Ricoh G188 Service Manual page 16

4.7.2 IMAGE TRANSFER BELT CLEANING UNIT ..................................4-33
4.7.3 IMAGE TRANSFER BELT...............................................................4-34
When reinstalling the image transfer belt............................................4-37
4.8 PAPER TRANSFER .................................................................................4-40
4.8.1 PAPER TRANSFER ROLLER UNIT ...............................................4-40
4.8.2 PAPER TRANSFER UNIT...............................................................4-40
4.8.3 HIGH VOLTAGE SUPPLY BOARD - DISCHARGE PLATE ...........4-41
4.8.4 ID SENSOR BOARD .......................................................................4-42
Cleaning for ID sensors ......................................................................4-43
After installing a new ID sensor unit/board..........................................4-44
4.8.5 TEMPERATURE AND HUMIDITY SENSOR ..................................4-44
4.9 DRIVE UNIT .............................................................................................4-45
4.9.1 GEAR UNIT.....................................................................................4-45
When installing the drive unit ..............................................................4-50
Adjustment after replacing the gear unit .............................................4-50
4.9.2 REGISTRATION MOTOR ...............................................................4-50
4.9.3 PAPER FEED MOTOR ...................................................................4-51
4.9.4 DRUM/DEVELOPMENT MOTORS FOR M, C, AND Y ...................4-52
4.9.5 DRUM/DEVELOPMENT MOTOR-K................................................4-52
4.9.6 ITB DRIVE MOTOR.........................................................................4-53
4.9.7 FUSING/PAPER EXIT MOTOR ......................................................4-53
4.9.8 IMAGE TRANSFER BELT CONTACT MOTOR ..............................4-54
4.9.9 DUPLEX INVERTER MOTOR.........................................................4-54
4.9.10 PRESSURE ROLLER CONTACT MOTOR ...............................4-56
4.9.11 DUPLEX/BY-PASS MOTOR......................................................4-56
4.9.12 PAPER TRANSFER CONTACT MOTOR..................................4-58
4.9.13 TONER TRANSPORT MOTOR .................................................4-59
4.9.14 TONER COLLECTION UNIT .....................................................4-59
4.9.15 PAPER FEED CLUTCHES ........................................................4-60
4.9.16 DEVELOPMENT CLUTCH-Y.....................................................4-63
4.9.17 DEVELOPMENT CLUTCHES FOR M AND C ...........................4-64
4.9.18 DEVELOPMENT CLUTCH-K.....................................................4-65
4.10 FUSING ..............................................................................................4-66
4.10.1 FUSING UNIT ............................................................................4-66
4.10.2 HEATING ROLLER AND HEATING ROLLER BEARING..........4-67
When re-installing the heating roller....................................................4-71
4.10.3 FUSING CLEANING FELT ........................................................4-71
When attaching a new fusing cleaning felt..........................................4-72
4.10.4 FUSING LAMP...........................................................................4-72
4.10.5 FUSING DRIVE GEAR ..............................................................4-74
4.10.6 PRESSURE ROLLER AND PRESSURE ROLLER BEARING ..4-74
When re-installing the pressure roller .................................................4-76
4.10.7 HEATING ROLLER THERMISTOR ...........................................4-77
4.10.8 PRESSURE ROLLER THERMOSTAT ......................................4-78
4.10.9 PRESSURE ROLLER THERMISTOR .......................................4-78
4.10.10
4.10.11
When installing the fusing fan .............................................................4-80
4.10.12
G188/G189
BEARING GEAR AND IDLE GEAR .......................................4-79
FUSING FAN..........................................................................4-79
PAPER EXIT FAN ..................................................................4-80
iv SM