Epson Stylus Photo785EPX Manuals

Manuals and User Guides for Epson Stylus Photo785EPX. We have 1 Epson Stylus Photo785EPX manual available for free PDF download: Service Manual

Epson Stylus Photo785EPX Service Manual (192 pages)

Color Inkjet Printer

Brand: Epson | Category: Printer | Size: 6.44 MB

Service Manual
1
About this Manual
4
Manual Configuration
4
Symbols Used in this Manual
4
Table of Contents
6
Chapter 1 PRODUCT DESCRIPTION

9
Features

10
Specifications

11
- Physical Specification
  11
- Printing Specification
  11
- Paper Feeding
  12
- Input Data Buffer
  12
- Electric Specification
  12
- Environmental Condition
  12
- Reliability
  13
- Safety Approvals
  13
- Acoustic Noise
  13
- CE Marking
  13
Interface

14
- USB Interface
  14
PCMCIA Card Slot

15
- Card Slot Standard
  15
- Supported Memory Card
  15
- Supported Voltage
  15
- Attached Card Adapter Imformation
  15
Standalone Print Function

16
- File System
  16
- File Format
  16
- Valid Image Sizes
  17
- Maximum Number of Photo Data Files
  17
- Thumbnail Image Data
  17
- File Sort
  17
  - File Sort Rule
    17
  - Date Data Capture Rule
    17
  - Date Range
    17
Printer PNL Operation Specifications

18
- Switches
  18
- Indicators
  18
- Panel Functions
  18
- Printer Condition and Panel Status
  19
Printer Initialization

20
Initial Setting Values

20
Errors

21
Printing of Filled Patterns

21
Monochrome PNL Operation Specification

22
- Appearance
  22
- Swith Function
  23
- Process LED
  23
- Error Display (LCD)
  23
Paper

24
- Paper Handling
  24
- Paper Specification
  24
  - Cut Sheet
    24
  - Envelope
    24
  - EPSON Special Media
    24
- Printing Area
  27
  - Cut Sheet
    27
  - Envelopes
    28
Ink Cartridge

29
- Black Ink Cartridge
  29
- Color Ink Cartridge
  29
Accessories and Option

30
Changing the Model Name

30
Chapter 2 Operating Principles

31
Overview

32
- Printer Mechanism
  32
- Printhead
  33
  - Printing Process
    34
  - Printing Method
    35
- Carriage Mechanism
  35
- Paper Feeding Mechanism
  37
- Paper Loading Mechanism (ASF Unit)
  38
- Operating Principles
  41
- Ink System Mechanism
  42
  - Pump Unit & Wiper Mechanism
    42
  - Capping Mechanism
    43
Electrical Circuit Operating Principles

44
- C408 PSE Board
  45
  - Process How 42VDC, 5VDC and 3.3VDC Are Generated
    46
  - Protection Circuit
    46
  - PS Control Function
    47
  - Power Saving Mode
    47
- C408/C498 MAIN Board
  48
  - Main Elements
    50
  - Printhead Driver Circuit
    51
  - CR Motor Driver Circuit
    52
  - PF Motor Driver Circuit
    52
  - ASF Motor Drive Circuit
    53
  - Reset and EEPROM Circuits
    53
  - Sensor Circuit
    54
Chapter 3 Troubleshooting

55
Overview

56
Troubleshooting with LED Error Indications

57
Chapter 4 Disassembly and Assembly

69
Overview

70
- Precautions
  70
- Tools
  72
- Work Completion Check
  73
Disassembly

74
- Housing Removal
  75
- Operation Panel Removal
  77
  - Printer Panel Board Removal
    77
  - Monochrome Panel Board Removal
    79
- Housing Lower Cover Removal
  80
  - Housing Lower Cover Left Removal
    80
  - Housing Lower Cover Right Removal
    81
- Printhead Removal
  81
- CR Motor Removal
  84
- Waste Drain Ink Pad Unit Removal
  85
- Printer Mechanism Removal
  86
- Circuit Board Removal
  87
- LD Roller Removal
  90
- HP/PE Sensor Removal
  94
- Ink System Unit Removal (Cap & Pump Unit )
  95
- ASF Motor Removal
  99
- Paper Eject Roller Removal
  100
- PF Motor Removal
  102
- CR Unit Removal
  104
- Paper Feed Roller Removal
  107
- Disassembling ASF Frame Unit
  110
Preview Monitor Disassembly Procedure

113
- Back Case Removal
  113
- Removal of the Control Board Unit
  114
- Panel Unit Removal
  115
Chapter 5 Adjustment

116
Outline

117
- Adjustment Items
  117
Parallel Adjustor

118
Adjustments with the Service Program

120
- Outline
  120
- Starting up the Service Program
  120
- EEPROM Initial Setting
  122
- Head ID
  123
- Bi-D
  124
- Usb ID
  125
- Memory Card Drive Confirmation
  126
- First Dot Position Adjustment
  126
- Head Cleaning
  127
- Ink Charge
  127
- Refurbishment for DOA
  128
- Protection Counter
  129
- EEPROM Backup Data
  130
- Printing on Normal A4 Paper
  131
- EEPROM Data
  132
Firmware Update

133
- Firmware Update Method
  133
- Firmware Version Check Method
  133
Adjustment/Inspection of the Preview Monitor

134
- Update to the Firmware for Inspection
  134
- Brightness Adjustment
  135
  - Brightness Adjustment Procedures
    135
- Image Pattern Inspection
  136
Chapter 6 Maintenance

137
Overview

138
- Cleaning
  138
- Service Maintenance
  139
Chapter 7 Appendix

146
Connector Summary

147
Parts List and Exploded Diagram

160
- Stylus PHOTO 895/785EPX
  160
- Stylus PHOTO 915/825
  169
Electrical Circuits

183

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Epson Stylus Photo785EPX Service Manual (192 pages)

Table of Contents

Chapter 1 PRODUCT DESCRIPTION

Features

Specifications

Interface

PCMCIA Card Slot

Standalone Print Function

Printer PNL Operation Specifications

Printer Initialization

Initial Setting Values

Errors

Printing of Filled Patterns

Monochrome PNL Operation Specification

Paper

Ink Cartridge

Accessories and Option

Changing the Model Name

Chapter 2 Operating Principles

Overview

Electrical Circuit Operating Principles

Chapter 3 Troubleshooting

Overview

Troubleshooting with LED Error Indications

Chapter 4 Disassembly and Assembly

Overview

Disassembly

Preview Monitor Disassembly Procedure

Chapter 5 Adjustment

Outline

Parallel Adjustor

Adjustments with the Service Program

Firmware Update

Adjustment/Inspection of the Preview Monitor

Chapter 6 Maintenance

Overview

Chapter 7 Appendix

Connector Summary

Parts List and Exploded Diagram

Electrical Circuits

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