Ricoh MT-C1 Service Manual page 11

3.4.9 SCANNER HP SENSOR ................................................................3-19
3.4.10 SCANNER WIRE REPLACEMENT ..............................................3-20
Preparation for Removal .....................................................................3-20
Wire Removal: Back ...........................................................................3-21
Wire Removal: Front ...........................................................................3-22
Attaching the New Wire ......................................................................3-23
3.4.11 SCANNER HEATER.....................................................................3-25
3.5 LASER UNIT ...........................................................................................3-26
3.5.1 CAUTION DECALS ........................................................................3-26
3.5.2 LD UNIT AND POLYGON MOTOR ................................................3-27
3.5.3 LASER SYNCHRONIZATION DETECTOR REPLACEMENT........3-29
3.5.4 LASER UNIT ALIGNMENT.............................................................3-30
3.6 DRUM UNIT ............................................................................................3-32
3.6.1 DEVELOPMENT UNIT REMOVAL.................................................3-32
Removal..............................................................................................3-32
Re-installation .....................................................................................3-33
Replacement with a used Development Unit ......................................3-33
3.6.2 CHARGE CORONA UNIT ..............................................................3-34
3.6.3 CHARGE CORONA WIRE AND GRID...........................................3-35
3.6.4 CHARGE CORONA WIRE CLEANING PADS ...............................3-36
3.6.5 OPC DRUM REMOVAL..................................................................3-37
Dusting the Drum Surface...................................................................3-38
3.6.6 PTL (B140 SERIES ONLY) ............................................................3-39
3.6.7 QUENCHING LAMP .......................................................................3-40
3.6.8 DRUM POTENTIAL SENSOR........................................................3-40
3.6.9 CLEANING FILTER ........................................................................3-41
3.6.10 CLEANING BLADE.......................................................................3-41
3.6.11 CLEANING BRUSH......................................................................3-42
3.6.12 PICK-OFF PAWLS .......................................................................3-43
3.6.13 ID SENSOR..................................................................................3-43
3.6.14 DRUM MOTOR.............................................................................3-44
3.6.15 TONER COLLECTION BOTTLE ..................................................3-45
3.6.16 TONER SEPARATION UNIT........................................................3-45
3.6.17 OZONE FILTERS .........................................................................3-46
3.6.18 OPTICS DUST FILTER ................................................................3-46
3.6.19 INTERNAL DUST FILTER............................................................3-46
3.7 DEVELOPMENT UNIT ............................................................................3-47
3.7.1 DEVELOPER REPLACEMENT ......................................................3-47
3.7.2 DEVELOPMENT FILTER ...............................................................3-49
3.7.3 ENTRANCE SEAL AND SIDE SEALS ...........................................3-50
3.7.4 TD SENSOR...................................................................................3-51
3.7.5 TONER END SENSOR ..................................................................3-51
3.7.6 TONER SUPPLY MOTOR..............................................................3-52
3.7.7 DEVELOPMENT MOTOR ..............................................................3-53
3.8 TRANSFER BELT UNIT ..........................................................................3-54
3.8.1 TRANSFER BELT UNIT .................................................................3-54
3.8.2 TRANSFER BELT ..........................................................................3-55
3.8.3 TRANSFER ROLLER CLEANING BLADE .....................................3-57
3.8.4 DISCHARGE PLATE ......................................................................3-58
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