Epson Stylus Pro 4900/Epson Stylus Pro 4910  Revision A
7
Confidential
Contents
Chapter 1 PRODUCT DESCRIPTION
1.1 Product Description  ............................................................................................ 11
1.2 Basic Specifications . ........................................................................................... 13
1.2.1 Basic Specifications ................................................................................... 13
1.2.2 Electric Specifications  ............................................................................... 13
1.2.3 Ink Specifications  ...................................................................................... 14
1.2.4 General Specifications  ............................................................................... 14
1.2.5 Reliability/Durability . ................................................................................ 15
1.3 Printing Specifications ........................................................................................ 16
1.3.1 Paper Feed Specifications .......................................................................... 16
1.3.2 Paper Specification  .................................................................................... 16
1.3.3 Printable Area  ............................................................................................ 23
1.3.4 Borderless Printing Specification  . ............................................................. 24
1.3.5 Cutting of Roll Paper ................................................................................. 25
1.4 Hardware Specifications . .................................................................................... 26
1.4.1 Dimensions and Weight ............................................................................. 26
1.4.2 Part Names . ................................................................................................ 27
1.5 Control Panel  . ..................................................................................................... 29
1.5.1 Setup Menu ................................................................................................ 34
1.5.2 Maintenance Mode  . ................................................................................... 42
1.5.3 Serviceman Mode  ...................................................................................... 43
Chapter 2 TROUBLE SHOOTING
2.1 Overview  . ........................................................................................................... 47
2.1.1 Preliminary Check  . .................................................................................... 47
2.1.2 Troubleshooting Procedure ........................................................................ 48
2.1.3 Procedure after troubleshooting . ................................................................ 48
2.2 Remedies for Maintenance Requests .................................................................. 49
2.3 Remedies for Service Call Error ......................................................................... 51
2.4 Remedies for Error Messages related to SpectroProofer  ................................... 74
2.5 Remedies for Print Quality Troubles . ................................................................. 76
2.6 Trouble on Paper Feeding  .................................................................................. 83
2.7 Printer does not Operate . .................................................................................... 87
2.8 Abnormal Operations  . ........................................................................................ 89
2.9 Problems on SpectroProofer . .............................................................................. 91
2.10 Trouble on Service Program . ............................................................................ 94
2.11 Trouble on NVRAM Viewer . ........................................................................... 97
2.12 Trouble on Colorimetric Calibration Adjustment program .
............................. 98
Chapter 3 DISASSEMBLY & ASSEMBLY
3.1 Overview  . ......................................................................................................... 100
3.1.1 Precautions . .............................................................................................. 100
3.1.2 Cautions after assembling ........................................................................ 102
3.1.3 Orientation Definition . ............................................................................. 102
3.1.4 Recommended Tools  . .............................................................................. 103
3.2 Parts Diagram . .................................................................................................. 104
3.3 Disassembly Flowchart  . ................................................................................... 115
3.4 Disassembly and Assembly Procedure . ............................................................ 124
3.4.1 Preparation for servicing  . ........................................................................ 124
3.4.2 Housing . ................................................................................................... 133
3.4.3 Electric Circuit Components  ................................................................... 152
3.4.4 Carriage Mechanism . ............................................................................... 168
3.4.5 Paper Feed Mechanism . ........................................................................... 182
3.4.6 ASF Unit . ................................................................................................. 202
3.4.7 ROLL Unit . .............................................................................................. 216
3.4.8 Cutter Unit  . .............................................................................................. 223
3.4.9 Ink System Mechanism  . .......................................................................... 229
3.4.10 Color Measurement Device and Backing Replacement  . ....................... 255
3.4.11 Housing . ................................................................................................. 257
3.4.12 Color Measurement Device Parts  . ......................................................... 264