1.3.1 CR Lock Mechanism ......................................................................... 2.1.4 Paper Loading Mechanism ........................................................................ 2.1.4.1 Drive Transmission to the ASF Unit ................................................. 2.1.4.2 Paper Loading Operation .................................................................. 2.1.4.3 Pump Mechanism .............................................................................. 2.1.4.4 Capping Mechanism .......................................................................... 34 35 36 36 37 37 37 39 40 40 41 42 43 2.2 Electrical Circuit Operating Principles .......................................................... 2.2.1 C378PSB/PSE Board ................................................................................. 2.2.1.1 Electrical Circuit ............................................................................... 2.2.1.2 Protection Circuits ............................................................................. 2.2.1.3 Power Supply Control Function ........................................................ 2.2.1.4 Energy Save Mode ............................................................................ 2.2.2 C393MAIN Board Circuit Operation Principles ....................................... 2.2.2.1 Printhead Driver Circuit .................................................................... 2.2.2.2 RTC (Real Time Clock)/ Reset/ EEPROM Circuit ........................... 2.2.2.3 Motor Driver Circuit ......................................................................... 2.2.2.4 ASF/Pump Motor Driver Circuit ....................................................... 2.2.2.5 Sensor Circuit .................................................................................... 44 44 44 46 46 46 47 50 51 52 57 58 1.2 Basic Specifications .......................................................................................... 1.2.1 Printing Specification ................................................................................ 1.2.2 Control Code .............................................................................................. 1.2.3 Paper Feeding ............................................................................................ 1.2.4 Input Data Buffer ....................................................................................... 1.2.5 Paper Specifications ................................................................................... 1.2.5.1 EPSON Special Media ...................................................................... 1.2.6 Printing Area .............................................................................................. 1.2.6.1 Cut Sheet ........................................................................................... 1.2.6.2 Envelopes .......................................................................................... 1.2.7 Adjust Lever .............................................................................................. 1.2.8 Ink Cartridge .............................................................................................. 1.2.9 Electric Specification ................................................................................. 1.2.10 Reliability ................................................................................................ 1.2.11 Environmental Condition ......................................................................... 14 14 14 14 14 15 15 17 17 18 18 19 20 20 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 ......................................................................................................... 1.4.1 Buttons ....................................................................................................... 1.4.2 Indicators ................................................................................................... 1.4.3 Panel Functions .......................................................................................... 1.4.4 Special Setting Mode ................................................................................. 1.4.5 Printer Initialization ................................................................................... 1.4.6 Initialization Value .................................................................................... 28 28 28 28 29 30 30 1.5 Dimension .......................................................................................................... 31 Chapter 3 TROUBLESHOOTING 3.1 Overview ............................................................................................................ 3.1.1 Self-Diagnostic Function ........................................................................... 3.1.1.1 Troubleshooting with LED Error Indicators ..................................... 3.1.1.2 Error Conditions ................................................................................ 3.1.1.3 Remedies for Paper Out Error ........................................................... 61 62 62 62 65 3.1.1.4 Remedies for the Paper Jam Error ..................................................... 3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ........... 3.1.1.6 Remedies for Maintenance Request Error ......................................... 3.1.1.7 Remedies for Fatal Error ................................................................... 3.1.2 Isolating the Faulty Part on the Power Supply Board ................................ 3.1.3 Isolating the Faulty Part according to the Phenomenon ............................ 67 67 68 69 72 72 5.2.1 Parallelism Adjustment ............................................................................ 5.2.1.1 Using PG Adjustment Tool ............................................................. 5.2.1.2 Using Thickness Gauge ................................................................... 5.2.2 Backlash Adjsutment ............................................................................ 5.2.3 Adjustment Program Feature ................................................................... 5.2.3.1 How to Install the Program ............................................................. 5.2.3.2 How to Uninstall the Program ......................................................... 5.2.4 Starting the Service Program ................................................................... 5.2.4.1 Adjusting Program Initial Setting ................................................... 121 121 124 125 127 128 128 128 128 78 78 79 80 81 5.3 Individual Adjustment Program ................................................................... 5.3.1 Head ID .................................................................................................... 5.3.1.1 Head ID Input ............................................................................... 5.3.1.2 Head ID Check ................................................................................ 5.3.2 Bi-Directional Adjustment .................................................................... 5.3.2.1 Input Bi-D Adjustment Value ...................................................... 5.3.2.2 Check Present Adjustment Data ...................................................... 5.3.3 Input/Check USB ID ............................................................................... 5.3.3.1 Input USB ID .................................................................................. 5.3.3.2 Check USB ID ................................................................................. 5.3.4 Maintenance ............................................................................................. 5.3.4.1 Head Cleaning Operation ................................................................ 5.3.5 Ink Charge Operation ............................................................................. 5.3.6 Refurbishment for DOA .......................................................................... 5.3.7 Protection Counter ................................................................................... 5.3.7.1 Check the Present Counter Value .................................................... 5.3.7.2 Clear the Protection Counter Value ................................................ 5.3.8 Appendix Items ........................................................................................ 5.3.8.1 CSIC Information ......................................................................... 5.3.8.2 EEPROM Data Check ................................................................... 5.3.8.3 Changing EEPROM Data .............................................................. 5.3.9 A4 Check Pattern Printing ....................................................................... 130 130 130 132 133 135 136 137 138 138 139 139 140 141 143 143 143 145 145 146 146 147 5.4 Sequential Repair Adjustment Program ...................................................... 5.4.1 Function ................................................................................................... 5.4.1.1 How to start the program ................................................................. 5.4.1.2 Printhead Removal .......................................................................... 5.4.1.3 Printhead Replacement .................................................................... 5.4.1.4 Main Board Replacement ................................................................ 5.4.1.5 Carriage Unit Replacement/ Removal ............................................. 5.4.1.6 CR Motor Replacement ................................................................... 5.4.1.7 Printer Mechanism Replacement .................................................... 149 149 149 150 151 152 152 152 152 Chapter 4 DISASSEMBLY AND ASSEMBLY 4.1 Overview ............................................................................................................ 4.1.1 Precaution for Disassembling the Printer .................................................. 4.1.2 Tools .......................................................................................................... 4.1.3 Specifications for Screws .......................................................................... 4.1.4 Service Checks After Repair ..................................................................... 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 5.4.1.8 Waste Ink Pad Replacement ............................................................ 152 5.4.1.9 Clogged Nozzle Recovery ............................................................... 152 Chapter 6 MAINTENANCE 6.1 Overview .......................................................................................................... 6.1.1 Cleaning ................................................................................................... 6.1.2 Service Maintenance ................................................................................ 6.1.2.1 Head Cleaning ................................................................................. 6.1.2.2 Maintenance Request Error Clear ................................................... 6.1.3 Lubrication ............................................................................................... 155 155 155 155 155 156 Chapter 7 APPENDIX 7.1 Connector Summary ...................................................................................... 7.1.1 Connector Alignment ............................................................................... 7.1.2 Connector Pin Assignment ...................................................................... 7.1.3 EEPROM Address Map ........................................................................... 166 166 166 169 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 1 CHAPTER PRODUCT DESCRIPTIONS EPSON Stylus PHOTO 890/1280/1290 Revision C 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 Figure 1-1. Stylus PHOTO 890 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 1-2. Stylus PHOTO 1280/1290 PRODUCT DESCRIPTIONS Overview 11 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.1.2 Accessories, Consumable Products, and Options Table 1-1. Consumable Products (continued) ACCESSORIES Product Name 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 PRODUCT DESCRIPTIONS Code 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) S041256/S041258/ S041259 S041257 S041260/S041261/ S041262 S041263/S041264/ S041265 EPSON Matte Paper-Heavyweight (Letter) EPSON Matte Paper-Heavyweight (A3)* EPSON Matte Paper-Heavyweight (Super A3/Super B)* 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 Overview 12 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 1-1. Consumable Products (continued) Product Name Code 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)* EPSON Ink Jet Back Light Film (A3)* S041287/S041297 S041286 S041288 S041290 S041289 S041131 OPTIONS Table 1-2. Options Product Name Code Parallel Interface cable (shielded) C83602* USB I/F Interface cable (shielded) C83623* Roll Paper Holder C81106* * The asterisks are substitutions for the last digits of the product name, which may vary by country. PRODUCT DESCRIPTIONS Overview 13 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.2 Basic Specifications * The value is the speed of normal-dot printing. Raster Graphic Mode Table 1-4. Raster Graphics Mode 1.2.1 Printing Specification Print Method: On demand ink jet Model Horizontal Resolution Printable Area Available Dot CR Speed 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 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 Nozzle Configuration Monochrome: 48 nozzles (120 dpi) Color: 48 nozzles x 5 (Cyan, Magenta, Yellow, Light cyan, Light magenta) (120 dpi) Stylus PHOTO 890 The following figure shows nozzle configuration viewed from the back of the printhead: Stylus PHOTO 1280/1290 1.2.2 Control Code ESC/P Raster command EPSON Remote command Figure 1-3. Nozzle Configuration Print Direction 1.2.3 Paper Feeding Bi-direction with logic seeking Print Speed & Printable Columns Character Mode Table 1-3. Character Mode Model 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) Character Pitch Printable Columns LQ Speed Stylus PHOTO 890 10 CPI (Pica) 80 238CPS* 1.2.4 Input Data Buffer Stylus PHOTO 1280/ 1290 10 CPI (Pica) 127 238CPS* 256 KB PRODUCT DESCRIPTIONS Basic Specifications 14 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.2.5 Paper Specifications ENVELOPE The asterisk(*) indicates Stylus PHOTO 1280/1290 use only. Size (Width x Length): #10 DL C6 220 x 132 CUT SHEET Size: See the table below: Table 1-5. Paper Specifications - Cut Sheet Size Specifications (Width x Length) 241.3mm (9 1/2”) x 104.8mm(4 1/8”) 220mm (8.7”) x 110mm (4.3”) 162mm (6.4”) x 114mm (4.5”) 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 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 1.2.5.1 EPSON Special Media B* 279 mm x 432 EPSON offers specifically- designed media for ink jet printers. Letter Half Letter Legal Executive Envelope printing is only available at normal temperature. Keep the longer side of the envelope horizontally at setting. 