Epson GT-S80 GT-S50 Service Manual

Service Manual Epson GT-S80 GT-S50;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Epson scanner.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Epson GT-S80 GT-S50. You can find easily everything what do you need.
To see what contain, please read table of contents:

Chapter 1) PRODUCT DESCRIPTION
1.1 Features
1.2 Specifications
1.3 Operating System Compatibility
1.4 Interface
1.5 Exterior Specifications
1.5.1 Operation Buttons
1.5.2 LED Indicator
1.5.3 Dimensions
1.5.4 Maximum Document Size and Placement
1.6 Control Codes
1.7 Error-Time Processing

Chapter 2) OPERATING PRINCIPLES
2.1 Engine Operation Outline
2.1.1 Carriage Unit
2.2 Document Feeding Mechanism
2.2.1 Configuration
2.2.2 Scanning Operation
2.2.3 Detecting Double Feeding (GT-S80 only)

Chapter 3) TROUBLESHOOTING
3.1 Overview
3.1.1 Self-Diagnostic Function
3.2 Troubleshooting

Chapter 4) DISASSEMBLY / ASSEMBLY
4.1 Overview
4.1.1 Precautions
4.1.2 Recommended Tools
4.1.3 Recommended Screws
4.1.4 Protection for Transportation
4.1.5 Differences between the Models
4.2 Disassembly Procedure
4.2.1 Input Tray Assy
4.2.2 Separator Module/Paper Feed Roller/Separation Pad
4.2.3 Switch Holder/ DC Cable Connector
4.2.4 Base Cover/Switch Harness/Foot
4.2.5 Top unit
4.2.6 Main Board Assy
4.2.7 Bottom Cover
4.2.8 Carriage Assy (Bottom)
4.2.9 Ultra Sonic RX Board/Ultra Sonic Sensor (Receiver) (GT-S80 only)
4.2.10 Door Sensor
4.2.11 Bottom Cover Mylar/Edge Guide
4.2.12 Hinge Cover
4.2.13 Front Cover/LCM Board/Display Cover
4.2.14 Carriage Assy (Top)
4.2.15 Paper Path Sensor
4.2.16 Ultra Sonic TX Board/Ultra Sonic Sensor (transmitter)
4.2.17 Metal Frame Assy
4.2.18 Top Cover Assy

Chapter 5) ADJUSTMENT
5.1 Adjustment Items and Overview
5.1.1 List of Adjustment Items
5.1.2 Required Adjustments after Removing/Replacing Parts
5.2 Adjustment Program Overview
5.2.1 Operational Environment
5.2.2 How to Use Adjustment Program
5.2.2.1 File and folder structure of the Adjustment Program
5.2.2.2 Starting up the Adjustment Program
5.3 Adjustment
5.3.1 Reading and Writing EEPROM Data
5.3.2 Shading Adjustment
5.3.3 Find Edge Adjustment
5.3.4 Firmware Version Check
5.3.5 Firmware Update
5.3.5.1 Firmware update of the Main Board 85
5.3.5.2 Firmware update of the Panel 86
5.4 Test Charts Maintenance

Chapter 6) MAINTENANCE
6.1 Overview
6.1.1 Cleaning
6.1.2 Lubrication

Chapter 7) APPENDIX
7.1 Connectors
7.1.1 Connector Reference Table
7.1.2 Connector Arrangement

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