Ricoh B064 Service Manual page 4

3.1.10 PAPER FEED.................................................................................3-4
3.1.11 USED TONER ................................................................................3-4
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
3.6.6 QUENCHING LAMP .......................................................................3-38
3.6.7 DRUM POTENTIAL SENSOR........................................................3-38
3.6.8 CLEANING FILTER ........................................................................3-39
3.6.9 CLEANING BLADE.........................................................................3-39
3.6.10 CLEANING BRUSH......................................................................3-40
3.6.11 PICK-OFF PAWLS .......................................................................3-41
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