Olivetti PG L22 Special, Service Manual, Page: 5 / 165

Y103920-3 Service Manual
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4.2 Cleaning .......................................................................................................... 50
4.2.1 Cleaning of LED Lens Array ..................................................................................... 50
4.2.2 Cleaning Page Function ............................................................................................ 51
5. TROUBLESHOOTING PROCEDURES .................................................................. 52
5.1 Troubleshooting Tips ...................................................................................... 52
5.2 Points to Check before Correcting Image Problems ....................................... 52
5.3 Tips for Correcting Image Problems ............................................................... 52
5.4 Preparation for Troubleshooting ..................................................................... 53
5.5 Troubleshooting Flow ...................................................................................... 53
5.5.1 LCD Status Message/Problem List ........................................................................... 53
5.5.2 LCD Message Troubleshooting ................................................................................. 59
5.5.3 Image Troubleshooting ............................................................................................. 67
6. WIRING DIAGRAM ................................................................................................ 76
6.1 Interconnect Signal Diagram ........................................................................... 76
6.2 PCB Layout and Connector Signal List ........................................................... 77
6.3 Resistance Check ........................................................................................... 89
APPENDIX A RS-232C SERIAL INTERFACE (OPTION) .......................................... 91
APPENDIX B CENTRONICS PARALLEL INTERFACE ............................................ 96
APPENDIX C UNIVERSAL SERIAL BUS (USB) ..................................................... 105
APPENDIX D LOOP TEST (RS-232C INTERFACE) ............................................... 111
APPENDIX E DIAGNOSTICS TEST ........................................................................ 112
APPENDIX F MULTI PURPOSE FEEDER MAINTENANCE ................................... 122
1. OUTLINE ...................................................................................................... 122
1.1 Functions ................................................................................................................ 122
1.2 External View and Component Names ................................................................... 122
2. MECHANISM DESCRIPTION ...................................................................... 123
2.1 General Mechanism ................................................................................................ 123
2.2 Hopper Mechanism ................................................................................................. 123
3. PARTS REPLACEMENT .............................................................................. 124
3.1 Precautions Concerning Parts Replacement .......................................................... 124
3.2 Parts Layout ............................................................................................................ 125
3.3 Parts Replacement Methods ................................................................................... 126
3.3.1
Link ........................................................................................................... 126
3.3.2 Separator .................................................................................................. 127
3.3.3 OLEV-11-PCB .......................................................................................... 128
3.3.4 Pulse Motor ............................................................................................... 129
3.3.5 Planet Gear ............................................................................................... 130
3.3.6 Roller-A and B .......................................................................................... 131
4. TROUBLESHOOTING .................................................................................. 132
4.1 Precautions Prior to the Troubleshooting ................................................................ 132
4.2 Preparations for the Troubleshooting ...................................................................... 132
4.3 Troubleshooting Method ......................................................................................... 133
4.3.1
LCD Status Message List ......................................................................... 133