216 mm (8.5”) x 279 mm (11.0”) 139.7 mm x 215.9 mm 216 mm (8.5”) x 356 mm (14.0”) PHOTO QUALITY INK JET PAPER Size (Width x Length): A3+* A3 * A4 A6 B* Letter Legal 5” x 8” 8” x 10” 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 Note1: Note 2: 329mm x 483mm 297mm x 420mm 210mm x 297mm 105mm x 148mm 210mm x 297mm 216mm x 279mm 216mm x 356mm 127mm x 203mm 203mm x 254mm 89 to 241.3 mm x 89 to 1117.6 mm 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.) PRODUCT DESCRIPTIONS Basic Specifications 15 EPSON Stylus PHOTO 890/1280/1290 Revision C 200 x 300mm Roll Paper 360 DPI INK JET PAPER Size (Width x Length): A3+* A3 * A4 A6 Letter 329mm x 483mm 297mm x 420mm 210mm x 297mm 105mm x 148mm 216mm x 279mm 216mm x 338mm(cut-line) (89mm x 7m, 100mm x 8m, 210mm x 10m, 329mm x 10m*) PHOTO QUALITY ADHESIVE SHEET Size (Width x Length): A4 Letter 210mm x 297mm 216mm x 279mm INK JET TRANSPARENCIES IRON-ON COOL PEEL TRANSFER PAPER Size (Width x Length): A4 Letter 210mm x 297mm 216mm x 279mm Size (Width x Length): A3 * A4 Letter PHOTO QUALITY GLOSSY FILM Size (Width x Length): A3+* A3 * A4 A6 B* Letter 329mm x 483mm 297mm x 420mm 210mm x 297mm 105mm x 148mm 210mm x 297mm 216mm x 279mm PHOTO PAPER PHOTO STICKERS Size (Width x Length): A6 A6 105mm x 148mm /16 105mm x 148mm /4 MATTE PAPER-HEAVYWEIGHT Size (Width x Length): A3+* A3 * A4 B* Letter 100mm x 150mm Roll 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 PRODUCT DESCRIPTIONS 297mm x 420mm 210mm x 297mm 216mm x 279mm Basic Specifications 329mm x 483mm 297mm x 420mm 210mm x 297mm 210mm x 297mm 216mm x 279mm (89mm x 7m, 100mm x 8m, 210mm x 10m, 329mm x 10m*) 16 EPSON Stylus PHOTO 890/1280/1290 Revision C PREMIUM GLOSSY PHOTO PAPER 1.2.6 Printing Area Size (Width x Length): 1.2.6.1 Cut Sheet +A3* A3 * A4 B* Letter Roll Paper 329mm x 483mm 297mm x 420mm 210mm x 297mm 210mm x 297mm 216mm x 279mm (89mm x 7m, 100mm x 8m, 127mm x 8m*,210mm x 10m, 329mm x 10m*) See the figure below and the following tables for the printing area for Stylus PHOTO 890/Stylus PHOTO 1280/1290. PW LM RM INK JET BACK LIGHT FILM TM Size (Width x Length): A3* 297mm x 420mm Printable Area PL BM Figure 1-4. Printable Area for Cut Sheet PRODUCT DESCRIPTIONS Basic Specifications 17 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.2.6.2 Envelopes Table 1-6. Printing Area Left Margin (min.) Right Margin (min.) Top 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 Paper Size Bottom Margin (min.) LM RM TM Printable Area BM Figure 1-5. Printable Area for Envelopes *: Stylus PHOTO 1290 only. 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. Table 1-7. Envelope Margin *1:Bottom 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”) 1.2.7 Adjust Lever Set the adjust lever according to the type of paper as shown in the following table. Table 1-8. Adjust Lever Setting Position Paper PRODUCT DESCRIPTIONS Setting Position Gap Cut sheet, OHP Sheet, Label, Postcard Front (0) 0 mm Envelope Rear (+) +0.9 mm Basic Specifications 18 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.2.8 Ink Cartridge COLOR INK CARTRIDGE BLACK INK CARTRIDGE Note some of the color ink specifications for the Stylus PHOTO 890 and Stylus PHOTO 1280/1290 are different as indicated. The black ink cartridge specifications for Stylus PHOTO 890 and Stylus PHOTO 1280/1290 are common. Type: Exclusive Cartridge Color: Magenta, Cyan, Yellow, Light Cyan, Light Magenta 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 Print Capacity: Storage Temperature Packed (in transit): -30 to 60 oC (within a month at 40 oC, within 120 hours at 60 oC) Packed (storage): Installed: Dimension: -30 to 40 oC (within a month at 40 oC) -20 oC to 40 oC (within a month at 40 oC) 20.1 mm (W) x 66.85 mm (D) x 38.5 mm (H) 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) PRODUCT DESCRIPTIONS Basic Specifications 19 EPSON Stylus PHOTO 890/1280/1290 1.2.9 Electric Specification Revision C 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 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) PRODUCT DESCRIPTIONS Basic Specifications 20 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.2.11 Environmental Condition RESISTANCE TO SHOCK TEMPERATURE Operating: 1G, within 1 ms, X, Y, Z directions Non-operating: 2G, within 2 ms, X, Y, Z directions*1 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. RESISTANCE TO VIBRATION *1: In a shipment container. *2: Refer to Figure 1-6 "Temperature/Humidity Range" for condition. HUMIDITY Operating: 0.15G Non-operating: 0.50G*1 *1: Operating: 20 to 80% RH (without condensation)*2 Not-Operating: 5 to 85% RH (without condensation)*1 In a shipment container. C A U T IO 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. 90 If the printer power is off with the printhead left uncapped, turn 80 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. 70 60 Humidity (%) 50 40 30 20 10 20 27 30 35 40 Temperature (°C) Figure 1-6. Temperature/Humidity Range *1: In a shipment container. *2: Refer to Figure 1-6 "Temperature/Humidity Range" for condition. PRODUCT DESCRIPTIONS Basic Specifications 21 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.3 Interface Table 1-9. Parameters The EPSON Stylus PHOTO 890/1280/1290 provides USB and parallel interfaces as standard. 1.3.1 Parallel Interface (Forward Channel) Parameter Minimum Maximum tsetup 500ns - thold 500ns - tstb 500ns - Transmission Mode: 8 bit parallel, IEEE-1284 compatibility mode tready 0 - Synchronization: By STROBE pulse tbusy - 500ns Handshaking: By BUSY and ACKNLG signal tt-out* - 120ns Signal Level: TTL compatible level tt-in** - 200ns Adaptable Connector: 57-30360 (amphenol) or equivalent treply 0 - tack 500ns 10us tnbusy 0 - tnext 0 - data byte n DATA data byte n+1 thold -STROBE tsetup tnext tstb * 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. BUSY tready tbusy Table 1-10. Typical Time of Tack -ACKNLG treply tack tnbusy Figure 1-7. Data Transmission Timing PRODUCT DESCRIPTIONS Interface Parallel I/F Mode Typical Time of tack High Speed 0.5us Normal Speed 2us 22 EPSON Stylus PHOTO 890/1280/1290 Revision C 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 * 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. PRODUCT DESCRIPTIONS Interface 23 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 1-12. Connector Pin Assignment and Signals Pin No. Signal Name Return GND Pin In/Out 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 31 -INIT 30 In 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. Functional Description Pulled up to +5V via 3.9K ohm resister. The falling edge of a negative pulse or a low signal on this line causes the printer to initialize. Minimum 50us pulse is necessary. NOTE: In/Out refers to the direction of signal flow seen from the printer side. PRODUCT DESCRIPTIONS Interface 24 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.3.2 Parallel Interface (Reserve Channel) Transmission Mode: IEEE-1284 nibble mode Handshaking: Refer to the IEEE-1284 specification Adaptable Connector See forward channel. Data Trans. Timing: Refer to the IEEE-1284 specification Synchronization: Refer to the IEEE-1284 specification Signal Level: IEEE-1284 level 1 device (See forward channel.) Table 1-13. Connector Pin Assignment and Signals Pin No. Signal Name Return GND Pin In/Out 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 36 1284-Active 30 In 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 Functional Description Data available signal and reverse channel transfer data bit 0 or 4. 1284 active signal. 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: PRODUCT DESCRIPTIONS Interface 00H: Request Nibble Mode Reverse Channel Transfer. 04H: Request Device ID; Return Data Using Nibble Mode Rev Channel Transfer. 25 EPSON Stylus PHOTO 890/1280/1290 Device ID: The printer sends the following device ID string when requested. Revision C 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) MDL: Stylus[SP]Photo[SP]890 /Stylus[SP]Photo[SP]1290 Data encoding: NRZI Adaptable connector: USB Series B CLS: PRINTER Recommended cable length:2 meters When IEEE1284.4 is enabled, <00H><5AH>*1/ <00H><5CH>*2 MFG: EPSON CMD: ESCPL2,BDC,D4 DES: EPSONStylus[SP]Photo[SP]890 /EPSONStylus[SP]Photo[SP]1290 When IEEE1284.4 is enabled, <00H><57H>*1/ Table 1-14. Connector Pin Assignment and Signals <00H> <59H>*2 MFG: EPSON Pin No. Signal Name I/O 1 VCC - 2 -Data Bi-D Data 3 +Data Bi-D Data, pull up to +3.3 V via 1.5K ohm resistor. 4 Ground - CMD: ESCPL2,BDC,D4 MDL: Stylus[SP]Photo[SP]890 /Stylus[SP]Photo[SP]1290 CLS: PRINTER Function Description Cable power. Max. power consumption is 2mA. Cable ground DES: EPSONStylus[SP]Photo[SP]890 /EPSONStylus[SP]Photo[SP]1290 *1: Stylus PHOTO 890 only *2: Stylus PHOTO 1280/1290 only Pin #2 Pin #1 Pin #3 Pin #4 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. Figure 1-8. USB Pin Assignment PRODUCT DESCRIPTIONS Interface 26 EPSON Stylus PHOTO 890/1280/1290 Revision C On 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. 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. 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. PRODUCT DESCRIPTIONS Interface 27 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.4.3 Panel Functions 1.4 Operations Table 1-15. Panel Functions 1.4.1 Buttons Buttons Function Roll Paper button Maintenance button Maintenance Ink Cartridge replacement button Power button Roll Paper 1.4.2 Indicators Power Lights when the operating switch is “ON” and AC power is supplied. Error Ink Cartridge Replacement Lights during the error condition, and blinks during the ink low condition. Ink Cartridge replacement button *1: Error indicator • 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 Maintenance Roll Paper Power button Maintenance + Roll Paper Maintenance button • 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. Press the button for 3 seconds. Power indicator Roll Paper button • 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. Pressing with Power On Function • Starts status printing*2. • Changes code pages /select IEEE1284.4 mode for parallel I/F*3. • Enters the special settings mode. (Factory use only). *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. Figure 1-9. Control Panel PRODUCT DESCRIPTIONS Operations 28 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 1-17. Content of 1BH of EEPROM [bit7] [bit6] Actions 00 11 Prints firmware version, ink counter, selected code page and nozzle check pattern. 01 Starts the hex-dump mode. 10 Starts the self test mode. 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. Table 1-18. Special Setting Mode Buttons *4: Factory default setting. *1: Functions Maintenance • Initializes the EEPROM and Timer IC. Roll Paper*1 • Resets the ink overflow counter (Protection Counter) in the EEPROM. 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) PRODUCT DESCRIPTIONS Operations 29 EPSON Stylus PHOTO 890/1280/1290 Revision C 1.4.5 Printer Initialization 1.4.6 Initialization Value EPSON Stylus PHOTO 890/1280/1290 executes initialization by using 3 methods mentioned below. 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. 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. 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) Clears input data buffer. Left margin 1st column Clears print buffer. Character pitch 10 cpi Sets default values. Print mode Text mode (Non graphics mode) Initializes printer mechanism. 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. PRODUCT DESCRIPTIONS Operations 30 EPSON Stylus PHOTO 890/1280/1290 Revision C 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 Figure 1-10. Stylus PHOTO 890 in Use Stylus PHOTO 1280/1290:8.4 kg Figure 1-11. Stylus PHOTO 1280/1290 in Use PRODUCT DESCRIPTIONS Dimension 31 EPSON Stylus PHOTO 890/1280/1290 PRODUCT DESCRIPTIONS Revision C Dimension 32 2 CHAPTER OPERATING PRINCIPLES EPSON Stylus Photo 890/1280/1290 Revision C 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: Stylus Photo 1290: 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. M4T12 M4S61 Main board: Rotary Encoder Intermittent Gear Stylus Photo 890 : C393MAIN-C/C393MAIN-B Stylus Photo 1290: C393MAIN/C393MAIN-B Power supply board: PF Drive Gear (high precision) Photo Interrupter (Encoder) PF Motor Pinion Detector Wheel PF Motor C378PSB/PSE Board Flashing Window (at 80th or 136th column) Photo Interrupter (Encoder) PRINTER MECHANISM ASF Sensor LD Roller Shaft Notched Roller 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. Loading Rollers Table 2-1. Motor Types and Corresponding Applications Table 2-2. Motor Name Type CR motor 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. 4-Phase / 48-pole stepping motor Printhead PE Sensor Application / Feature DC motor with brush Pump/ASF motor Carriage Unit Timing Belt Cap Unit (without a valve) Pump/ASF Motor Pump Unit 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. CR Guide Shaft PF Roller CR Motor PG Lever ASF/Pump Disengage Gear Train Liner Scale Figure 2-1. Printer Mechanism Block Diagram OPERATING PRINCIPLES Overview 34 EPSON Stylus Photo 890/1280/1290 Revision C Ink Cartridge 2.1.1 Printhead Mechanism An ink cartridge stores ink to be supplied to the printhead. 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. 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 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. 4) Accumulated installation time of the cartridge 5) Model name of the printer in use 6) Ink cartridge production information Printhead CSIC PZT Nozzle Selector Circuit Board Driven by the print signal from the control circuit board, it ejects ink from the nozzle plate. CSIC Connection Circuit Ink Cartridge Nozzle plate Ink Supply Needle 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 Nozzle Plate 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. PZT Figure 2-2. Printhead Mechanism OPERATING PRINCIPLES Overview 35 EPSON Stylus Photo 890/1280/1290 Revision C 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. Photo Coupler 2.1.2.1 Carriage Motor (CR Motor) CR Motor Carriage Unit Linear Encoder 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 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 Adjust Lever Parallelism Adjustment Bushing Platen Surface Carriage Guide Shaft Eccentric Shaft Op03 Figure 2-3. Carriage Mechanism (Top view) 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. OPERATING PRINCIPLES Overview 36 EPSON Stylus Photo 890/1280/1290 Revision C 2.1.2.2 Platen Gap (PG) /Parallelism Adjustment Mechanism 2.1.3 Paper Feeding 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. 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 Table 2-8. Item Table 2-5. Platen Gap Adjust Lever Setting Table 2-6. Description Motor type DC Motor with Brush Drive voltage +42V +/- 5% (Applied to the driver) Lever Position PG adjustment value Coil Resistance 29.2ohm +/- 25% Front (0) 0 mm (=PG is 1.2 mm) Inductance 30.0mH +/- 25% Rear (+) + 0.9 mm (=PG is 2.1 mm) Control method Constant current chopping drive 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. 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 OPERATING PRINCIPLES Overview 37 EPSON Stylus Photo 890/1280/1290 Revision C Figure 2-4 gives the paper feeding mechanism block diagram, showing the parts along the PF motor drive transmission paths. Paper Eject Roller Combination Gear (13.5, 308) [Previous Models] PF Roller Printhead Support Roller Platen Surface Notched Roller Spur Gear (76) Paper Front Paper Guide PF Motor PF Motor Pinion Gear Paper Eject Roller Paper Eject Roller PF Roller Bottom Margin (3 mm) [Stylus Photo 890/1290] 5° 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. OPERATING PRINCIPLES Overview Steady Feeding Figure 2-5. Paper Transportation 38 EPSON Stylus Photo 890/1280/1290 Revision C 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. Right Side View Top View CR Lock Lever After Power-On Bushing 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. Paper Eject Roller Middle Frame 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. OPERATING PRINCIPLES Overview Figure 2-6. CR Lock Mechanism 39 EPSON Stylus Photo 890/1280/1290 Revision C 2.1.4 Paper Loading Mechanism 2.1.4.1 Drive Transmission to the ASF Unit 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. 1) The CR unit moves to the right end of the CR shaft, which then pushes the DE lock lever to the right end. 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% 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. The rotation directions in order to drive ASF unit/ Pump mechanism are as shown below. Combination Gear 14, 28 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 *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 Planetary Gear 15.2 Unit A DE Lock Lever ASF-Pump Motor Pinion Gear 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. OPERATING PRINCIPLES Combination Gear 12, 22.4 Combination Gear 17.19, 25.6 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. Overview 40 EPSON Stylus Photo 890/1280/1290 Revision C 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. Hopper Hopper Spring LD Roller 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.) 