Epson EPL-5900 Service Manual page 20

EPSON EPL-5900/EPL-5900L
4.3.10 Printing Head Unit Removal ...................................................... 106
4.3.11 Paper Empty Sensor (PE1) Removal.......................................... 107
4.3.12 Top Cover and Rear Cover Removal ......................................... 107
4.3.13 Fuser Unit Removal.................................................................... 108
4.3.14 Fuser Unit Disassembly.............................................................. 109
4.3.15 Power Supply Unit and High Voltage Board Removal.............. 113
4.3.16 Main Motor Assy (M1) Removal ............................................... 115
4.4 500-sheet Lower Cassette Unit (Optional) ........................................... 117
4.4.1 Second Paper Feed Roller Removal ............................................. 117
4.4.2 Second Paper Feed Unit Removal ................................................ 118
4.4.3 Relay Board (PWB-A) Removal .................................................. 119
4.4.4 Cassette Type Detect Switch (SW21) Removal ........................... 119
4.4.5 Second Paper Feed Solenoid (SL21) Removal ............................ 120
Chapter 5 Adjustment
5.1 Overview............................................................................................... 122
5.2 USB ID Input ........................................................................................ 123
5.2.1 Installation Procedure for Program .............................................. 123
5.2.2 Procedure for Program Operation ................................................ 123
5.2.3 USB ID Confirmation................................................................... 125
Chapter 6 Maintenance
6.1 Overview............................................................................................... 127
6.1.1 Cleaning........................................................................................ 127
6.1.2 Maintenance ................................................................................. 127
Chapter 7 Appendix
7.1 Connectors ............................................................................................ 129
7.1.1 Circuit Boards............................................................................... 129
7.1.1.1 Connectors on Main Board Assy (EPL-5900) .................................. 129
7.1.1.2 Connectors on Main Board Assy (EPL-5900L) ................................ 130
7.1.1.3 Interface Board (C409I/F)................................................................. 131
7.1.1.4 PU1 (Power Supply Unit) Board....................................................... 131
7.1.1.5 HV1 (High Voltage Unit) Board ....................................................... 131
7.2 Circuit Board Component Layout......................................................... 132
7.3 Circuit Diagrams ................................................................................... 137
7.4 Exploded Diagrams............................................................................... 145
7.5 ASP List ................................................................................................ 158
Revision B
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