Ricoh A-C2 - Page 5

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1.16 TRAY HEATER (OPTIONAL PAPER TRAY UNIT)...............................1-56
2 PREVENTIVE MAINTENANCE SCHEDULE ............................... 2-1
2.1 PM TABLE.................................................................................................2-1
3 REPLACEMENT AND ADJUSTMENT......................................... 3-1
3.1 GENERAL CAUTIONS..............................................................................3-1
3.1.1 LASER UNIT ....................................................................................3-1
3.1.2 USED TONER..................................................................................3-1
3.2 SPECIAL TOOLS AND LUBRICANTS......................................................3-2
3.2.1 SPECIAL TOOLS .............................................................................3-2
3.2.2 LUBRICANTS...................................................................................3-2
3.2.3 SYMBOLS USED IN TEXT...............................................................3-2
3.3 FRONT DOOR ..........................................................................................3-3
3.4 DUPLEX UNIT...........................................................................................3-3
3.5 UPPER RIGHT COVER ............................................................................3-4
3.6 BY-PASS TRAY ........................................................................................3-5
3.7 REAR COVERS ........................................................................................3-6
3.7.1 REAR UPPER COVER.....................................................................3-6
3.7.2 REAR LOWER COVER....................................................................3-6
3.8 LEFT COVERS..........................................................................................3-7
3.8.1 LEFT UPPER COVER......................................................................3-7
3.9 SCANNER UNIT........................................................................................3-8
3.9.1 ARDF................................................................................................3-8
3.9.2 EXPOSURE GLASS.........................................................................3-9
3.9.3 SCANNER EXTERIOR PANELS/OPERATION PANEL.................3-10
3.9.4 LENS BLOCK/SBU ASSEMBLY ....................................................3-11
3.9.5 ORIGINAL SIZE SENSORS...........................................................3-12
3.9.6 EXPOSURE LAMP.........................................................................3-13
3.9.7 SCANNER HP SENSOR/PLATEN COVER SENSOR ...................3-14
3.9.8 SCANNER MOTOR........................................................................3-15
3.9.9 LAMP STABILIZER AND SCANNER MOTOR DRIVE BOARD .....3-16
3.9.10 SCANNER WIRE..........................................................................3-17
3.10 LASER UNIT .........................................................................................3-21
3.10.1 CAUTION DECAL LOCATIONS...................................................3-21
3.10.2 LASER UNIT ................................................................................3-22
3.10.3 POLYGON MIRROR MOTOR......................................................3-23
3.10.4 LASER SYNCHRONIZATION DETECTOR..................................3-24
3.10.5 LD UNIT........................................................................................3-24
Laser beam pitch adjustment..............................................................3-25
3.11 PHOTOCONDUCTOR UNIT (PCU) ......................................................3-26
3.11.1 PCU..............................................................................................3-26
3.11.2 DRUM...........................................................................................3-27
3.11.3 PICK-OFF PAWLS .......................................................................3-28
3.11.4 CHARGE ROLLER/CHARGE ROLLER CLEANING PAD............3-29
3.11.5 DRUM CLEANING BLADE...........................................................3-30
3.11.6 ID SENSOR..................................................................................3-31
3.12 DEVELOPMENT ...................................................................................3-32
3.12.1 DEVELOPMENT UNIT .................................................................3-32