Ricoh B234 - Page 20

B234/B235/B236/D101/D102/D103 viii SM
3.11 FUSING UNIT...................................................................................3-120
3.11.1 REMOVING THE FUSING UNIT .............................................3-120
3.11.2 REINSTALLING THE FUSING UNIT.......................................3-123
3.11.3 FUSING UNIT COVERS..........................................................3-124
3.11.4 FUSING CLEANING UNIT.......................................................3-125
Disassembling the Fusing Cleaning Unit ..........................................3-125
Fabric Pressure Roller ......................................................................3-127
Reassembling the Fusing Cleaning Unit...........................................3-128
3.11.5 HOT ROLLER UNIT.................................................................3-130
3.11.6 HOT ROLLER..........................................................................3-132
Removing the Fusing Lamps ............................................................3-132
Disassembling the Hot Roller............................................................3-134
Re-installing the Fusing Lamps.........................................................3-135
3.11.7 PRESSURE ROLLER..............................................................3-137
3.11.8 CLEANING ROLLER: PRESSURE ROLLER ..........................3-138
3.11.9 HOT ROLLER STRIPPERS.....................................................3-139
3.11.10 PRESSURE ROLLER STRIPPER .......................................3-140
3.11.11 FUSING EXIT SENSOR.......................................................3-141
3.11.12 FUSING UNIT THERMOSTATS, THERMISTOR.................3-142
3.11.13 FUSING PRESSURE ADJUSTMENT..................................3-144
3.11.14 JOB TIME SENSOR.............................................................3-145
3.12 DUPLEX UNIT..................................................................................3-146
3.12.1 DUPLEX UNIT .........................................................................3-146
3.12.2 DUPLEX UNIT INNER COVER ...............................................3-147
3.12.3 DUPLEX INVERTER MOTOR .................................................3-148
3.12.4 DUPLEX SWITCHBACK AND TRANSPORT MOTORS .........3-149
3.12.5 DUPLEX ENTRANCE GUIDE UNIT ........................................3-150
3.12.6 DUPLEX ENTRANCE SENSOR, INVERTER SENSOR..........3-151
3.12.7 DUPLEX TRANSPORT SENSORS 1, 2, 3..............................3-152
3.12.8 INVERTER RELAY SENSOR..................................................3-153
3.13 TONER BANK ..................................................................................3-154
3.13.1 TONER COLLECTION BOTTLE..............................................3-154
3.13.2 TONER BANK UNIT ................................................................3-155
After Re-installing the Toner Bank Unit.............................................3-159
3.13.3 ACCESS TO INSIDE THE TONER BANK...............................3-160
3.14 BOARDS...........................................................................................3-161
3.14.1 MCU.........................................................................................3-161
3.14.2 OPU.........................................................................................3-162
3.14.3 BCU-IOB..................................................................................3-163
3.14.4 BCU-IOB UNIT.........................................................................3-164
3.14.5 PSU-E (ENGINE): A, B............................................................3-165
3.14.6 PPG, CGB POWER PACKS....................................................3-166
3.14.7 AC DRIVE BOARD ..................................................................3-167
3.15 CONTROLLER BOARDS, HDD .......................................................3-168
3.15.1 CONTROLLER BOX COVER ..................................................3-168
3.15.2 CONTROLLER BOARD, NVRAM............................................3-169
3.15.3 INTERFACE BOARD...............................................................3-170
3.15.4 IPU...........................................................................................3-171
3.15.5 SD CARD UNIT .......................................................................3-172