2 3 Pad Spring Paper Return Lever Pad Standby State * 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. OPERATING PRINCIPLES Pinch Roller Cam 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.) Paper Load State PF Roller Paper Feeding State Flowchart 2-1. Multiple Paper Loading Prevention Mechanism Overview 41 EPSON Stylus Photo 890/1280/1290 Revision C Torque transmission to the pump unit 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 torque from the ASF/Pump motor is transmitted to the pump mechanism as described below: 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. 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 Table 2-11. ASF/Pump Motor Functions Directions Corresponding Functions Counterclockwise • Absorbs ink. • Sets the wiper. Clockwise • Releases tube. • Resets the wiper. DE pump mechanism and operating principle are as shown in the figure below. Combination Gear 14, 28 Combination Gear 12, 22.4 Planetary Gear 15.2 A DE Lock Lever Tension Belt Figure 2-9. Pump Operating Principle ASF/Pump Motor Pinion Gear Combination Gear 17.19, 25.6 Pump Unit Gear Figure 2-8. Torque to the Pump Mechanism OPERATING PRINCIPLES 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. Overview 42 EPSON Stylus Photo 890/1280/1290 Revision C 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. Stylus Photo 890/1290 Previous Models Negative pressure is released here. Ink Ejection Hole Ink Ejection Hole Valve Closed state Released state There is no air valve assembled. Figure 2-10. Valveless Capping Mechanism OPERATING PRINCIPLES Overview 43 EPSON Stylus Photo 890/1280/1290 Revision C 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. 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 Table 2-13. C393PNL Panel Panel Board Board Voltage Printer Printer Mechanism +42VDC ± 2VDC CR Motor C393MAIN C393MAIN / C393MAIN-B/ C393MAIN-B/ C393MAIN-C Control Board PF Motor +5VDC ± 0.25VDC ASF/Pump Motor Application • • • • CR Motor ASF/Pump Motor PF Motor Head driving power supply • • • • Logic sensor circuit Panel LED Nozzle selection circuit (on the printhead) I/F control circuit 3.3V Regulator Head Driver Circuit Sensors Power OFF +5VDC 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. +42VDC C378PSB/PSE Power Supply Board Figure 2-11. Electric Circuit of Stylus COLOR 890/1290 OPERATING PRINCIPLES Electrical Circuit Operating Principles 44 EPSON Stylus Photo 890/1280/1290 Revision C Figure 2-12 shows the block diagram for the C378PSB/PSE board. 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 ACplug 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. Figure 2-12. C378PSB/PSE Board Block Diagram OPERATING PRINCIPLES Electrical Circuit Operating Principles 45 EPSON Stylus Photo 890/1280/1290 Revision C 2.2.1.2 Protection Circuits 2.2.1.3 Power Supply Control Function 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. 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: +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. 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. +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. OPERATING PRINCIPLES Electrical Circuit Operating Principles 46 EPSON Stylus Photo 890/1280/1290 Revision C 2.2.2 C393MAIN Board Circuit Operation Principles The C393MAIN board includes the following: Logic circuit (CPU, ASIC, DRAM, EEPROM, and so on) 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. Various motor control/driver circuits (CR motor, PF motor, and ASF/Pump motor) CR Encoder senser Head control/driver circuits Head Interface circuit (parallel I/F, USB I/F) Sensor circuit CR1 Timer circuit Timer & Reset IC (IC4) 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 Table 2-15. +5V Sensors USB I/F Circuit (Except high speed) PNL Board OPERATING PRINCIPLES IC4 IC7 E0BA13KA 3.3V CPU ASIC P-ROM D-RAM RTC/Reset/EEPROM USB I/F Circuit (During high speed) Figure 2-13. Block Diagram for the C393MAIN Board (For Stylus Photo 1290 only) Electrical Circuit Operating Principles 47 EPSON Stylus Photo 890/1280/1290 Revision C CR Encoder senser CR Encoder senser Head Head CR1 CR1 Timer & Reset IC (IC4) Timer & Reset IC (IC4) IC4 IC4 IC7 E0BA13KA IC7 E0BA13KA Figure 2-14. Block Diagram for the C393MAIN-B Board (For Stylus Photo 890/1290) OPERATING PRINCIPLES Figure 2-15. Block Diagram for the C393MAIN-C Board (For Stylus Photo 890 only) Electrical Circuit Operating Principles 48 EPSON Stylus Photo 890/1280/1290 Revision C Table 2-16 shows the major ICs on the C393MAIN Board and their functions. Table 2-16. Major Element on C393MAIN IC CPU (HD6412670) (C393MAIN/ C393MAIN-C) ASIC (E05B87**) (C393MAIN/ C393MAIN-C) OPERATING PRINCIPLES Location Functions 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. 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. • CPU and ASIC are built in in the IC. ASIC (E01A20CA**) IC19 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. Electrical Circuit Operating Principles 49 EPSON Stylus Photo 890/1280/1290 Revision C Head common driver circuit 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. 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. Figure 2-16. Printhead Driver Circuit OPERATING PRINCIPLES Electrical Circuit Operating Principles 50 EPSON Stylus Photo 890/1280/1290 Revision C 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. +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. 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. OPERATING PRINCIPLES Electrical Circuit Operating Principles 51 EPSON Stylus Photo 890/1280/1290 Revision C 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. op13b Figure 2-19. CR Motor Driver Block Diagram (C393MAIN-B) Figure 2-18. CR Motor Driver Circuit Block Diagram (C393MAIN) OPERATING PRINCIPLES Electrical Circuit Operating Principles 52 EPSON Stylus Photo 890/1280/1290 Revision C 1/180” 1/720” Phase A 1/360” Backward Rotation (Counterclockwise) Phase B Forward Rotation (Clockwise) Phase A Phase B Lens Photo Photo Diodes Diodes LED Comparators A + A B + B - 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. Phase A 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: OPERATING PRINCIPLES Electrical Circuit Operating Principles 53 EPSON Stylus Photo 890/1280/1290 Revision C ASIC(IC19) detects the motor control current value is 720mA. P1 (= number of pulses output during the above carriage movement) is 1/180” 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: Phase A A Phase Phase B B Phase ASIC(IC19) detects the motor control current value is 500 mA. Difference between P1 and P2 (= number of pulses output while the CR 1/360” 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. Figure 2-22. Print Timing Signal and Linear Encoder Phase A 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. OPERATING PRINCIPLES Electrical Circuit Operating Principles 54 EPSON Stylus Photo 890/1280/1290 Revision C 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: op13b Figure 2-24. PF Motor Driver Circuit Block Diagram (C393MAIN-B) Figure 2-23. PF Motor Driver Circuit Block Diagram (C393MAIN) OPERATING PRINCIPLES Electrical Circuit Operating Principles 55 EPSON Stylus Photo 890/1280/1290 Revision C 1/1440” 1/5760“ Phase A Phase B Forward Rotation (Clockwise) Phase A Phase B Backward Rotation (Counterclockwise) Lens Photo Diodes LED Comparators Comparators A A + - Phase A B B + - Phase B Figure 2-25. PF Motor Driver Circuit Block Diagram (C393MAIN-C) op25 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. Figure 2-26. Loop Scale Encoder Pulse 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 OPERATING PRINCIPLES Electrical Circuit Operating Principles 56 EPSON Stylus Photo 890/1280/1290 Revision C 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) OPERATING PRINCIPLES Figure 2-28. ASF/Pump Motor Circuit Block Diagram (C393MAIN-B) Electrical Circuit Operating Principles 57 EPSON Stylus Photo 890/1280/1290 Revision C 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 2-30. Sensor Circuit Block Diagram (C393MAIN-B) Figure 2-29. Sensor Circuit Block Diagram (C393MAIN/C393MAIN-C) OPERATING PRINCIPLES Electrical Circuit Operating Principles 58 EPSON Stylus Photo 890/1280/1290 Revision C 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. 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. 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 OPERATING PRINCIPLES Electrical Circuit Operating Principles 59 3 CHAPTER TROUBLESHOOTING EPSON Stylus Photo 890/1280/1290 Revision C 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. START START Table 3-1. Motor Resistance and Measurement Procedure Motor 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 Troubleshooting with LED error indicators Sensor Isolating the defective parts on the power supply board Connector to check PE Sensor Checkpoints Corresponding condition LOW Paper present HIGH Paper out LOW In the ASF home position HIGH Out of the ASF home position CN5, Pin 1 &2 Isolating the problem with exhibited phenomenon ASF Sensor Signal level CN6, Pin 1 &2 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. TROUBLESHOOTING Overview 61 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-3. Error Indication of Operation Panel 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 Indicators Printer Status Maintenance Request (Ink Overflow Counter error) Priority Power Error Alt Blink Alt Blink 2 Off On 1 Blink2 Blink2 - Fatal Error l Special setting Table 3-3. Error Indication of Operation Panel Indicators Printer Status Priority 3.1.1.2 Error Conditions Power Error On - 11 Ink sequence Blink - 7 Ink Cartridge replacement mode Blink - 6 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. Data Processing Blink - 10 Each error condition is described below: Paper Out*1 - On 5 Paper Jam*1 - On 5 On 4 Power On condition Double Feed Error*1 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 (Black)*1 - On->Blink 9 Ink Level Low (Black) - Blink->Blink 9 Ink End Ink End (Color)*1 - On->Blink2 9 Ink in black/color cartridge ends. Ink Level Low (Color) - Blink->Blink2 9 Remaining level of ink is low. In this case, the printer warns of the condition with 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 TROUBLESHOOTING 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. Overview 62 EPSON Stylus Photo 890/1280/1290 Revision C 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. C A U T IO 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. 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 TROUBLESHOOTING Overview 63 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-4. Error Condition and Possible Causes No. Error Possible Causes Refer to: 1 Paper Out 1. 2. 3. 4. 5. Failure in paper loading PE sensor connector is disconnected. Sensor actuator is not acting properly or sensor bracket is not installed correctly. PE sensor is defective. ASF operates abnormally. Table 3-5 2 Paper Jam 1. 2. 3. 4. 5. Paper length is beyond the specifications. The sensor is left on because paper dust or other foreign matter is lodged. Sensor actuator is not acting properly or sensor bracket is not installed correctly. PE sensor is defective. Hopper release lever is not attached properly. Table 3-6 3 Ink End / No Ink Cartridge 1. 2. 3. 4. CSIC is not connected properly. CSIC is defective. Head FPC is defective. Control board is defective. Table 3-7 4 Maintenance Request Protect counter is showing limit. 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. TROUBLESHOOTING Overview Table Table 3-9 64 EPSON Stylus Photo 890/1280/1290 Revision C 3.1.1.3 Remedies for Paper Out Error Table 3-5. 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: Step 1 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. Problem Check & Actions 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. 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. CL Sheet Non-adhesive Non-adhesive Area Area Base Base Sheet Sheet (Postcard) (Postcard) Adhesive Area Staples This side down 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. Cloth moistened with alcohol Check if the connector (yellow, 3-pin) for the PE sensor is connected to PE sensor or CN5 on the Main Board. PE Sensor Connector Torsion SpringDitto TROUBLESHOOTING Overview 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. 65 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-5. Remedies for Paper Out Error (continued) Step Problem Check & Actions 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 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. TROUBLESHOOTING Overview 66 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-6. Remedies for Paper Jam Error 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. Step 2 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. Problem Check & Actions 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. PE Sensor Lever 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. Table 3-6. Remedies for Paper Jam Error Step 1 Problem Check & Actions 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. Paper Guide Assy. PF Roller 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. Right ASF Hopper Left ASF Hopper 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. TROUBLESHOOTING Overview 67 EPSON Stylus Photo 890/1280/1290 Revision C 3.1.1.6 Remedies for Maintenance Request 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. 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 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. 1 TROUBLESHOOTING Table 3-8. Remedies for Maintenance Request Error Overview 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. 68 EPSON Stylus Photo 890/1280/1290 Revision C 3.1.1.7 Remedies for Fatal Error A fatal error is basically caused by any of the following conditions: Table 3-9. Remedies for Fatal Error Step The printer fails to detect the CR home position. 1 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. Problem Check & Actions 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. Linear Encoder Board 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. 2 Ditto 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. • Check that the linear encoder belt passes through the slot in the sensor. • Check that the sensor is free from dust and paper debris. • 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. ASF Frame (Left) ASF Sensor Control Board Connector 1 Connector 2 (CN6) TROUBLESHOOTING Overview 69 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-9. Remedies for Fatal Error (continued) Step 4 Problem Table 3-9. Remedies for Fatal Error (continued) Check & Actions Ditto Step Turn the printer on and check for the correct voltages at the pins shown in the figure below: 5 CN6 Problem Check & Actions 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 To Pin 3 (ASFV) To Pin 2 (GND) • 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. Encoder Output Waveform 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: Resistance: 29.2Ω ± 25% CR CR Motor Motor TROUBLESHOOTING Overview 70 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-9. Remedies for Fatal Error (continued) Step 7 Table 3-9. Remedies for Fatal Error (continued) Problem Check & Actions Step 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: 9 Resistance: 29.2Ω ± 25% PF PF Motor Motor Problem Check & Actions 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: Stylus Photo 890 Stylus Photo 1290 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. Resistance: 10.4 Ω ± 10% Step 1 10 To Pin 3 To Pin 1 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. Tension Spring (0.618) To Pin 2 Step 2 CR Motor To Pin 4 DE Lock Lever NOTE: Be sure to measure the resistance at each pair of points shown above. TROUBLESHOOTING Overview 71 EPSON Stylus Photo 890/1280/1290 Revision C 3.1.2 Isolating the Faulty Part on the Power Supply Board This section explains how to troubleshoot the following problems: 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. 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. Table 3-11. Phenomenons Exhibited Be sure to troubleshoot in the order specified since the steps are listed in the disassembly order to facilitate the job. No. 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. 