Ricoh M118, Service Manual

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SM iii M118/M119
After installing a new paper feed roller ............................................... 4-39
4.8.2 FRICTION PAD .............................................................................. 4-40
4.8.3 PAPER END SENSOR ................................................................... 4-40
4.8.4 BY-PASS FEED ROLLER .............................................................. 4-41
4.8.5 BY-PASS FEED ROLLER FRICTION PAD .................................... 4-42
4.8.6 BY-PASS FEED SENSOR .............................................................. 4-43
4.8.7 PAPER FEED CLUTCH .................................................................. 4-44
4.8.8 RELAY CLUTCH ............................................................................ 4-45
4.8.9 REGISTRATION CLUTCH ............................................................. 4-45
4.8.10 TONER END SENSOR ............................................................ 4-46
4.8.11 PAPER EXIT SENSOR ............................................................ 4-46
4.8.12 RELAY SENSOR ..................................................................... 4-47
4.8.13 INVERTER SENSOR ............................................................... 4-47
4.8.14 REGISTRATION ROLLER AND SENSOR .............................. 4-48
4.9 PAPER TRANSFER ................................................................................ 4-51
4.9.1 TRANSFER ROLLER ..................................................................... 4-51
After installing a new transfer roller .................................................... 4-51
4.10 FUSING .............................................................................................. 4-52
4.10.1 FUSING UNIT .......................................................................... 4-52
Reinstallation ...................................................................................... 4-54
After installing a new fusing unit ......................................................... 4-54
4.10.2 THERMOSTAT ........................................................................ 4-55
4.10.3 THERMISTOR ......................................................................... 4-56
4.10.4 FUSING LAMP ......................................................................... 4-56
When reinstall the fusing lamp ........................................................... 4-57
4.10.5 HOT ROLLER .......................................................................... 4-58
4.10.6 PRESSURE ROLLER .............................................................. 4-58
4.10.7 HOT ROLLER STRIPPER PAWLS .......................................... 4-59
4.11 MOTORS ........................................................................................... 4-60
4.11.1 MAIN MOTOR .......................................................................... 4-60
4.11.2 DUPLEX MOTOR (FOR M119) ............................................... 4-60
4.12 ELECTRICAL COMPONENTS .......................................................... 4-61
4.12.1 LAYOUT OF PC BOARDS ....................................................... 4-61
USB Host Board ................................................................................. 4-61
ECB (Engine Controller Board) .......................................................... 4-62
When installing the new ECB (Engine Controller Board) .................... 4-63
EEPROM ............................................................................................ 4-63
Controller Board ................................................................................. 4-64