SP890&1290 Stylus_photo_890,1280,1290_service_manual Stylus Photo 890,1280,1290 Service Manual

• EPSON Stylus PHOTO 890/1280/1290
  • PRODUCT DESCRIPTIONS
    • 1.1 Overview
      • 1.1.1 Features
      • 1.1.2 Accessories, Consumable Products, and Options
    • 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
    • 1.3 Interface
      • 1.3.1 Parallel Interface (Forward Channel)
      • 1.3.2 Parallel Interface (Reserve Channel)
      • 1.3.3 USB Interface
      • 1.3.4 Prevention of Data Transfer Time-out
      • 1.3.5 Interface Selection
      • 1.3.6 IEEE1284.4 Protocol
    • 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
    • 1.5 Dimension
  • OPERATING PRINCIPLES
    • 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
    • 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
  • 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
        • 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
  • 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
      • 4.2.1 HOUSING Removal
      • 4.2.2 Circuit Board Assembly Removal
      • 4.2.3 Panel Unit Removal
      • 4.2.4 Printhead Unit Removal
      • 4.2.5 TRAY, ABSORBER ASSEMBLY Removal
      • 4.2.6 Ink Unit Removal
      • 4.2.7 MOTOR ASSEMBLY, CR Removal
      • 4.2.8 MOTOR ASSEMBLY, ASF Removal
      • 4.2.9 DE Unit Removal
      • 4.2.10 ASF Unit Removal
        • 4.2.10.1 SHAFT, ROLLER, LD Removal
        • 4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal
      • 4.2.11 Carriage Unit Removal
      • 4.2.12 BOARD ASSEMBLY, ENCODER Removal
      • 4.2.13 ROLLER, PF Removal
        • 4.2.13.1 SCALE, PF Installation
      • 4.2.14 MOTOR ASSEMBLY, PF Removal
      • 4.2.15 PE Sensor Unit Removal
  • ADJUSTMENT
    • 5.1 Overview
      • 5.1.1 Adjustment Items
      • 5.1.2 Adjustment Tools
    • 5.2 Adjustment
      • 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
    • 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
    • 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
        • 5.4.1.8 Waste Ink Pad Replacement
        • 5.4.1.9 Clogged Nozzle Recovery
  • 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
  • APPENDIX
    • 7.1 Connector Summary
      • 7.1.1 Connector Alignment
      • 7.1.2 Connector Pin Assignment
      • 7.1.3 EEPROM Address Map
    • 7.2 Circuit Board Component Layout
    • 7.3 Electrical Circuit Board Diagrams
    • 7.4 Exploded Diagrams
      • 7.4.1 Exploded Diagrams for Stylus PHOTO 890
      • 7.4.2 Exploded Diagrams for Stylus PHOTO 1280/1290
    • 7.5 Parts List
      • 7.5.1 Parts List for Stylus PHOTO 890
      • 7.5.2 Parts List for Stylus PHOTO 1280/1290