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 - TROUBLESHOOTING 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 4 Cleaning does not solve the print problem. Table 3-15 Replace the Power Supply Board with a new one. Overview 72 EPSON Stylus Photo 890/1280/1290 Revision C 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. Table 3-13. PF Motor does not Work Step • If the waveform appears as shown, replace the CR motor. • If not, replace the main control board. TROUBLESHOOTING 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. Overview 73 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-15. Cleaning Does not Solve the Problem 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. Step Checkpoint Action 1 Run the head cleaning Run the head cleaning by pressing the Cleaning button. 7 or 8 times repeatedly. 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. Drive the ASF/Pump motor and check that the waveform shown below is output from each pin of CN15. Check that the connectors are not connected aslant. 4 • If the waveform appears as shown, replace the ASF/Pump motor. • If not, replace the main control board. 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. Dust Damage Rubber part TROUBLESHOOTING Overview 74 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-15. Cleaning Does not Solve the Problem (continued) Step 5 Checkpoint Action 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. Compression Spring Cap Unit 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? Cap Unit TROUBLESHOOTING Ink Tube Overview 75 EPSON Stylus Photo 890/1280/1290 Revision C Table 3-15. Cleaning Does not Solve the Problem (continued) Step 7 Checkpoint Action 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. Step Head Board 8 Check if the head driver is defective. TROUBLESHOOTING Table 3-15. Cleaning Does not Solve the Problem (continued) 9 Head FFCs Checkpoint Action 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. 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. Overview 76 4 CHAPTER DISASSEMBLY AND ASSEMBLY EPSON Stylus Photo 890/1280/1290 Revision C 4.1.1 Precaution for Disassembling the Printer 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”. See the precautions given under the heading “WARNING” and.“CAUTION” in this section when disassembling or assembling EPSON Stylus Photo 890/1280/1290. W A R N IN G 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. DISASSEMBLY AND ASSEMBLY Overview 78 EPSON Stylus Photo 890/1280/1290 C A U T IO N Revision C 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. 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. 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) NOTE: *1: Common cartridge with Stylus Photo 870/1270. Common cartridge with Stylus Photo 870. *3: Common cartridge with Stylus Photo 1270. *2: DISASSEMBLY AND ASSEMBLY Overview 79 EPSON Stylus Photo 890/1280/1290 Revision C 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 DISASSEMBLY AND ASSEMBLY Overview 80 EPSON Stylus Photo 890/1280/1290 Revision C 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? 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 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 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 Are adjusted conditions all right? Checked / Not necessary Is lubrication applied to the specified locations? Checked / Not necessary Is the quantity of lubrication adequate? Checked / Not necessary Carriage mechanism Printer units Paper feeding mechanism Adjustment Specified adjustment items Lubricant Specified lubricated item Function ROM version Newest version: Checked / Not necessary Ink cartridges are the ink cartridges installed correctly? Checked / Not necessary Shipment package 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 DISASSEMBLY AND ASSEMBLY Overview 81 EPSON Stylus Photo 890/1280/1290 Revision C 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. START START HOUSING Removal Circuit Board Assembly Removal MOTOR ASSEMBLY, CR Removal Printhead Unit Removal Panel Unit Removal DE Unit Removal TRAY, ABSORBER ASSEMBLY Removal PE Sensor Unit Removal Ink Unit Removal MOTOR ASSEMBLY, ASF Removal ASF Unit Removal BOARD ASSEMBLY, ENCODER Removal SHAFT, ROLLER, LD Removal ROLLER ASSEMBLY, LD, RIGHT/LEFT Carriage Unit Removal ROLLER, PF Removal MOTOR ASSEMBLY, PF Removal Figure 4-1. Flowchart of Disassembly DISASSEMBLY AND ASSEMBLY Disassembly Procedures 82 EPSON Stylus Photo 890/1280/1290 Revision C 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. CBS (3x10) C A U T IO N C H E C K P O IN T When removing HOUSING, push it to the rear a little first, and then lift it up. 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) Figure 4-2. HOUSING Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 83 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.2 Circuit Board Assembly Removal 4. Disconnect all cables from the connectors on the main board and power supply board. 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. CN1(AC Source connector on the power supply board) 1. Remove HOUSING. (Refer to Section 4.2.1.) CN6 (ASF sensor) 2. Remove the screws (CBS, 3x6) securing the M/B Unit to the printer mechanism. Refer to Figure 4-3. CN15 (ASF/Pump motor) CN5 (PE sensor) CN8 (Head FFC) Stylus Photo 890: 7 screws Stylus Photo 1290: 8 screws COVER, CABLE CN9 (Head FFC) CN19 (from the secondary side of the PS board) COVER, CBS (3x6) CN11 (Panel Unit) CN12 (PF Encoder Sensor) CBS (3x6) 5. CBS (3x6) After removing BOARD ASSY, MAIN without cables, remove SHIELD PLATE, M/B Unit from the printer mechanism. CBS (3x6) 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. DISASSEMBLY AND ASSEMBLY Disassembly Procedures 84 EPSON Stylus Photo 890/1280/1290 Revision C C378PSB/PSE Board C A U T IO N CBS (3x6) C393MAIN Board 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 IR E D SHIELD PLATE, M/ Earth Plate Earth Plate CP (3x6) 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. 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: 3 screws: CBS (3x6) CP (3x6) C378PSB/PSE Board: Total 4 screws (CBS, 3x6) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 85 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.3 Panel Unit Removal C H E C K P O IN 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: 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. Remove the harness for the Panel Unit from the frame in the printer mechanism. C H E C K P O IN T COVER, When installing the harness to the printer mechanism, be sure to stick it along the marking line on the frame. COVER, CABLE; B Marking Line Harness Opening Opening Figure 4-5. Setting the Cables to the Cable Covers 3. 4. DISASSEMBLY AND ASSEMBLY Remove 4 screws (CBS, 3x6) securing the Panel Unit together with HOUSING, REINFORCING, RIGHT to the printer mechanism. Release the hook for the for HOUSING, REINFORCING, RIGHT from the square cutout in the printer mechanism. Disassembly Procedures 86 EPSON Stylus Photo 890/1280/1290 5. Revision C 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. 6. Remove 2 screws (CBP, 3x8) securing SHIELD PLAT, PANEL to the Panel Unit, and then remove SHIELD PLATE, PANEL. CBS (3x6) SHIELD PLATE, PANEL CBP (3x8) CBP (3x8) Pins BOARD ASSEMBLY, PANEL Cup P-Tite (3x6) Harness Panel Unit Figure 4-7. BOARD ASSEMBLY, PANEL Removal CBS (3x6) 7. 8. Remove screws (CBP, 3x8 & Cup P-Tite, 3x6) securing BOARD ASSEMBLY PANEL to the Panel Unit. Disconnect the harness from BOARD ASSEMBLY, PANEL. C A U T IO N HOUSING, REINFORCING, RIGHT CBP (3x8) Cutout 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. Figure 4-6. Panel Unit Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 87 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.4 Printhead Unit Removal 1. Remove HOUSING. (Refer to Section 4.2.1.) 2. 3. 4. Set the PG lever to the rear. Using tweezers, put the CR lock lever down to unlock the carriage. Release the three hooks (A, B, C) fixing HOLDER, CABLE to the carriage, and remove HOLDER, CABLE. HEAD CBP (3x6) Head FFC HOLDER, CABLE C B CBB (W2) M2.5x6 A Figure 4-10. HEAD Removal Figure 4-8. Printhead Removal 5. 6. Disconnect the head FFC from the connector on the printhead. Remove the FFC from the BOARD ASSEMBLY, ENCODER. 7. 8. Move the carriage to the left end of the printer manually. Remove 2 screw (CBP, 3x6 & CCB Sems W2, 2.5x6) securing the printhead to the carriage, and remove the printhead. A D J U S T M E N T R E Q U IR E D BOARD ASSEMBLY, ENCODER 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) FFC Figure 4-9. Encoder FFC Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 88 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.5 TRAY, ABSORBER ASSEMBLY Removal 6. 1. Remove HOUSING. (Refer to Section 4.2.1.) 7. 2. 3. Remove the Panel Unit. (Refer to Section 4.2.3.) Remove 2 screws (CBS, 3x6) securing HOUSING, PANEL, LEFT to the front left part of the printer mechanism. 8. Pin Remove 2 screws (CBS, 3x6) securing HOUSING, SUB, LEFT to the printer mechanism. 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. 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. Hook in TRAY, ABSORBER CBS (3x6) FRAME, CBP (3x8) CBP (3x8) HOUSING, PANEL, LEFT Figure 4-11. HOUSING, PANEL, LEFT Removal 4. 5. Remove 1 screw (CBP, 3x8) securing HOUSING, PANEL, LEFT to the HOUSING, SUB, LEFT. Release the pin fixing HOUSING, PANEL, LEFT to the printer mechanism, and then remove HOUSING, PANEL, LEFT toward the front. C A U T IO N ABSORBER, WASTE INK, LARGE/SMALL TRAY, ABSORBER CBP (3x8) 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. SPACER, TRAY PAPER GUIDE, LOWER Figure 4-12. TRAY, ABSORBER ASSEMBLY Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 89 EPSON Stylus Photo 890/1280/1290 Revision C 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 IO N A D J U S T M E N T R E Q U IR E D 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. 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. DISASSEMBLY AND ASSEMBLY Disassembly Procedures 90 EPSON Stylus Photo 890/1280/1290 Revision C 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. 3. Remove the Panel Unit. (Refer to Section 4.2.3.) Remove SHEET, INK STOPPER. FRAME, MIDDLE CBS (3x6) FRAME, TOP CBS (3x6) SHEET, INK STOPPER Ink Unit CBS (3x6) Figure 4-13. SHEET, INK STOPPER Removal 4. 5. 6. 7. 8. Remove TRAY, ABSORBER ASSEMBLY. (Refer to Section 4.2.5.) Remove the three screws (CBS, 3x6) securing the Ink Unit to the FRAME, MIDDLE. Remove 3 screws (CBS, 3x6) securing the Ink Unit to FRAME, TOP. Then remove the Ink System Assembly. Release the hook fixing the Cap Assembly to the Ink Unit, and then remove the Cap Assembly. Disconnect the tube from the Cap Assembly. DISASSEMBLY AND ASSEMBLY Disassembly Procedures Hook in the Cap Assembly Figure 4-14. Ink Unit Removal 91 EPSON Stylus Photo 890/1280/1290 C A U T IO N 1. Revision C 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. 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. About 45° 2. C H E C K P O IN T 1. 2. 3. 4. 5. 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. 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.) 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. When assembling, be careful not to crush or leave any stress on the ink tube that connects the Pump Unit and Cap Assembly. Also, After installing the Pump Unit, ensure that CLEANER, HEAD moves back and forth with rotation of the gear. About 60-90° ABSORBER, SLIDER, CAP Figure 4-15. Setting the ABSORBER, SLIDER, CAP Cap Assembly Pump Unit Ink Tube Figure 4-16. Ink Tube Installation (1) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 92 EPSON Stylus Photo 890/1280/1290 Revision C Tube is not stretched out. Tube is not bent. Figure 4-17. Ink Tube Installation (2) Pump Unit Marking line on the tube 2 mm Figure 4-18. Connecting the Tube to the Pump Unit DISASSEMBLY AND ASSEMBLY Disassembly Procedures 93 EPSON Stylus Photo 890/1280/1290 Revision C 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. Push the HOLDER, PULLEY, DRIVEN to loosen the CR Timing Belt, and then disengage the timing belt from the pulley on the CR motor. 3. SCALE, HOLDER, PULLEY, DRIVEN MOTOR ASSEMBLY, CR FRAME, TOP Timing Belt CP (3x6) Figure 4-20. MOTOR ASSEMBLY, CR Removal Pulley in MOTOR ASSEMBLY, CR C A U T IO N Figure 4-19. Timing Belt Removal 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). 4. 5. When removing MOTOR ASSEMBLY, CR, be sure not to hit Disconnect the connector for MOTOR ASSEMBLY, CR from the connector on the main board. (Refer to Section 4.2.2.) Remove 2 screws (CP, 3x6) securing MOTOR ASSEMBLY, CR to FRAME, TOP, and then remove MOTOR ASSEMBLY, CR. 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 IR E D DISASSEMBLY AND ASSEMBLY Disassembly Procedures When removing MOTOR ASSEMBLY, CR, execute Bi-D adjustment. See “Bi-Directional Adjustment“on page 133. 94 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.8 MOTOR ASSEMBLY, ASF Removal BRACKET, MOTOR, ASF 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.) Lower LEVER, PLANETARY UNIT. 3. MOTOR ASSEMBLY, ASF LEVER, PLANETARY CBP (3x8) [Lever is held up.] [Lever is lowered.] Figure 4-22. MOTOR ASSEMBLY, ASF Removal 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. C H E C K P O IN T When installing MOTOR, ASSEMBLY, ASF5, make sure the DE unit and LEVER, PLANETARY UNIT are set as shown below: DE Unit (BRACKET, MOTOR, ASF) LEVER, PLANETARY UNIT DISASSEMBLY AND ASSEMBLY Disassembly Procedures 95 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.9 DE Unit Removal 5. 6. 1. Remove HOUSING (Refer to Section 4.2.2.) 2. 3. 4. Remove MOTOR ASSEMBLY, CR. (See Section 4.2.7.) Remove the Ink Unit. (Refer to Section 4.2.6.) Remove 2 screws (CBS, 3x6) securing SHEET, PROTECTION INK to FRAME, BOTTOM, and then remove the sheet. 7. Remove MOTOR, CR. (Refer to Section 4.2.7.) Loosen 1 (CBS, 3x6) securing the LEVER ASSEMBLY, COMBINATION GEAR to FRAME, MIDDLE. 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). TENSION SPRING, 7.37 LEVER ASSEMBLY, COMBINATION GEAR FRAME, TOP COMBINATION GEAR, 12, 22.92 SHEET, PROTECTION, INK FRAME, MIDDLE CBS (3x6) FRAME, BOTTOM TENSION BELT, PUMP, TRANSMISSION CBS (3x6) Figure 4-23. SHEET, PROTECTION, INK Removal DISASSEMBLY AND ASSEMBLY Figure 4-24. TENSION BELT, PUMP, TRANSMISSION Removal Disassembly Procedures 96 EPSON Stylus Photo 890/1280/1290 8. Revision C Remove the tension spring (0.618) attached to the LEVER, DE, LOCK and DE Unit. 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. LEVER, DE, LOCK LEVER, DE, Locking position TENSION SPRING, 0.618 LEVER, DE, LOCK Figure 4-25. TENSION SPRING, 0.618 Removal Figure 4-26. LEVER, DE, LOCK Removal C A U T IO N DISASSEMBLY AND ASSEMBLY Disassembly Procedures When removing LEVER, DE, LOCK, be careful not to break the hook in the DE Unit. 97 EPSON Stylus Photo 890/1280/1290 Revision C 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. C H E C K P O IN T SCALE, CR Check that all gears are assembled in the DE unit correctly as shown in the figure below: Combination Gear, 12, 22.4 CBP (3x8) Retaining Ring, D8.8 Felt, D3.6 Combination Gear, 17.19, 25.6 LEVER, PLANETARY UNIT Combination Gear, 14, 28 BRACKET, MOTOR, ASF 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. CBP (3x6) Figure 4-27. DE Unit Removal Combination Gear, 17.19, 25.6 11. Remove the harnesses from the harness clamp in the DE Unit. DE Unit C A U T IO N Be sure to remove the screw (CBP, 3x8) carefully so you do not damage the linear encoder (SCALE, CR). DISASSEMBLY AND ASSEMBLY Disassembly Procedures TENSION BELT, PUMP, TRANSMISSION 98 EPSON Stylus Photo 890/1280/1290 Revision C 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. 4. 5. Disconnect the ASF HP sensor cable from the connector on the sensor. Remove the head FFC from the ASF Unit. 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. ASF viewed from the right ASF viewed from the left Paper Support Sub Unit Figure 4-30. ASF Unit Removal (2) Hook in the ASF Unit CBS Sems (3x6) SHAFT, MOUNT, CR 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 4-31. ASF Unit Removal (3) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 99 EPSON Stylus Photo 890/1280/1290 C H E C K P O IN T Revision C 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. C H E C K P O IN 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 Stylus Photo 890 Combination Gear 14, 28 Gear 32 Installation Hole Protrusion Stylus Photo 1290 Combination Gear 14, 28 Gear 32 Installation Hole Protrusion Figure 4-32. Check Points in ASF Assembly DISASSEMBLY AND ASSEMBLY Disassembly Procedures 100 EPSON Stylus Photo 890/1280/1290 Revision C 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. BUSHING, FIXING, SHAFT, LEFT E-Ring HOLDER, SHEET, PAPER FEED Hook Stylus Photo 890 Stylus Photo 1290 SPUR GEAR, 32 LEVER, HOPPER, RELEASE Figure 4-34. BUSHING, FIXING, SHAFT/E-Ring Removal 6. 