Oki PACEMARK 4410 Maintenance Manual page 5

3.3.16 Operator Board (POA Printed Board) ...................................................... 70
3.3.17 Ribbon Feed Assy ................................................................................... 71
3.3.18 Printing Head ........................................................................................... 72
3.3.19 Head Cable ............................................................................................. 73
3.3.20 Ribbon Protector ..................................................................................... 74
3.3.21 Space Motor Fan ..................................................................................... 75
3.3.22 Junction Board ........................................................................................ 76
3.3.23 Cover Open Switch Assy / Ribbon Rotation Sensor ............................... 77
3.3.24 Interlock Switch / Interlock Switch Cord Assy ......................................... 78
3.3.25 Knob Bracket Assy .................................................................................. 79
3.3.26 Space Belt ............................................................................................... 80
3.3.27 AG Sensor Frame / Start Searching Sensor ........................................... 81
3.3.28 Paper Jam Sensor Assy / Bail PE Sensor Assy ...................................... 82
3.3.29 Sprocket Assy (L) (R) (Front Tractor) ...................................................... 83
3.3.30 Sheet Feeder Assy (L) Rear / Sheet Feeder Assy (R) Rear ................... 84
3.3.31 Bail Assy .................................................................................................. 87
4. ADJUSTMENTS ........................................................................................ 88
5. CLEANIG AND LUBRICATION ................................................................ 95
5.1 Cleaning............................................................................................. 95
5.2 Lubrication ......................................................................................... 96
6. TROUBLESHOOTING AND REPAIR ....................................................... 104
6.1 Items to Check Before Repair............................................................ 104
6.2 Troubleshooting Table ....................................................................... 104
6.3 Lamp and LCD Display ...................................................................... 105
6.4 Part Layout ........................................................................................ 110
6.5 Connection ......................................................................................... 113
6.6 Troubleshooting Flow Chart............................................................... 130
7. PARTS LIST .............................................................................................. 161
APPENDIX A PCB LAYOUT .......................................................................... 202
APPENDIX B RS-232C SERIAL INTERFACE BOARD (OPTION) ............... 205
1. GENERAL.......................................................................................... 205
2. OPERATION DESCRIPTION ............................................................ 206
2.1 Element Description ................................................................................ 206
2.2 Circuit Description ................................................................................... 206
2.3 Local Test ................................................................................................ 209
APPENDIX C MAINTENANCE-SUPPORT FUNCTION ................................ 211
1. Normal mode ..................................................................................... 211
2. Maintenance mode 1 ......................................................................... 212
3. Maintenance mode 2 ......................................................................... 213
40496501TH Rev.1
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