Ricoh D197 Service Manual page 14

Procedure for the Scanner ................................................................. 4-65
4.8 LASER UNIT ............................................................................................ 4-66
4.8.1 CAUTION DECAL LOCATION ....................................................... 4-66
4.8.2 LASER UNIT ................................................................................... 4-67
Removing the Laser Unit .................................................................... 4-67
Installing a New Laser Unit ................................................................. 4-68
Mainframe Claws................................................................................ 4-68
Laser Unit Claws ................................................................................ 4-69
After Installing the New Laser Unit ..................................................... 4-70
4.8.3 QUENCHING LAMP ....................................................................... 4-70
4.8.4 PCL (PRE CLEANING LIGHT) ....................................................... 4-71
4.9 PCDU ....................................................................................................... 4-72
4.9.1 BEFORE REPLACING A PCU OR DEVELOPMENT UNIT ............ 4-72
4.9.2 PCDU.............................................................................................. 4-72
4.9.3 PCU/DEVELOPMENT UNIT ........................................................... 4-74
Notes When Installing the Face Plates............................................... 4-74
Face plate for front side ...................................................................... 4-75
Face plate for rear side ...................................................................... 4-75
Installing a PCU.................................................................................. 4-75
Installing a Development Unit ............................................................. 4-75
4.9.4 OPC DRUM .................................................................................... 4-77
4.9.5 CHARGE ROLLER, CLEANING ROLLER ...................................... 4-78
4.9.6 PICK-OFF PAWLS.......................................................................... 4-79
4.9.7 CLEANING BLADE ......................................................................... 4-80
4.9.8 DEVELOPER .................................................................................. 4-81
4.9.9 DEVELOPMENT FILTER ............................................................... 4-87
4.9.10 TD SENSOR ............................................................................. 4-88
4.9.11 DEVELOPMENT MIXING AUGER BEARINGS ........................ 4-89
4.9.12 DEVELOPMENT MIXING AUGER (L / R) ................................. 4-91
4.10 WASTE TONER ................................................................................. 4-93
4.10.1 WASTE TONER BOTTLE ......................................................... 4-93
4.10.2 TONER COLLECTION FULL SENSOR .................................... 4-93
4.10.3 RECYCLING SHUTTER SOLENOID ........................................ 4-94
4.10.4 RECYCLING SHUTTER ........................................................... 4-97
4.11 TRANSFER UNIT............................................................................... 4-99
4.11.1 TRANSFER UNIT...................................................................... 4-99
4.11.2 TRANSFER ROLLER UNIT .................................................... 4-101
4.11.3 ID SENSOR ............................................................................ 4-102
Before Replacing the ID Sensor ....................................................... 4-102
D197/D198/D199/D200/D201/D202 x SM