7. Move SHAFT, ROLLER, LD to the left. Release the fixing tab in WHEEL, DETECTOR, and then remove WHEEL, DETECTOR from SHAFT, ROLLER, LD. Figure 4-33. SPUR GEAR, 32 Removal WHEEL, DETECTOR 3. 4. 5. Fixing Tab Remove LEVER, HOPPER, RELEASE from the right end of SHAFT, ROLLER, LD. Remove HOLDER, SHEET, PAPER FEED from the right and left LD roller units. 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. SHAFT, ROLLER, LD Figure 4-35. WHEEL, DETECTOR Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 101 EPSON Stylus Photo 890/1280/1290 8. Revision C 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. Pin in FRAME, ASF;B 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.) Hopper Assembly Step 1 Step 2 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. Hopper Assembly Cutout in FRAME, ASF; B Figure 4-37. Hopper Assembly Removal (2) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 102 EPSON Stylus Photo 890/1280/1290 LEVER, HOPPER, RELEASE Revision C WHEEL DETECTOR Hopper Assembly BUSHING, FIXING, SHAFT, LEFT FRAME, ASF;B COMPRESSION SPRING, 1.961 Left LD Roller Assembly SHAFT, ROLLER, LD COMPRESSION SPRING, 1.961 LEVER, HOPPER, RELEASE Gear, 32 Right LD Roller Assembly Figure 4-38. Hopper Assembly Removal/ASF Unit Disassembly DISASSEMBLY AND ASSEMBLY Disassembly Procedures 103 EPSON Stylus Photo 890/1280/1290 C H E C K P O IN T Revision C 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 Figure 4-39. LEVER, HOPPER, RELEASE Installation Groove in the LD Roller Assembly Rail Rib in FRAME, ASF; B Figure 4-40. LD Roller Assembly Installation (1) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 104 EPSON Stylus Photo 890/1280/1290 C H E C K P O IN T Revision C 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.) Hook in the FRAME, ASF; B Figure 4-42. Hook Fixing the LD Roller Assembly Groove in the Edge Guide Hooks Compression Spring 1.961 Rib in the LD Roller Assembly Figure 4-41. LD Roller Assembly Installation (2) Figure 4-43. Holding Compression Spring with the Hooks DISASSEMBLY AND ASSEMBLY Disassembly Procedures 105 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal 1. Remove the ASF Unit. (Refer to Section 4.2.10.) 2. 3. Remove SHAFT, ROLLER, LD. (Refer to Section 4.2.10.1.) 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. 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. 4. Compression Spring, 1.961 COVER, ROLLER, LD, COVER, ROLLER, LD, LEFT Compression Spring, 1.961 LD ASSY., LEFT ROLLER ASSY., LD, LEFT ROLLER ASSY, LD, RIGHT Hooks in COVER, ROLLER, LD, LEFT LD ASSY., RIGHT Figure 4-45. ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal C A U T IO N Hooks in ROLLER ASSEMBLY, LD, LEFT Do not touch the surface of the ROLLER ASSEMBLY, LD with your bare hands. Figure 4-44. Hooks to Release DISASSEMBLY AND ASSEMBLY Disassembly Procedures 106 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.11 Carriage Unit Removal 5. 1. Remove HOUSING. (Refer to Section 4.2.1) 2. 3. Disconnect the head FFC from the printhead. (Refer to Section 4.2.4.) Remove the Tension Spring 1.494 hanging SCALE, CR to the left side of FRAME, TOP. Then remove SCALE, CR. Push PULLEY, DRIVEN down and remove it from HOLDER, PULLEY, DRIVEN. HOLDER, PULLEY, TENSION SPRING, 1.494 SCALE, CR PULLEY, DRIVEN Figure 4-47. PULLEY, DRIVEN Removal 6. 7. Remove the Timing Belt from PULLEY, DRIVEN. Remove LEVER, PG by releasing its hooks from the cutouts in the right side of FRAME, TOP. Then remove the LEVER, PG. Figure 4-46. Remove the Tension Spring 1.491& CR Encoder Slit 4. FRAME, TOP LEVER, PG 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.) Hooks Figure 4-48. LEVER, PG Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 107 EPSON Stylus Photo 890/1280/1290 8. Revision C Remove the torsion spring (63.7) hung onto FRAME, TOP and LEVER, PG. Notch in BUSHING, PARALLELISM ADJUSTMENT, BUSHING, PARALLELISM ADJUSTMENT, RIGHT FRAME, TOP CBS Tite Sems R2 Leaf Spring LEVER, PG, SUB TORSION SPRING, 63.7 Figure 4-50. BUSHING, PARALLELISM ADJUSTMENT, RIGHT Removal 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. 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. C A U T IO N A D J U S T M E N T R E Q U IR E D DISASSEMBLY AND ASSEMBLY Disassembly Procedures 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. If you replace the Carriage Unit, perform the Platen Gap Adjustment. 108 EPSON Stylus Photo 890/1280/1290 C H E C K P O IN T Revision C 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. 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. Slit for the sensor BOARD ASSEMBLY, ENCODER Carriage Unit SCALE, CR When installing SHAFT, CR, GUIDE, make sure that the oil pad is set in the correct position. Carriage Unit Figure 4-51. BOARD ASSEMBLY, ENCODER Removal C A U T IO N DISASSEMBLY AND ASSEMBLY Disassembly Procedures 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. 109 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.13 ROLLER, PF Removal 7. 1. Remove HOUSING. (Refer to Section 4.2.1) 2. 3. 4. 5. 6. Remove the Panel Unit. (Refer to Section 4.2.3.) Remove HOUSING, PANEL, LEFT. (Refer to Section 4.2.5.) Remove the ASF Unit. (Refer to Section 4.2.10.) Remove the Carriage Unit. (Refer to Section 4.2.11.) Remove the three screws (CBS, 3x6) securing GUIDE PLATE, CR Unit to FRAME, TOP. Then remove GUIDE PLATE, CR Unit. 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. PAPER GUIDE, UPPER Unit PAPER GUIDE, RIGHT Unit GUIDE PLATE, CR Unit CBS (3x6) TORSION SPRING, 117.6 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. Figure 4-52. GUIDE PLATE, CR Unit Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures 110 EPSON Stylus Photo 890/1280/1290 Revision C 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. 11. Remove PAPER GUIDE, FRONT from ROLLER, PF by releasing its two Ushaped forks fixing ROLLER, PAPER EJECT. 12. Remove CONTACT SPRING, PAPER EJECT hung to FRAME, LEFT and ROLLER, PAPER EJECT. CBS (3x6) PAPER GUIDE, ROLLER, U-Shaped Forks FRAME, PAPER EJECT Unit U-Shaped Forks CONTACT SPRING, PAPER FRAME, FRONT ROLLER, PAPER CBS (3x6) Figure 4-54. FRAME, FRONT/FRAME, PAPER EJECT Removal DISASSEMBLY AND ASSEMBLY Disassembly Procedures Figure 4-55. PAPER GUIDE, FRONT Removal 111 EPSON Stylus Photo 890/1280/1290 Revision C 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. 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. CONTACT SPRING, PF SPUR GEAR, 76 BUSHING, 6 Hook in PAPER GUIDE, REAR ROLLER, PAPER BUSHING, 12, LEFT Figure 4-56. ROLLER, PAPER EJECT Removal ROLLER, PF 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 4-58. ROLLER, PF Removal BRACKET, BOARD ASSEMBLY C A U T IO 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.) CBS (3x6) Figure 4-57. PF Encoder Removal 15. Remove CONTACT SPRING, PF hung to ROLLER, PF and FRAME, BOTTOM. (Refer to Figure 4-56.) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 112 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.13.1 SCALE, PF Installation C H E C K P O IN 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. SCALE, PF (Loop Scale) BRACKET, SCALE TAPE, D50 (Double-sided adhesive tape) TORSION SPRING, 117.6 PE Sensor Lever This section describes how to install the following parts: PAPER GUIDE, RIGHT Unit 1. Get “Mounting Plate Scale Attachment tool”. (AS Tool code: 1051765) 2. 3. Place BRACKET, SCALE on the tool with its taped side facing upward. Peel off the protection sheet from the tape on BRACKET, SCALE. BRACKET, Protection Sheet 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.) DISASSEMBLY AND ASSEMBLY Tool (Code: 1051765) Figure 4-60. Pre-operation for BRACKET, SCALE Installation Disassembly Procedures 113 EPSON Stylus Photo 890/1280/1290 4. Revision C Set SCALE, PF onto BRACKET, SCALE with its front side facing downward. 5. Remove the base sheet of TAPE, D50 and stick it to SCALE, PF. TAPE, D50 Protection Sheet Set the scale’s front side facing downward. Protection Sheet SCALE, SCALE, Tool (Code: 1051765) Figure 4-62. TAPE, D50 Installation Tool (Code: 1051765) Tool (Code: 1051765) C A U T IO N If TAPE, D50 is not aligned with the circle printed on SCALE, PF, it should not be a problem. Figure 4-61. Attaching SCALE, PF C A U T IO N 6. Do not touch the following areas: Peel off the protection sheet from TAPE, D50 on SCALE, PF. - 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. DISASSEMBLY AND ASSEMBLY Disassembly Procedures 114 EPSON Stylus Photo 890/1280/1290 7. 8. Revision C 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. Attach SCALE, PF to the gear using “Scale PF unit Assembling tool” (AS tool code: 1051767). C H E C K P O IN T Check that the protrusions on the gear (76) are sticking out from the cutouts in the scale. Protrusion Cutout Ensure SCALE, PF is free form any dirt or damage. SPUR GEAR, 76 Protrusions Tool (#1051767) SCALE, PF Figure 4-63. Loop Scale Installation DISASSEMBLY AND ASSEMBLY Disassembly Procedures 115 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.14 MOTOR ASSEMBLY, PF Removal 6. 1. Remove HOUSING. (Refer to Section 4.2.1) 2. 3. 4. 5. Remove the ASF Unit. (Refer to Section 4.2.10.) Remove the Carriage Unit. (Refer to Section 4.2.11.) Remove ROLLER, PF. (Refer to Section 4.2.13.) Remove 1 plane washer (4.1x0.5x4.5) fixing the combination gear (13.5, 30) to FRAME, LEFT, and then remove the combination gear. COMBINATION GEAR, 13.5, 30 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. MOTOR ASSEMBLY, PF SCREW, MOUNTING, PF PLANE WASHER (4.1x0.5x6.5) CBS (3x6), PLANE WASHER Figure 4-65. PF Motor Removal Figure 4-64. Removing COMBINATION GEAR and PLANE WASHER C A U T IO N A D J U S T M E N T R E Q U IR E D DISASSEMBLY AND ASSEMBLY Disassembly Procedures Be careful not to damage the teeth of COMBINATION GEAR, 13.5, 30. If you replace MOTOR ASSEMBLY, PF, adjust backlash for the PF pinion and SPUR GEAR, 76. (See Chapter 5.) 116 EPSON Stylus Photo 890/1280/1290 Revision C 4.2.15 PE Sensor Unit Removal 1. Remove HOUSING. (Refer to Section 4.2.1) 2. 3. 4. 5. 6. Remove the ASF Unit. (Refer to Section 4.2.10.) Remove the DE Unit. (Refer to Section 4.2.9.) Remove PAPER GUIDE, RIGHT Unit. (Refer to Section 4.2.13.) Remove the timing belt. (Refer to Section 4.2.11.) Release 2 hooks securing the PE sensor unit to FRAME, TOP, lift up the PE sensor unit, and then remove it to the rear. Hooks PE Sensor Unit Figure 4-66. PE Sensor Unit Removal C H E C K P O IN 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.) DISASSEMBLY AND ASSEMBLY Disassembly Procedures 117 5 CHAPTER ADJUSTMENT EPSON Stylus Photo 890/1280/1290 Revision C 5.1 Overview The table below lists the type of repair and required adjustments in the order to be made. This chapter describes adjustments required if the printer is disassembled and assembled for repair or service. Table 5-2. Type of Repair and Required Adjustment No. 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. Table 5-1. Adjustment Item No. Item Parallelism Adjustment (without the adjustment program) • When you replace or remove the carriage guide shaft. • When you replace or remove the parallelism adjustment bushing. 2 Backlash Adjsutment (without the adjustment program) • When you replace the PF motor. • When you remove the Gear 76. Ink Charge • When you replace or remove the printhead. 4 6 Head ID Input Bi-Directional Adjustment • When you replace the printhead. • When you replace the main board. NOTE: New head ID is not written until EEPROM is reset. • • • • When you replace the printhead. When you replace the main board. When you replace the CR motor assembly. When you remove the carriage unit. 7 Input USB ID • When you replace the main board. 8 Protection Counter Clear • When you replace the waste ink pad. ADJUSTMENT Overview Required adjustment Printhead removal 1. Head Cleaning 2. Bi-Directional Adjustment Printhead replacement 1. 2. 3. 4. Head ID Input Ink Charge Nozzle Check Bi-Directional Adjustment 3 Main board replacement 1. 2. 3. 4. Head ID Input Bi-Directional Adjustment. Input USB ID Protection Counter Clear 4 Carriage unit replacement or removal 1. Parallelism Adjustment 2. Bi-Directional Adjustment 5 CR Motor replacement 1. Bi-Directional Adjustment 6 Printer mechanism replacement 1. Head ID Input 2. Ink Charge 3. Bi-Directional Adjustment 7 Waste Ink Pad replacement 1. Protection Counter Clear 1. Backlash Adjsutment 8 Replacement or removal of the following parts. 1) PF motor 2) Gear 76 3) PF roller assembly 1 2 When to perform 1 3 Type of repair 119 EPSON Stylus Photo 890/1280/1290 Revision C 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 • • • • • • • • A 3.5- inch HD floppy disk (Choose either Win.95 or 98) C A U T IO N Ink Charge Head ID Input/Check Head Cleaning Refurbishment for DOA USB ID Input/Check Bi-Directional Adjustment Protection Counter Clear Nozzle Check 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. ADJUSTMENT Overview 120 EPSON Stylus Photo 890/1280/1290 Revision C 5.2 Adjustment 5.2.1.1 Using PG Adjustment Tool 1. This section explains the procedure for each adjustment. Install the right and left Parallel Adjustment Bushings to the printer mechanism by aligning their marks with the notches on the frames. 5.2.1 Parallelism Adjustment Mark 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. To the front (= gap is widen) Notch on the frame (+) 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. C A U T IO N To the rear (= gap is narrowed) Frame (0) Right Parallelism Adjustment Bushing 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. ADJUSTMENT PG Lever 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. Adjustment 121 EPSON Stylus Photo 890/1280/1290 4. Revision C Move the Carriage to the center of the printer mechanism. Put the PG adjustment tool right on the rightmost rib of Paper Guide Front. C H E C K P O IN T C A U T IO N To move the Carriage Unit, pull the timing belt with your hand. Be careful not to damage the CR scale (linear encoder). 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. 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). Set PG Adjustment tool right on the rightmost rib of Paper Guide Front. C Part B Part (narrow side) A Part B Part (wide side) Table 5-4. Carriage on PG Adjustment Tool 7. Front Paper Guide 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. C H E C K P O IN T Figure 5-2. Setting PG Adjustment Tool ADJUSTMENT Adjustment 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. 122 EPSON Stylus Photo 890/1280/1290 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. C H E C K P O IN T 9. Revision C 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. 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. ADJUSTMENT Adjustment 123 EPSON Stylus Photo 890/1280/1290 Revision C 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.) Front Paper Guide Cutout Cutout Thickness Gauge Gauge Aligning Position To move the carriage unit, pull the timing belt with your hand. Be careful not to damage the CR scale (linear encoder). 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 (+). Right Edge (Home Position Side) Left Edge Carriage Unit C H E C K P O IN T 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. • Set the gauge on the horizontal top of the ribs. • Bring the rib tops to the middle of the gauge. PF Roller C H E C K P O IN T Front Paper Guide 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. Figure 5-3. Placing the Thickness Gauge ADJUSTMENT Adjustment 124 EPSON Stylus Photo 890/1280/1290 Revision C 5.2.2 Backlash Adjsutment Before you begin, make sure the following parts are removed: COMBINATION GEAR, 13.5, 30 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: TRAY, ABSORBER ASSEMBLY HOUSING, PANEL, LEFT HOUSING, REINFORCING, LEFT PF motor assembly Gear 76 See the following figure for locations. PF roller unit C A U T IO 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. COMBINATIO N GEAR, 13.5,30 HOUSING, REINFORCING, HOUSING, PANEL, LEFT Figure 5-4. Parts to Remove C A U T IO N ADJUSTMENT Adjustment Be careful not to damage the PF Loop scale when removing COMBINATION GEAR, 13.5, 30. 