Epson Perfection 4490 Photo - Page 7

EPSON Perfection 4490 Photo Revision B
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Chapter 5 ADJUSTMENT
5.1 Overview ............................................................................................................. 58
5.1.1 Adjustment item.......................................................................................... 58
5.1.2 Adjustment method..................................................................................... 58
5.1.3 Adjustment of Torsion Springs on the TPU CR Drive Belt ....................... 58
Chapter 6 Maintenance
6.1 Overview ............................................................................................................. 60
6.1.1 Cleaning...................................................................................................... 60
6.1.2 Lubrication.................................................................................................. 60
Chapter 7 APPENDIX
7.1 Connectors........................................................................................................... 64
7.1.1 Connector Reference Table ........................................................................ 64
7.1.2 Connector Configuration ............................................................................ 64
7.2 Circuit Diagrams ................................................................................................. 65
7.3 Exploded diagram................................................................................................ 73
7.4 Parts List.............................................................................................................. 78
7.5 Optional Part; Auto Document Feeder ................................................................ 79
7.5.1 Overview..................................................................................................... 79
7.5.2 Basic specifications .................................................................................... 79
7.5.3 Interface ...................................................................................................... 81
7.6 ADF; Disassembly............................................................................................... 82
7.6.1 Removal of B81334 Main Board................................................................ 82
7.6.2 ASF Part...................................................................................................... 83
7.6.3 Disassembly of ASF and Frame ................................................................. 89
7.6.4 Disassembly of ASF Assembly .................................................................. 91
7.7 ADF; Lubrication ................................................................................................ 97
7.8 ADF; Exploded diagram...................................................................................... 98
7.9 ADF; Parts List.................................................................................................. 104