Ricoh B064 - Page 17

SM v B064Series/B140 Series/G126
3.2 SPECIAL TOOLS AND LUBRICANTS................................................ 3-5
3.2.1 SPECIAL TOOLS............................................................................. 3-5
3.2.2 LUBRICANTS .................................................................................. 3-5
3.3 OPERATION PANEL AND EXTERNAL COVERS.................................... 3-6
3.3.1 OPERATION PANEL....................................................................... 3-6
3.3.2 FRONT DOOR................................................................................. 3-6
3.3.3 RIGHT COVERS.............................................................................. 3-7
3.3.4 LEFT COVERS................................................................................ 3-8
3.3.5 REAR COVERS............................................................................... 3-9
3.4 SCANNER .............................................................................................. 3-10
3.4.1 ADF AND TOP COVERS............................................................... 3-10
ADF.................................................................................................... 3-10
Top Covers......................................................................................... 3-11
3.4.2 EXPOSURE GLASS...................................................................... 3-12
3.4.3 SCANNER ORIGINAL SIZE SENSORS........................................ 3-13
3.4.4 LENS BLOCK ................................................................................ 3-14
3.4.5 EXPOSURE LAMP ........................................................................ 3-15
3.4.6 LAMP REGULATOR...................................................................... 3-16
3.4.7 SCANNER MOTOR DRIVE BOARD (SDRB) ................................ 3-17
3.4.8 SCANNER MOTOR....................................................................... 3-18
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