125 EPSON Stylus Photo 890/1280/1290 Revision C 1. Loosen the screw (CBS, 3x6) securing the PF motor assembly to the left frame by rotating it half. 6. Press the gear 76 by the point 2 and release it again to ensure it returns to its original position. 2. Holding the PF motor assembly, get the pinion mesh the gear 76. 7. 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. Using a microscope, check for a correct backlash. Backlash at its minimum point should be 0 - 0.1 mm. If larger, repeat the adjustment. GEAR, 76 1 2 0 - 0.1 mm 2 3 3 GEAR, 76 PINION PINION Figure 5-5. Checking for Gear Engagement C A U T IO N Figure 5-6. Checking for the Backlash When pressing the gear 76 together with the PF scale, be careful not to damage or stain the scale. 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. ADJUSTMENT Adjustment 126 EPSON Stylus Photo 890/1280/1290 Revision C 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. Table 5-5. Individual Adjustment Program No. 1 Service Items Adjustment Adjustment Items Head ID Input Figure 5-7. Independent Adjustment Program Main Menu Bi-Directional Adjustment Input USB ID 2 Maintenance Head Cleaning Sequential Repair Service Program Table 5-6. Sequential Repair Service Program No. Ink Charge Refurbishment for DOA Protection Counter Repair Items 1 Printhead Removal 1. Head Cleaning 2. Bi-Directional Adjustment 2 Printhead Replacement 1. 2. 3. 4. Head ID Input Ink Charge Nozzle Check Bi-Directional Adjustment 3 Main Board Replacement 1. 2. 3. 4. Head ID Input Bi-Directional Adjustment Input USB ID Protection Counter Clear 4 Carriage Unit Removal/Replacement 1. Bi-Directional Adjustment 5 CR Motor Replacement 1. Bi-Directional Adjustment CSIC Information 3 Appendix EEPROM Date 4 Check Pattern Printing ADJUSTMENT A4 Normal Paper Printing Adjustment Adjustment Items 127 EPSON Stylus Photo 890/1280/1290 Revision C Table 5-6. Sequential Repair Service Program No. 6 Repair Items Printer Mechanism Replacement Adjustment Items 1. 2. 3. 4. Head ID Input Ink Charge Nozzle Check Bi-Directional Adjustment 7 Waste Ink Pads Replacement 1. Protection Counter 8 Clogged Nozzle Recovery 1. Nozzle Check 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. C A U T IO N While you are running the service program on Windows 95, you 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: 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. Use Windows 95 or higher. 5.2.3.2 How to Uninstall the Program Use LPT 1 only as the printer port. (Use a USB interface cable only when Access Control Panel> Add/Remove Programs and uninstall the program. performing Input USB ID .) 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: ADJUSTMENT Adjustment 128 EPSON Stylus Photo 890/1280/1290 Model Name (Stylus PHOTO 890/1280/1290) Revision C 3. Select Port. 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 5-11. Port Selection 4. Select Destination. Figure 5-9. Initial Window 2. Select Model Name: Figure 5-12. Destination Selection Figure 5-10. Model Selection ADJUSTMENT Adjustment 129 EPSON Stylus Photo 890/1280/1290 5. Revision C 5.3 Individual Adjustment Program Select Program Type. 5.3.1 Head ID This adjustment needs to be executed when you replace any of the following parts: Printhead Standard Main Board Printer mechanism C A U T IO N make this adjustment prior to any other adjustment items. This adjustment is very important to keep good printer Figure 5-13. Program Type Selection 6. If you replace the printhead, Main Board, or printer mechanism, 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. After choosing four items on the window, click OK. If you want to exit the program, click Quit. 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. ADJUSTMENT 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. Individual Adjustment Program 130 EPSON Stylus Photo 890/1280/1290 3. Revision C The Head ID Adjustment window appears. Select Input Head ID and click OK. 5. The following message appears on the window and the Head ID Input is completed. Figure 5-14. Head ID Adjustment Window Figure 5-16. Head ID Input Completed 4. The Input Head ID window appears. Enter 13 digit Head ID and click OK. 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 Figure 5-15. Head ID Input ADJUSTMENT Individual Adjustment Program 131 EPSON Stylus Photo 890/1280/1290 Revision C 5.3.1.2 Head ID Check 3. The Head ID Adjustment window appears. Select Check Head ID and click OK. 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. W23U3 WYXYX OKA Figure 5-19. Head ID Adjustment Window 4. The current Head ID is displayed. 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. Figure 5-20. Current Head ID Check ADJUSTMENT Individual Adjustment Program 132 EPSON Stylus Photo 890/1280/1290 5. Revision C To exit or continue the program, refer to Figure 5-17.“Exit Window” on page -131. C A U T IO N 3. The Bi-Directional Adjustment window appears. Select Print Bi-D Adjustment Pattern and click OK. The Head ID Input to EEPROM is not effective until the printer is next turned on. 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. Figure 5-21. Bi-Directional Adjustment Window When you: Replace the printer mechanism. 4. Replace the main board. Click OK, and then the Bi-D Adjustment Patterns will automatically be printed. 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. Figure 5-22. Bi-Directional Adjustment Pattern Printing ADJUSTMENT Individual Adjustment Program 133 EPSON Stylus Photo 890/1280/1290 5. Revision C The Bi-Directional Adjustment patterns are printed as follows. 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. Set the track bar to the right end. 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) Figure 5-24. Second Bi-Directional Adjustment Pattern Printing 7. The second Bi-D Adjustment Patterns are printed as follows. The second print start position After First Pattern Printing After Second Pattern Printing Figure 5-25. Second Bi-Directional Adjustment Pattern Sample ADJUSTMENT Individual Adjustment Program 134 EPSON Stylus Photo 890/1280/1290 8. Revision C The following message appears on the window and the Bi-Directional Adjustment Pattern Printing is completed. 3. Figure 5-27. Bi-Directional Adjustment Window 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. The Bi-Directional Adjustment window appears. Select Input Bi-D Adjustment Value and click OK. 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. 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. Figure 5-28. Input Bi-D Adjustment Value Window ADJUSTMENT Individual Adjustment Program 135 EPSON Stylus Photo 890/1280/1290 5. Revision C When you adjust the setting values, make sure that the Bi-D gap becomes less than 60 µ m. Bi-d MS Color data = -14 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. Bi-D Gap Less than 60 µm 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 5-31. Bi-Directional Adjustment Window 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. ADJUSTMENT Individual Adjustment Program 136 EPSON Stylus Photo 890/1280/1290 4. Revision C 5.3.3 Input/Check USB ID Click OK and the present adjustment values are displayed. 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 IO N 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. C A U T IO 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. 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. ADJUSTMENT Individual Adjustment Program 137 EPSON Stylus Photo 890/1280/1290 Revision C 5.3.3.1 Input USB ID 1. 5. 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 . 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 5-33. Input USB ID Selection 4. Input a10-digit serial number and click OK. The new USB ID number is displayed. Figure 5-35. Check USB ID Selection Figure 5-34. USB ID Input Window ADJUSTMENT Individual Adjustment Program 138 EPSON Stylus Photo 890/1280/1290 4. Revision C 5.3.4 Maintenance A present USB ID is displayed. 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. C A U T IO N [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 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. C A U T IO N Head Cleaning function uses the following amount of ink at a time: 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. 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. Figure 5-37. Head Cleaning Window ADJUSTMENT Individual Adjustment Program 139 EPSON Stylus Photo 890/1280/1290 6. Revision C When the cleaning is completed, the following message appears on the window. 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. C A U T IO 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 7. Figure 5-38. Head Cleaning Completed 1. To exit or continue the program, click Quit on the lower left. Refer to Figure 5-17.“Exit Window” on page -131. 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 ADJUSTMENT Individual Adjustment Program 140 EPSON Stylus Photo 890/1280/1290 5. Revision C The following message appears. After replacing both black and color I/Cs with new ones, click Yes. The printer begins the ink charge operation. 5.3.6 Refurbishment for DOA This function is used when the cavity of the printhead and cap assembly needs to be cleaned. C A U T IO N Yes After carrying out this function, replace the Waste Drain Ink No 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. ADJUSTMENT 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. 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. Individual Adjustment Program 141 EPSON Stylus Photo 890/1280/1290 4. Revision C 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. ADJUSTMENT Individual Adjustment Program 142 EPSON Stylus Photo 890/1280/1290 Revision C 5.3.7 Protection Counter 4. The Check the Protection Counter window appears. Click OK, and the current protection counter value will be displayed. 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. C A U T IO 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. Figure 5-45. Protection Counter Value Displayed 5.3.7.1 Check the Present Counter Value 1. 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.) 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) 5.3.7.2 Clear the Protection Counter Value 2. Select Maintenance Items. 1. 3. The Protection Counter Maintenance window appears. Select Check the Present Counter Value and click OK. 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. Figure 5-44. Protection Counter Maintenance Window ADJUSTMENT Individual Adjustment Program 143 EPSON Stylus Photo 890/1280/1290 3. Revision C The Protection Counter Maintenance window appears. Select Clear the Protection Counter Value and click OK. 5. The following message is displayed. After replacing the Waste Ink Pad with a new one, click (Y). Yes No Figure 5-48. Waste Ink Pad Replacement Massage 6. The protection counter is cleared and the following message is displayed. Figure 5-46. Protection Counter Maintenance Window 4. The Clear the Protection Counter window appears and click OK,. Figure 5-49. Counter Value Display Window Figure 5-47. Clear the Protection Counter 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 IO N ADJUSTMENT Whenever you reset the protection counter, make sure to replace Individual Adjustment Program the Waste Ink Pad with a new one. (Refer to TRAY, ABSORBER ASSEMBLY Removal). 144 EPSON Stylus Photo 890/1280/1290 Revision C 5.3.8 Appendix Items 4. 5.3.8.1 CSIC Information 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. 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 5-51. CSIC Information 5. The selected information is displayed. Figure 5-50. CSIC Information Selection Figure 5-52. Black I/C Unique Information ADJUSTMENT 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.) Individual Adjustment Program 145 EPSON Stylus Photo 890/1280/1290 Revision C 5.3.8.2 EEPROM Data Check 5. 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. The information of the designated address is displayed as follows. Figure 5-55. EEPROM Data Displayed Figure 5-53. EEPROM Data Selection 4. Input the reading start address and end address. Click OK. 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. Figure 5-54. Reading Start/End Address Input ADJUSTMENT Individual Adjustment Program 146 EPSON Stylus Photo 890/1280/1290 4. Revision C The the EEPROM Data window appears. Select Change the EEPROM Data. 6. When the EEPROM data is changed, a new address and data is displayed at the lower left. Figure 5-56. EEPROM Data Selection Figure 5-58. EEPROM Data Change Completed 5. Input the EEPROM address and data needs to be changed and click OK. 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. Figure 5-57. EEPROM Data Change Window ADJUSTMENT Individual Adjustment Program 147 EPSON Stylus Photo 890/1280/1290 4. Revision C The Check Pattern Printing window appears. Select A4 Normal Paper Printing. 6. Figure 5-61. A4 Normal Paper Printing Completed Figure 5-59. A4 Normal Printing Selection 5. When the printing is completed, the following message is displayed on the window. Click OK. All of the 8 items on the window are printed on A4 Normal sheets. 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.) Figure 5-60. A4 Normal Paper Printing ADJUSTMENT Individual Adjustment Program 148 EPSON Stylus Photo 890/1280/1290 Revision C 5.4 Sequential Repair Adjustment Program 5.4.1.1 How to start the program 1. 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. 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) 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 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 ADJUSTMENT Sequential Repair Adjustment Program 149 EPSON Stylus Photo 890/1280/1290 Revision C 5.4.1.2 Printhead Removal 4. When the Head Cleaning is completed, the following message is displayed on the window. 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 5-65. 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 5-64. Head Cleaning Window 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“BiDirectional Adjustment” on page -133. ADJUSTMENT Sequential Repair Adjustment Program 150 EPSON Stylus Photo 890/1280/1290 6. Revision C When the Bi-D pattern printing is finished, the following message is displayed. Click Complete. 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 5-67. Bi-D Pattern Printing Completed 7. The following message appears. All of the Printhead Removal operations are completed. 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 5-68. Printhead Removal Operations Completed 8. To return to the main menu, click the Menu button at the lower left. Figure 5-70. Ink Charge Window ADJUSTMENT Sequential Repair Adjustment Program 151 EPSON Stylus Photo 890/1280/1290 Revision C 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 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. 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. 5.4.1.9 Clogged Nozzle Recovery 3. Execute Bi-D Adjustment. Refer to 5.3.2“Bi-Directional Adjustment” on page -133. 1. Select Clogged Nozzle Recovery from the main menu. 4. Execute USB ID Input. Refer to 5.3.3“Input/Check USB ID” on page -137. 2. 5. Execute Protection Counter Clear. Refer to 5.3.7“Protection Counter” on page -143. 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. 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. ADJUSTMENT 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. Sequential Repair Adjustment Program 152 EPSON Stylus Photo 890/1280/1290 5. Revision C The second or third test printing patterns are printed as follows. The Second Nozzle Check Pattern starts from here. The Third Nozzle Check Pattern starts from here. 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. ADJUSTMENT Sequential Repair Adjustment Program 153 6 CHAPTER MAINTENANCE EPSON Stylus Photo 890/1280/1290 Revision D 6.1.2 Service Maintenance 6.1 Overview This section describes points and procedures for maintaining the printer in its optimum condition. 6.1.2.1 Head Cleaning 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. C A U T IO N If print irregularity (missing dot, white line, etc.) has occurred or the printer indicates “Maintenance Error”, take the following actions to clear the error. Never use chemical solvents, such as thinner, to clean the printer. 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.) 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.) 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. 6.1.2.2 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. MAINTENANCE Overview 155 EPSON Stylus Photo 890/1280/1290 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. Revision D 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. Never use oil and grease other than those specified in this C A U T IO N 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. Table 6-1. Specified Lubricants MAINTENANCE Overview Type Name EPSON Code Supplier Grease G-26 1080614 EPSON Grease G-56 1059150 EPSON Oil O-12 1038991 EPSON 156 EPSON Stylus Photo 890/1280/1290 Revision D Table 6-2. Lubrication Point (continued) Table 6-2. Lubrication Point Lubrication Point Lubricant Type & Amount 1 COMBINATION 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 2 BUSHING, 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 3 HOLDER, PULLEY, DRIVEN G-26 φ 1 x 3mm (for each of the 4 points) Page 159 4 BUSHING, 12, LEFT • Using a brush, apply the grease to the inside surface of the bushing. G-26 A 3-mm wide bead Page 160 5 BUSHING, 6 • Using a brush, apply the grease to the inside surface of the bushing. G-26 A 1-mm wide bead Page 160 6 PULLEY, DRIVEN • Apply the grease to the flat surface. G-26 φ 1 x 1mm (2 points) Page 161 7 SHAFT, PULLEY, DRIVEN G-26 φ 1 x 1mm Page 161 8 COMBINATION GEAR, 12, 22.4 • Using a dispenser, apply the oil to the entire inside circumference of the gear. O-12 Page 161 COMBINATION GEAR, 14, 28 • Using a flux dispenser, apply the oil to the entire inside circumference of the gear. O-12 Shaft C • Using a brush, apply the oil to the whole surface of Shaft C with G-26. G-26 9 10 MAINTENANCE Lubrication Point Refer to: Lubricant Type & Amount Refer to: 11 FELT, D3.6 for COMBINATION GEAR O-12 12, 22.4 (set the felt to Shaft B) Soak in. • 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. Page 161 12 FELT, D3.6 for COMBINATION GEAR O-12 14, 28 (set the felt to Shaft A) Soak in. • 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. 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 Page 162 Page 161 Page 161 Overview φ 1 x 2mm 157 EPSON Stylus Photo 890/1280/1290 Revision D Table 6-2. Lubrication Point (continued) Lubrication Point 15 16 171 Lubricant Type & Amount Table 6-2. Lubrication Point (continued) Refer to: 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 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 SHAFT, CR (EPSON Stylus Photo 890 only) G-56 Page 163 18 SHAFT, CR (EPSON Stylus Photo • Apply O-12 on the Oil Pad (1049380) O-12 • 0.70-0.74cc or 0.630.67g COMBINATION GEAR 13.5, 30 shaft in FRAME, LEFT G-26 φ 1 x 5mm 1280/1290) MAINTENANCE Lubricant Type & Amount Refer to: 19 LD Roller Assy hole in the FRAME, ASF; B • 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 A R N IN G • 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. 172 Lubrication Point 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) Page 163 Overview 158 EPSON Stylus Photo 890/1280/1290 Revision D HOLDER, PULLEY, DRIVEN G-26 COMBINATION GEAR, 12,22.9 G-26 G-26 G-26 G-26 Figure 6-3. Holder, Pulley, Driven Figure 6-1. Lever Assy, Combination Gear, 12,22.92 G-26 Figure 6-2. Bushing, 12, Right MAINTENANCE Overview 159 EPSON Stylus Photo 890/1280/1290 Revision D G-26 LEVER, CR, LOCK E RING, 4, F/UC BUSHING, 6 U-TYPE SPRING, 5.2X0.13X10,S/Na BUSHING, 12, LEFT ROLLER, ASSY, EJECT G-26 PLAIN WASHER, 5.1X0.7X11,S/Na SHAFT, CR, GUIDE BUSHING, 6 G-26 BUSHING, 12, LEFT Figure 6-5. Bushing, 6 Figure 6-4. Bushing, 12, Left MAINTENANCE G-26 Overview 160 EPSON Stylus Photo 890/1280/1290 Revision D SHAFT, PULLEY, DRIVEN FELT, D3.6 G-26 COMBINATION GEAR, 12, 22.4 COMBINATION GEAR, 17.19, 25.6 O-12 FELT, D3.6 O-12 O-12 O-12 Screw hole for Motor Assy, ASF *No oil G-26 COMBINATION GEAR, 14, 28 G-26 PULLEY, DRIVEN Figure 6-6. Shaft, Pulley, Driven SHAFT, A SHAFT, C MOUNTING PLATE, MOTOR, ASF SHAFT, B LEVER PLANET UNIT FELT, D3.6 SET RING, D8.8 must fit in Figure 6-7. Combination Gear, 12,22.4 & 14.28 MAINTENANCE Overview 161 EPSON Stylus Photo 890/1280/1290 Revision D ROLLE PAPER GUIDE, SHAFT, CR G-26 G-26 Figure 6-10. Roller, PF G-26 Figure 6-8. Groove on Roller, PF CONTACT SPRING, PAPER EJECT G-26 G-26 G-26 G-26 Figure 6-11. Paper Guide, Front (6 spots) Figure 6-9. Roller, Eject & Ground Spring, Eject MAINTENANCE Overview 162 EPSON Stylus Photo 890/1280/1290 Revision D G-56 ] G-26 Approx. 3 cm After applying G-56 on the COMBINATION GEAR, 13.5,30 SHAFT Approx. 3 cm Move the Carriage to left to right. shaft, rotate the shaft half way. Figure 6-13. Combination Gear, 13.5,30 G-26 Rotating the Shaft, to distribute the grease evenly on the shaft. Figure 6-12. Shaft, CR (EPSON Stylus Photo 1280/12909 Carriage Unit) MAINTENANCE Overview Figure 6-14. Frame, ASF; B 163 EPSON Stylus Photo 890/1280/1290 Revision D Hook for the CR motor linear scale Screw G-26 G-26 HOPPER ASSY G-26 FRAME, ASF; B Figure 6-16. Guide Plate, CR Figure 6-15. Hopper Assy (right and left) MAINTENANCE Overview 164 7 CHAPTER APPENDIX EPSON Stylus PHOTO 890/1280/1290 Revision C 7.1.2 Connector Pin Assignment 7.1 Connector Summary 7.1.1 Connector Alignment Table 7-1. Connector Assignment This section provides information on connectors connecting main components of the printer. Parallel I/F USB I/F Printer Mechanism 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 Print Head (CSIC,CR Encoder) appn01 Figure 7-1. Cable Connection APPENDIX Connector Summary 166 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-2. Connector Pin Assignment - CN5 Pin Signal Name I/O 1 PE I 2 GND 3 PEV Table 7-4. Connector Pin Assignment - CN8 Function Pin Signal Name I/O PE signal 1 COM - Head drive pulse − GND 2 GND - Ground − +5V 3 COM - Head drive pulse 4 GND - Ground 5 VHV - +42V power supply for nozzle selector 6 GND - Ground 7 SEL I Command Selection 8 GND - Ground 9 VDD - +5V 10 LAT O Head data latch pulse output 11 GND - Ground 12 NCHG O Head NCHG 13 THM I Thermistor detect signal 14 SI1 O Head data 15 SI2 O Head data 16 SI3 O Head data 17 SP O SP signal 18 NC - - 19 GND - Ground 20 ENA I CR encoder output A 21 VDD - +5V 22 ENB I CR encoder output B 23 GNB - Ground Table 7-3. Connector Pin Assignment - CN6 Pin Signal Name I/O 1 ASF I ASF HP detection 2 GND - GND 3 ASFV - +5V APPENDIX Function Function Connector Summary 167 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-6. Connector Pin Assignment - CN11 Table 7-5. Connector Pin Assignment - CN9 Pin Signal Name I/O Function 1 SI6 O Head data 2 SI5 O Head data 3 SI4 O Head data 4 GND - Ground 5 SCK O 6 GND - Head NCHG 7 CH O 8 COC 9 Pin Signal Name I/O Function 6 SW1 I Switch input 7 PSC I Power switch 8 SW0 I Switch input 9 SW2 I Switch input Table 7-7. Connector Pin Assignment - CN12 Pin Signal Name I/O Function Ground 1 GND - Ground I Clock 2 ENB I Rotary encoder Phase B output RXD O Ground 3 VCC - 10 COB I SP signal 4 ENA I Rotary encoder Phase A output 11 TXD I Head data 5 GND - Ground 12 VDD3.3 - Head data 13 GND - Head data 14 COM - Head data Pin Signal Name I/O 15 GND - Head data 1 PF-A O PF motor Phase A 16 COM - Head data 2 PF-B O PF motor Phase B 17 GND - Ground +5V Table 7-8. Connector Pin Assignment - CN13 Function Table 7-9. Connector Pin Assignment - CN14 Table 7-6. Connector Pin Assignment - CN11 Pin Signal Name I/O 1 SW2 I Switch signal input 2 LED0 O LED output 3 GND - Ground 4 VCC - +5V 5 LED3 O LED output APPENDIX Function Connector Summary Pin Signal Name I/O Function 1 CR-A O CR motor Phase A 2 CR-B O CR motor Phase B 168 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-10. Connector Pin Assignment - CN15 Function 7.1.3 EEPROM Address Map Pin Signal Name I/O 1 A O ASF/Pump Motor Phase A 2 B O ASF/Pump Motor Phase B 3 /A O ASF/Pump Motor Phase /A Address 4 /B O ASF/Pump Motor Phase /B 00H This section provides the EEPROM address map. Table 7-12. EEPROM Address Map Explanation Setting QPIT Settings Factory Settings 0FH - 5AH - Pass word Table 7-11. Connector Pin Assignment Pin Signal Name I/O 1 +42V - +42V Power 2 +42V - +42V Power 3 GND - Ground 4 ESAVE O Energy saving mode 5 PSC O Secondary power ON/OFF 6 GND - Ground 7 GND - Ground 8 +5V - +5V Power APPENDIX Function 01H 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 Connector Summary 169 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-12. EEPROM Address Map (continued) Explanation Address Setting Table 7-12. EEPROM Address Map (continued) QPIT Settings Factory Settings Address 00H 00H 2BH 19H Pitch 0: 10cpi 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 1BH Check model control bit7: Self test mode bit6: Hex dump mode 00H 00H 1CH 1FH Reserved 00H - 20H 21H QPIT Settings Factory Settings 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 - 00H 00H 78H 78H 1244 to 44x360 (by 0.0706 (1/ 360 inch)) 1EH 1EH F0H F0H 1244 to 44x360 (by 0.0706 (1/ 360 inch)) 1EH 1EH F0H F0H 00H - 00H Explanation 30H Top margin 31H Bi-D Adjustment for MultiShot (Bk) -72<=n<=+72 (by 0.00882mm(1/2880 inch) 00H Bi-D Adjustment for 6plVSD (Bk) -72<=n<=+72 (by 0.00882mm(1/2880 inch) 00H *1 32H Bottom margin 33H *1 34H Page length Setting 42 to 44x360 (by 0.0706 (1/360 inch)) 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 37H 24H Bi-D Adjustment for 6plVSD (Cl) -72<=n<=+72 (by 0.00882mm(1/2880 inch) 00H *1 38H3BH Accumulate page counter by 1 page 00H 00H 25H Bi-D Adjustment for 4plVSD (Cl) -72<=n<=+72 (by 0.00882mm(1/2880 inch) 00H *1 3CH3FH Accumulate print pass by 1 pass 00H 00H 26H 1st Dot Position Adjustment -72<=n<=+72 (by 0.00882mm(1/2880 inch) 00H *1 40H 0FH - 5AH - 27H Reserved 00H - 28H reserved for CR Phase on Home 00H - 29H reserved for Paper Sensor Adjust 00H - 2AH Roll paper flag 00H 00H 35H 36H Reserved Password 41H APPENDIX bit1: Panel Load Mode bit0: Rollpaper Mode 00H- Connector Summary 170 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-12. EEPROM Address Map (continued) Explanation Address 42H 43H Ink flag1 Ink flag2 44H Setting bit7: bit6: bit5: bit4: bit3: bit2: bit1: bit0: CSIC disable Black one-time Color one-time Initial fill required Reserved Ink cleaning seq. Black CL required Color CL required 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 QPIT Settings Table 7-12. EEPROM Address Map (continued) Factory Settings QPIT Settings Factory Settings 00H 00H 00H 00H 4EH 00H 00H 4FH 00H 00H 50H 00H 00H 00H 00H 52H 00H 00H 53H 00H 00H 54H 00H 00H 00H 00H 56H 00H 00H 57H 00H 00H 58H 00H 00H 00H 00H Address Explanation 4CH 4DH Setting Ink counter Cc 00H 10H 51H Ink counter Cm 55H 00H Ink counter Clc 00H 59H Ink counter Clm 00H 00H 5AH 00H 00H 00H 00H 5BH 00H 00H 46H 00H 00H 5CH 00H 00H 47H 00H 00H 5DH 00H 00H 48H 00H 00H 5EH 00H 00H 00H 00H 5FH 00H 00H 00H 00H 60H 00H 00H 00H 00H 00H 00H 00H 00H 45H Ink counter Cb 49H Ink counter Cy 4AH 4BH 00H 00H Ink counter Rb0 61H 62H Ink counter Rb80 63H APPENDIX Connector Summary 171 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-12. EEPROM Address Map (continued) Table 7-12. EEPROM Address Map (continued) QPIT Settings Factory Settings 00H 00H 65H 00H 00H 66H 00H 00H 00H 00H 00H 00H*2 00H 00H*2 00H 00H*2 80H 00H 00H*2 81H 00H 00H*3 82H 6DH 00H 00H*3 6EH 00H 00H*3 Explanation Address 64H Setting Ink counter Ry0 Ink counter Ry80 67H 68H CL time 69H 6AH Power off time 6BH 6CH Ink counter A0 6FH Ink counter A80 00H 00H*3 70H 00H 00H 71H Accumulated printing time 00H 00H 72H CSIC1_InkName1 00H 00H 73H CSIC2_InkName2 00H 00H 00H 00H 00H 00H 76H 00H 00H 77H 00H 00H 74H 75H Reserved Address Explanation 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 0FH - 5AH - Power unit select 00H *1 83H9FH 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 00H *1 00H *1 Password 78H Cleaning KK counter 00H 00H 79H Cleaning 1 counter 00H 00H 7AH Cleaning 1 dash counter 00H 00H A7H Microweave ID 7BH Cleaning 2 counter 00H 00H A8H Head Actuator Rank ID for Iw_B APPENDIX Setting Connector Summary +30<=n<=+70 172 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-12. EEPROM Address Map (continued) Setting Table 7-12. EEPROM Address Map (continued) QPIT Settings Factory Settings 00H *1 Address Explanation A9H Head Actuator Rank ID for Iw_C 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 +30<=n<=+70 Address Explanation Setting D8H D9H DAH Custom EEPROM sub number DBH DCH Panel mask function bit7: Entry self-test bit6: Entry Hex-Dump bit5: Extended settings bit4: Reserved DDH QPIT Settings Factory Settings 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H - 00H - 00H - 00H 00H Reserved AEH 00H *1 DEH AFH 00H *1 DFH Factory reserved E0H Market ID E1H Reserved 00H - E2H FFH Model Name 00H - B0H B1HBFH CSIC printer name Reserved C0H For Stylus PHOTO 890: 0Fh:R4C7260 (Japan) 8Fh:R4C7260 (World) For Stylus PHOTO 1280/1290: 10h:R4C7260 (Japan) 90h:R4C7260 (World) 00H *1 00H *1 0FH - 5AH - 0: World, 1: Japan, 2: Custom *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) Password C1H C2H D3H USB ID 00H *1 D4H D7H Reserved 00H - APPENDIX 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. Connector Summary 173 EPSON Stylus PHOTO 890/1280/1290 Revision C 7.2 Circuit Board Component Layout C393MAIN CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-2. Component Layout - C393MAIN APPENDIX Circuit Board Component Layout 174 EPSON Stylus PHOTO 890/1280/1290 Revision C C393MAIN-B CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-3. Component Layout - C393MAIN-B APPENDIX Circuit Board Component Layout 175 EPSON Stylus PHOTO 890/1280/1290 Revision C C393MAIN-C CONTROL CIRCUIT BOARD Component Side Soldered Side Figure 7-4. Component Layout - C393MAIN-C APPENDIX Circuit Board Component Layout 176 EPSON Stylus PHOTO 890/1280/1290 Revision C C378PSB/PSE CIRCUIT BOARD Figure 7-6. Component Layout - C378PSE Figure 7-5. Component Layout - C378PSB APPENDIX Circuit Board Component Layout 177 EPSON Stylus PHOTO 890/1280/1290 Revision C C393PNL CIRCUIT BOARD Figure 7-7. Component Layout - C393PNL APPENDIX Circuit Board Component Layout 178 EPSON Stylus PHOTO 890/1280/1290 Revision C 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 APPENDIX Electrical Circuit Board Diagrams 179 EPSON Stylus PHOTO 890/1280/1290 Revision C 7.4 Exploded Diagrams 7.4.1 Exploded Diagrams for Stylus PHOTO 890 See the following pages for exploded diagrams for Stylus PHOTO 890. 125 122 115 102 117 101 400 754 122 182 774 183 122 500 122 751 106 124 124 116 103 133 181 132 180 774 124 122 801 766 805 136 803 124 126 752 130 125 775 135 777 105 125 125 100 125 800 753 104 802 742 PM-880C/ EPSON STYLUS PHOTO 890 NO.1 Rev.01 A 450 10275 Figure 7-8. Stylus PHOTO 890 - 1 APPENDIX Exploded Diagrams 186 EPSON Stylus PHOTO 890/1280/1290 Revision C 608 122 330 604 300 D D 591 613 524 A 122 607 501 G H 122 606 603 B 122 F 122 E C 122 594 580 112 534 122 113 532 I 122 574 122 109 122 131 119 200 122 111 122 506 122 121 122 114 121 108 587 587 505 512 122 108 587 614 587 587 PM-880C/EPSON STYLUS PHOTO 890 NO.2 Rev.01 10275 119 Figure 7-9. Stylus PHOTO 890 - 2 APPENDIX Exploded Diagrams 187 EPSON Stylus PHOTO 890/1280/1290 Revision C E 759 706 F 587 758 757 558 501 756 557 762 704 761 760 551 551 548 J 762 609 587 548 605 551 545x5 761 551 548 612 644 748 564 604 700 705 513 550 549 550 549 548 550 J 551 548 550 550 573 549 546 550 587 568 569 551 548 550 549 550 B 553 550 549 550 549 550 506 552 547 550 H 575 577 567 575 554 565 560 555 612 587 588 588 566 589 571 587 572 PM-880C/EPSON STYLUS PHOTO 890 507 514 748 No.3 570 Rev.01 10275 Figure 7-10. Stylus PHOTO 890 - 3 APPENDIX Exploded Diagrams 188 EPSON Stylus PHOTO 890/1280/1290 Revision C 610 587 526 525 587 521 518 510 517 528 527 559 587 610 528 (501) 537 522 K 610 639 590 536 515 516 530 611 619 511 587 619 641 535 502 G 531 645 587 533 538 520 626 504 622 587 530 579 531 544 544 542 544 542 587 620 582 623 542 586 628 592 627 529 628 I 540 544 542 544 542 544 542 544 541 556 544 543 599 542 544 542 544 539 542 544 542 544 542 544 542 544 542 587 625 585 593 531 578 612 765 119 531 616 618 621 587 PM-880C/ EPSON STYLUS PHOTO 890 587 624 508 587 519 509 637 587 No.4 Rev.01 10275 Figure 7-11. Stylus PHOTO 890 - 4 APPENDIX Exploded Diagrams 189 EPSON Stylus PHOTO 890/1280/1290 Revision C 780 Without 747,748 711 709 712 713 714 708 764 581 C 747 703 763 707 740 710 748 755 782 737 736 739 721 728 738 726 723 720 736 727 718 735 K 739 737 729 730 746 745 716 745 715 717 718 724 721 731 733 781 746 719 735 734 720 732 723 722 724 725 PM-880C/ EPSON STYLUS PHOTO 890 No.5 Rev.01 10275 Figure 7-12. Stylus PHOTO 890 - 5 APPENDIX Exploded Diagrams 190 EPSON Stylus PHOTO 890/1280/1290 Revision C 7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290 See the following pages for exploded diagrams for Stylus PHOTO 1280/1290. 122 125 115 125 102 117 125 182 101 110 183 for JPN 122 774 754 500 126 126 124 124 751 106 180 116 181 122 124 122 774 103 400 for EAI,EUL(120V),ETT 775 743 124 126 136 783 133 126 766 130 752 123 For EAI(220V),EUR, S.E.ASIA, EAL,EKL 400 401 125 132 105 400 125 100 125 753 125 776 104 742 123 450 PM-3500C / EPSON STYLUS PHOTO 1290 No.1 Rev.01 10270 Figure 7-13. Stylus PHOTO 1280/1290 - 1 APPENDIX Exploded Diagrams 191 EPSON Stylus PHOTO 890/1280/1290 Revision C 591 122 604 608 587 613 524 607 122 501 122 122 606 603 330 300 580 587 594 122 122 534 574 112 122 113 532 122 119 122 131 122 114 119 122 109 506 200 111 122 122 108 122 121 587 122 121 512 505 587 108 108 122 587 614 587 587 587 PM-3500C / EPSON STYLUS PHOTO 1290 No.2 Rev.01 10270 119 Figure 7-14. Stylus PHOTO 1280/1290 - 2 APPENDIX Exploded Diagrams 192 EPSON Stylus PHOTO 890/1280/1290 Revision C 759 704 (501) 587 706 557 558 583 573 584 762 598 760 609 551 761 548 587 545 X5 762 551 548 551 548 550 549 550 605 551 548 551 548 705 550 761 549 612 550 549 550 550 629 769 550 513 568 549 551 548 552 549 550 569 604 560 553 550 549 550 550 (506) 700 551 548 551 548 550 575 567 577 575 548 550 549 550 550 587 564 551 549 554 550 549 550 550 547 555 565 507 587 562 514 629 612 587 561 566 589 571 588 630 587 563 572 PM-3500C / EPSON STYLUS PHOTO 1290 No.3 Rev.01 10270 570 Figure 7-15. Stylus PHOTO 1280/1290 - 3 APPENDIX Exploded Diagrams 193 EPSON Stylus PHOTO 890/1280/1290 Revision C 587 610 (501) 588 587 559 510 526 525 521 518 528 J 590 636 522 523 517 528 527 610 537 587 634 536 502 633 535 635 546 587 611 587 638 546 549 ??? 511 515 619 628 530 619 628 504 529 516 632 587 538 544 542 641 587 544 542 542 544 541 542 544 542 544 543 544 542 544 542 544 542 544 544 542 544 542 620 533 587 530 556 585 593 531 544 540 542 612 543 542 542 544 587 582 587 541 544 542 544 542 544 542 623 531 544 626 622 503 544 520 592 627 579 586 539 542 544 544 542 599 618 119 624 531 612 765 625 578 587 519 616 542 544 542 621 587 544 PM-3500C / EPSON STYLUS PHOTO 1290 No.4 508 Rev.01 587 587 509 637 10270 Figure 7-16. Stylus PHOTO 1280/1290 - 4 APPENDIX Exploded Diagrams 194 EPSON Stylus PHOTO 890/1280/1290 Revision C 780 711 709 712 714 713 708 764 749 747 703 750 763 758 740 707 710 736 748 739 781 703 701 737 738 721 728 703 741 736 726 727 703 739 735 701 720 730 746 723 718 729 745 717 716 701 737 715 745 721 718 724 731 782 746 733 735 719 734 720 732 723 722 724 725 PM-3500C / EPSON STYLUS PHOTO 1290 No.5 Rev.01 10270 Figure 7-17. Stylus PHOTO 1280/1290 - 5 APPENDIX Exploded Diagrams 195 EPSON Stylus PHOTO 890/1280/1290 Revision C 7.5 Parts List Table 7-13. Stylus PHOTO 890 Parts List Code 7.5.1 Parts List for Stylus PHOTO 890 Table 7-13. Stylus PHOTO 890 Parts List Code Parts Name Parts Name 126 C.B.S. SCREW 130 "BUTTON,CSIC" 131 "COVER,CABLE;B" 100 HOUSING;B 132 "LOCK,STACKER" 101 COVER ASSY. 133 "COMPRESSION SPRING,2.94" 102 PAPER SUPPORT;B 135 "BUTTON,PS;B" 103 STACKER ASSY.;C 136 OPTICAL TUBE 104 PANEL ASSY. 180 "LABEL,CAUTION;B" 105 "SHIELD PLATE,PANEL" 181 "LABEL,MODEL NAME;B" 106 "HOUSING,PANEL,LEFT;B" 184 "LABEL,ACCESSORY" 108 GROUNDING PLATE 200 "BOARD ASSY., MAIN" 109 "COVER,SHIELD PLATE,M/B,RIGHT" 300 "BOARD ASSY., POWER SUPPLY" 111 "COVER,CABLE" 330 HARNESS 112 "COVER,INLET,UPPER;B" 400 POWER CABLE ASSY. 113 "COVER,INLET,LOWER;B" 450 "BOARD ASSY.,PANEL" 114 "SHIELD PLATE,M/B" 500 PRINTER MECHANISM(ASP)M4T12-100 115 LOGO PLATE 10X40;C 501 "FRAME ASSY,LEFT;B" 116 "HOUSING,SUPPORT,RIGHT;B" 502 "MOTOR ASSY.,PF" 117 "HOUSING,SUPPORT,LEFT;B" 504 "COMBINATION GEAR,12,22.4" 119 FOOT 505 "FRAME,RIGHT,FRONT" 121 C.P.SCREW 506 "FRAME,UPPER" 122 C.B.S. SCREW 507 "MOTOR ASSY.,CR" 123 "C.B.(O) SCREW,4X5,F/ZG" 508 "PUMP,ASSY." 124 C.B.S. SCREW 509 CAP ASSY. 125 "C.B.P-TITE SCREW,3X8,F/ZN" 510 "FRAME,LOWER" APPENDIX Parts List 196 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-13. Stylus PHOTO 890 Parts List Code Table 7-13. Stylus PHOTO 890 Parts List Parts Name Code Parts Name 511 "SHEET,PROTECT,INK" 537 "GROUNDING SPRING,PF" 512 "FRAME,FRONT" 538 "FRAME,PAPER EJECT" 513 "BUSHING,PARALLELISM ADJUST,LEFT" 539 "HOLDER,STAR WHEEL,RIGHT;B" 514 "BUSHING,PARALLELISM ADJUST,RIGHT" 540 "HOLDER,STAR WHEEL,LEFT;B" 515 "PAPER GUIDE,REAR" 541 "HOLDER,STARWHEEL,FRONT" 516 "ROLLER,PF" 542 "STARWHEEL ASSY.,8" 517 "COMPRESSION SPRING,5.85" 543 "STARHWEEL,8;B" 518 "BUSHING,12,LEFT" 544 "RODSPRING,STARWHEEL;B" 519 "TENSION BELT,PUMP TRANSMISSION" 545 "PAPER GUIDE,UPPER" 520 "SPUR GEAR,15.2" 546 "PAPER GUIDE,LEFT" 521 "SPACER,C-RING" 547 "PAPER GUIDE,RIGHT" 522 "SCALLOP SPRING PIN-AW,2X16,F/B" 548 "SHAFT,PAPER GUIDE,UPPER" 524 "SPUR GEAR,76" 549 "SHAFT,ROLLER,DRIVEN" 525 "SPACER,FASTEN,ROLLER,PF" 550 "ROLLER,DRIVEN" 526 "SPACER,FASTEN,ROLLER,PF;B" 551 "TORSION SPRING,117.6" 527 C-RING 552 "CIRCUIT ASSY,PE" 528 "PLANE WASHER,12.2X0.5X17" 553 "HOLDER,PE" 529 "ROLLER ASSY.,EJ" 554 "LEVER,PE" 530 "BUSHING,6" 555 "TORSION SPRING,0.22" 531 RETAINING RING 556 "LEVER,CR,LOCK" 532 "SPUR GEAR,28" 557 "GUIDE PLATE,CR" 533 "BUSHING,12,RIGHT" 558 "SHEET,CABLE" 534 "PLANE WASHER,4.1X0.5X6.5" 559 "SCREW,MOUNT,PF" 535 "PAPER GUIDE ASSY.,FRONT" 560 CARRIAGE 536 "GROUNDING WIRE,EJ" 564 "SLIDER,CR" APPENDIX Parts List 197 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-13. Stylus PHOTO 890 Parts List Code Table 7-13. Stylus PHOTO 890 Parts List Parts Name Code Parts Name 565 TIMING BELT 593 "PLAIN WASHER,5.1X0.7X11,S/NA" 566 "SHAET,CR" 594 "PLAIN WASHER,10.7X0.5X15.5,L/NA" 567 "PULLEY,DRIVEN" 599 "FRAME,MIDDLE" 568 "HOLDER,PULLEY,DRIVEN" 603 "TAPE,D50" 569 "COMPRESSION SPRING,23.52" 604 "BOARD ASSY.,ENCODER" 570 "LEVER,PG;C" 605 "SCALE,CR" 571 "LEVER,PG,SUPPORT" 606 "SCALE,PF" 572 "TORSION SPRING,63.7" 607 "MOUNTING PLATE,SCALE" 573 "GROUNDING PLATE,HEAD" 608 "FFC,ENCODER" 574 "COMBINATION GEAR,13.5,30" 609 "EXTENSION SPRING,1.494" 575 "BUSHING,PULLEY,DRIVEN" 610 "MINI CRAMP,UAMS-05SN" 577 "SHAFT,PULLEY,DRIVEN" 611 "SCALLOP SPRING PIN-AW,2X10,F/B" 578 "EXTENSION SPRING,0.618" 612 "C.B.P-TITE SCREW,3X8,F/ZN" 579 "LEVER,PLANET" 613 "MOUNTING PLATE,BOARD ASSY." 580 "HARNESS,PE" 614 "FRAME,RIGHT,REAR" 581 "HARNESS,ASF" 616 "EXTENSION SPRING,7.37" 582 "SHAFT,SPUR GEAR,PLANET" 618 "LEVER ASSEMBLY,COMBINATION GEAR" 585 "U-TYPE SPRING,5.2X0.13X10,S/NA" 619 "SET RING,D8.8" 586 "COMBINATION GEAR,14,28" 620 "MOTOR ASSY,ASF" 587 C.B.S. SCREW 621 "P.W.,3.1X0.5X12,F/ZN" 588 C.P.SCREW 622 RETAINING RING 589 LEAF SPRING 623 "COMBINATION GEAR,17.19,25.6" 590 "PLAIN WASHER,3.3X0.5X8,F/UC" 624 "COMBINATION GEAR,12,22.92" 591 "C.B.P-TITE,2.5X5,F/ZN" 625 "LEVER,DE,LOCK" 592 "PLAIN WASHER,6.2*0.2*9,L/NA" 626 "MOUNTING PLATE,MOTOR,ASF" APPENDIX Parts List 198 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-13. Stylus PHOTO 890 Parts List Code Table 7-13. Stylus PHOTO 890 Parts List Parts Name Code Parts Name 627 "COMPRESSION SPRIN,3.944" 720 "COMPRESSION SPRING,1.17" 628 "FERUTO,D3.6" 721 "EXTENSION SPRING,0.62" 637 "SHEET,INK STOPPER" 722 "LEVER,PAPERRETURN,RIGHT" 639 CUP SCREW 723 "EXTENSION SPRING,0.294" 641 "POROUS PAD,PAPER GUIDE,FRONT" 724 "ROLLER,LD,SUPPORT" 644 "+,BIND B-TITE SEMS W2,2.5X6,F/ZB" 725 "HOLDER,ROLLER,LD,SUPPORT,RIGHT" 645 "GROUNDING PLATE,PAPER GUIDE,FRONT" 726 "PAD ASSY.,LEFT" 700 PRINT HEAD 727 "LEVER,PAD,RELEASE,LEFT" 703 "C.B.P-TITE SCREW,3X6,F/ZN" 728 "HOLDER,EDGEGUIDE,LEFT" 704 "CABLE,HEAD" 729 "LEVER,PAPERRETURN,LEFT" 705 "HOLDER,CABLE" 730 "HOLDER, ROLLER,LD,SUPPORT,LEFT" 706 "SPACER,CABLE HEAD" 731 "ROLLER ASSY.,LD,LEFT" 707 "FRAME,ASF;B" 732 "ROLLER ASSY.,LD,RIGHT" 708 HOPPER 733 "COVER,ROLLER,LD,LEFT" 709 EDGE GUIDE;E 734 "COVER,ROLLER,LD,RIGHT" 710 CORK 735 "COMPRESSION SPRING,1.961" 711 "SLIDER,EDGEGUIDE" 736 "LEVER,FASTEN,EDGEGUIDE;B" 712 "COMPRESSION SPRING,3.23" 737 "EXTENSION SPRING,0.088" 713 "PAD,BREAK,EDGE GUIDE" 738 "SHAFT,ROLLER,LD" 714 "REINFORCEMENT PLATE,HOPPER" 739 "LEVER,HOPPER,RELEASE" 715 "SPUR GEAR,32" 740 "WHEEL,DETECT" 716 "PAD ASSY.,RIGHT" 742 "C.C.P-TITE SCREW,3X8,F/ZN" 717 "LEVER,PAD,RELEASE,RIGHT" 745 "SHEET,PAPERFEED" 718 "ROD SPRING,HOLDER,PAD" 746 "HOLDER,SHEET,PAPERFEED" 719 "HOLDER,EDGEGUIDE,RIGHT" 747 "SHAFT,MOUNT,CR" APPENDIX Parts List 199 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-13. Stylus PHOTO 890 Parts List Code Table 7-13. Stylus PHOTO 890 Parts List Parts Name Code Parts Name 748 "C.B.S-TITE(P4),3X6,F/ZN" 802 "FRAME,ROLL PAPER,RIGHT" 751 "PAPER GUIDE,LOWER" 803 "STOPPER,ROLL PAPER" 752 "POROUS PAD,INK EJECT,LARGE;B" 805 "SHEET,ROLL PAPER" 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" APPENDIX Parts List 200 EPSON Stylus PHOTO 890/1280/1290 Revision C 7.5.2 Parts List for Stylus PHOTO 1280/1290 Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Parts Name Parts Name 130 BUTTON;C 100 HOUSING 131 "COVER,CABLE;B" 101 "COVER,PRINTER" 132 "BUTTON,PS;B" 102 "PAPER SUPPOT,ASSY" 136 OPTICAL TUBE 103 STACKER ASSY.;C 133 "BUTTON,CSIC" 104 "HOUSING,PANEL,RIGHT" 180 "LABEL,CAUTION;B" 105 "SHIELD PLATE,PANEL" 181 "LABEL,MODEL NAME;C" 106 "PANEL ASSY.,LEFT;C" 182 "LABEL,PAPER SET;B" 108 GROUNDING PLATE 200 "BOARD ASSY., MAIN" 109 "COVER,SHIELD PLATE,M/B,RIGHT" 300 "BOARD ASSY., POWER SUPPLY" 110 "COVER,PRINTER,SUPPORT" 330 HARNESS 111 "COVER,CABLE" 400 POWER CABLE ASSY. 112 "COVER,INLET,UPPER;B" 450 "BOARD ASSY.,PANEL" 113 "COVER,INLET,LOWER;B" 500 "PRINTER MECHANISM(ASP),M4S61-100" 114 "SHIELD PLATE,M/B" 501 "FRAME ASSY.,LEFT;B" 115 LOGO PLATE 10X40;C 502 "MOTOR ASSY.,PF" 116 "HOUSING,SUPPORT,RIGHT;C" 503 "GROUNDING PLATE,PAPER GUIDE,FRONT" 117 "HOUSING,SUPPORT,LEFT;C" 504 "COMBINATION GEAR,12,22.4" 119 FOOT 505 "FRAME,RIGHT,FRONT" 121 C.P.SCREW 506 "FRAME,UPPER" 122 C.B.S. SCREW 507 "MOTOR ASSY.,CR" 123 "C.B.(O) SCREW,4X5,F/ZG" 508 "PUMP,ASSY." 124 C.B.S. SCREW 509 CAP ASSY. 125 "C.B.P-TITE SCREW,3X8,F/ZN" 510 "FRAME,LOWER" 126 C.B.S. SCREW 511 "SHEET,PROTECT,INK" APPENDIX Parts List 201 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Table 7-14. Stylus PHOTO 1280/1290 Parts List Parts Name Code Parts Name 512 "FRAME,FRONT" 537 "GROUNDING SPRING,PF" 513 "BUSHING,PARALLELISM ADJUST,LEFT" 537 "GROUNDING SPRING,PF" 514 "BUSHING,PARALLELISM ADJUST,RIGHT" 538 "FRAME,PAPER EJECT;B" 515 "PAPER GUIDE,REAR" 539 "HOLDER,STAR WHEEL,RIGHT;B" 516 "ROLLER,PF" 540 "HOLDER,STAR WHEEL,LEFT;B" 517 "COMPRESSION SPRING,5.86" 541 "HOLDER,STARWHEEL,FRONT" 518 "BUSHING,12,LEFT" 542 "STAR WHEEL,8;G" 519 "TENSION BELT,PUMP TRANSMISSION" 543 "STARHWEEL,8;B" 520 "SPUR GEAR,15.2" 544 "RODSPRING,STARWHEEL;B" 521 "SPACER,C-RING" 545 "PAPER GUIDE,UPPER" 522 "SCALLOP SPRING PIN-AW,2X16,F/B" 546 "ROLLER,DRIVEN" 523 "SLEEVE,ROLOR,PF" 547 "PAPER GUIDE,RIGHT" 524 "SPUR GEAR,76" 548 "SHAFT,PAPER GUIDE,UPPER" 525 "SPACER,FASTEN,ROLLER,PF" 549 "SHAFT,ROLLER,DRIVEN" 526 "SPACER,FASTEN,ROLLER,PF;B" 550 "ROLLER,DRIVEN;D" 527 C-RING 551 "TORSION SPRING,117.6" 528 "PLANE WASHER,12.2X0.5X17" 552 "CIRCUIT ASSY,PE" 529 "ROLLER ASSY.,EJECT OUT" 553 "HOLDER,PE" 530 "BUSHING,6" 554 "LEVER,PE" 531 RETAINING RING 555 "TORSION SPRING,0.22" 532 "SPUR GEAR,28" 556 "LEVER,CR,LOCK" 533 "BUSHING,12,RIGHT" 557 "GUIDE PLATE,CR" 534 "PLANE WASHER,4.1X0.5X6.5" 558 "SHEET,CABLE" 535 "PAPER GUIDE ASSY.,FRONT" 559 "SCREW,MOUNT,PF" 536 "GROUNDING WIRE,EJ" 560 CARRIAGE APPENDIX Parts List 202 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Table 7-14. Stylus PHOTO 1280/1290 Parts List Parts Name Code Parts Name 561 CUP SCREW 588 C.P.SCREW 562 "GROUNDING PLATE,HEAD" 589 LEAF SPRING 563 OIL PAD 590 "PLAIN WASHER,3.3X0.5X8,F/UC" 564 "SLIDER,CR" 591 "C.B.P-TITE,2.5X5,F/ZN" 565 TIMING BELT 592 "PLAIN WASHER,6.2*0.2*9,L/NA" 566 "SHAFT ASSY.,CR,GUIDE" 593 "PLAIN WASHER,5.1X0.7X11,S/NA" 567 "PULLEY,DRIVEN" 594 "PLAIN WASHER,10.7X0.5X15.5,L/NA" 568 "HOLDER,PULLEY,DRIVEN" 598 "EXTENSION SPRING,0.29" 569 "COMPRESSION SPRING,23.52" 599 "FRAME,MIDDLE" 570 "LEVER,PG;B" 603 "TAPE,D50" 571 "LEVER,PG,SUPPORT" 604 "BOARD ASSY.,ENCODER" 572 "TORSION SPRING,63.7" 605 "SCALE,CR" 573 "HOLDER,PAPER SUPPORT,SUPPORT,UPPER" 606 "SCALE,PF" 574 "COMBINATION GEAR,13.5,30" 607 "MOUNTING PLATE,SCALE" 575 "BUSHING,PULLEY,DRIVEN" 608 "FFC,ENCODER" 577 "SHAFT,PULLEY,DRIVEN" 609 "EXTENSION SPRING,1.494" 578 "EXTENSION SPRING,0.618" 610 "MINI CRAMP,UAMS-05SN" 579 "LEVER,PLANET" 611 "SCALLOP SPRING PIN-AW,2X10,F/B" 580 "HARNESS,PE" 612 "C.B.P-TITE SCREW,3X8,F/ZN" 582 "SHAFT,SPUR GEAR,PLANET" 613 "MOUNTING PLATE,BOARD ASSY." 583 "PAPER SUPPORT,SUPPORT,UPPER,LEFT;B" 614 "FRAME,RIGHT,REAR" 584 "PAPER SUPPORT,SUUPPORT,UPPER" 616 "EXTENSION SPRING,7.37" 585 "U-TYPE SPRING,5.2X0.13X10,S/NA" 618 "LEVER ASSEMBLY,COMBINATION GEAR" 586 "COMBINATION GEAR,14,28" 619 "SET RING,D8.8" 587 C.B.S. SCREW 620 "MOTOR ASSY,ASF" APPENDIX Parts List 203 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Table 7-14. Stylus PHOTO 1280/1290 Parts List Parts Name Code Parts Name 621 "P.W.,3.1X0.5X12,F/ZN" 708 HOPPER;C 622 RETAINING RING 709 EDGE GUIDE;E 623 "COMBINATION GEAR,17.19,25.6" 710 CORK 624 "COMBINATION GEAR,12,22.92" 711 "SLIDER,EDGEGUIDE" 625 "LEVER,DE,LOCK" 712 "COMPRESSION SPRING,3.23" 626 "MOUNTING PLATE,MOTOR,ASF" 713 "PAD,BREAK,EDGE GUIDE" 627 "COMPRESSION SPRIN,3.944" 714 "SUPPORT PLATE,HOPPER;B" 628 "FERUTO,D3.6" 715 "SPUR GEAR,32" 629 "C.B.S-TITE(P4),3X6,F/ZN" 716 "PAD ASSY.,RIGHT" 630 "PLANE WASHER,4.5X0.5X8,L/NA" 717 "LEVER,PAD,RELEASE,RIGHT" 632 "HOLDER,STARWHEEL,SUPPORT;B" 718 "ROD SPRING,HOLDER,PAD" 633 "BUSHU,ROLLER PF,SUPPORT" 719 "HOLDER,EDGEGUIDE,RIGHT" 634 "LEVER,ROLLER PF,SUPPORT" 720 "COMPRESSION SPRING,1.17" 635 "MOUNTIN PLATE,LEVER,ROLLER PF,SUPPORT" 721 "EXTENSION SPRING,0.62" 636 "EXTENSION SPRING,10.1" 722 "LEVER,PAPERRETURN,RIGHT" 637 "SHEET,INK STOPPER" 723 "EXTENSION SPRING,0.294" 638 "HOLDER,ROLLER PF,SUPPORT" 724 "ROLLER,LD,SUPPORT" 641 "POROUS PAD,PAPER GUIDE,FRONT" 725 "HOLDER,ROLLER,LD,SUPPORT,RIGHT" 700 PRINT HEAD 726 "PAD ASSY.,LEFT" 701 RETAINING RING 727 "LEVER,PAD,RELEASE,LEFT" 703 "C.B.P-TITE SCREW,3X6,F/ZN" 728 "HOLDER,EDGEGUIDE,LEFT" 704 "CABLE,HEAD" 729 "LEVER,PAPERRETURN,LEFT" 705 "HOLDER,CABLE" 730 "HOLDER, ROLLER,LD,SUPPORT,LEFT" 706 "SPACER,CABLE HEAD" 731 "ROLLER ASSY,LD,LEFT" 707 "FRAME,ASF" 732 "ROLLER ASSY,LD,RIGHT" APPENDIX Parts List 204 EPSON Stylus PHOTO 890/1280/1290 Revision C Table 7-14. Stylus PHOTO 1280/1290 Parts List Code Table 7-14. Stylus PHOTO 1280/1290 Parts List Parts Name Code Parts Name 733 "COVER,ROLLER,LD,LEFT" 762 "COVER,PLAT SPRING,CARTRIDGE" 734 "COVER,ROLLER,LD,RIGHT" 763 "DETECTOR,HP;E" 735 "COMPRESSION SPRING,1.961" 764 CORK;B 736 "LEVER,FASTEN,EDGEGUIDE;B" 765 "CLEANER HEAD,ASP" 737 "EXTENSION SPRING,0.088" 766 "POLUS PAD,SMALL" 738 "SHAFT,ROLLER,LD" 769 "+,BIND B-TITE SEMS W2,2.5X6,F/ZB" 739 "LEVER,HOPPER,RELEASE" 774 "DUMPER,SUPPORT;B" 740 "WHEEL,DETECT" 775 "SEAT,PAPER EJECT" 741 "STRENGTHEN PLATE,FRAME,ASF" 776 "POROUS PAD,INK EJECT,PUMP;S" 742 "C.C.P-TITE SCREW,3X8,F/ZN" 780 ASF ASSY.;D 743 "POLUS PAD,FL" 781 "PAPER LOADING ASSY.,LEFT" 745 "SHEET,PAPERFEED" 782 "PAPER LOADING ASSY.,RIGHT" 746 "HOLDER,SHEET,PAPERFEED" 783 "TRAY ASSEMBLY,POROUS PAD" 747 "SHAFT,MOUNT,CR" 800 "MOUNTING PLATE,ROLL PAPER,HOLDER" 748 "C.B.S-TITE(P4),3X6,F/ZN" 801 "FRAME,ROLL PAPER,LEFT" 749 "HARNESS,ASF" 802 "FRAME,ROLL PAPER,RIGHT" 750 "PAPER SUPPORT,HOPPER" 803 "STOPPER,ROLL PAPER" 751 "PAPER GUIDE,LOWER" 805 "SHEET,ROLL PAPER" 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" APPENDIX Parts List 205
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