Ricoh B051 Service Manual page 14

1.12.2 INSTALLATION PROCEDURE ....................................................1-42
1.13 500-SHEET FINISHER (B458) ..............................................................1-45
1.13.1 ACCESSORY CHECK..................................................................1-45
1.13.2 INSTALLATION PROCEDURE ....................................................1-46
1.14 PLATEN COVER INSTALLATION ........................................................1-48
1.15 MEMORY ..............................................................................................1-49
1.16 KEY COUNTER INSTALLATION ..........................................................1-51
1.17 ANTI-CONDENSATION HEATER.........................................................1-53
1.18 TRAY HEATER .....................................................................................1-54
1.19 TRAY HEATER (OPTIONAL PAPER TRAY UNIT) ...............................1-55
1.20 TRAY HEATER (OPTIONAL LCT) ........................................................1-57
PREVENTIVE MAINTENANCE
2. PREVENTIVE MAINTENANCE.................................................... 2-1
2.1 MAIN UNIT ................................................................................................2-1
2.1.1 OVERVIEW ......................................................................................2-1
2.1.2 PM TABLE........................................................................................2-2
2.2 OPTIONAL UNIT PM TABLE ....................................................................2-5
REPLACEMENT AND ADJUSTMENT
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 SPECIAL TOOLS ................................................................................3-1
3.2 FILTERS....................................................................................................3-1
3.3 SCANNER UNIT........................................................................................3-2
3.3.1 EXPOSURE GLASS.........................................................................3-2
3.3.2 APS SENSORS ................................................................................3-2
3.3.3 LENS BLOCK ASSEMBLY...............................................................3-3
3.3.4 EXPOSURE LAMP STABILIZER .....................................................3-5
3.3.5 SCANNER LAMP .............................................................................3-5
3.3.6 SCANNER I/O BOARD.....................................................................3-7
3.3.7 SCANNER MOTOR..........................................................................3-7
3.3.8 FRONT SCANNER WIRE ................................................................3-7
3.3.9 REAR SCANNER WIRE.................................................................3-10
3.4 LASER UNIT ...........................................................................................3-12
3.4.1 CAUTION DECAL LOCATION .......................................................3-12
3.4.2 LASER UNIT ..................................................................................3-13
Adjusting for Image Skew ...................................................................3-15
D-Phase Adjustment ...........................................................................3-16
Laser Beam Pitch Adjustment.............................................................3-17
3.4.3 POLYGONAL MIRROR MOTOR AND LSD ...................................3-18
3.5 DEVELOPMENT UNIT ............................................................................3-19
3.6 PHOTOCONDUCTOR UNIT (PCU) ........................................................3-20
3.6.1 PCU ASSEMBLY............................................................................3-20
3.6.2 WASTE TONER BOTTLES ............................................................3-21
3.6.3 CHARGE CORONA UNIT, GRID, WIRE, AND CLEANER.............3-22
B051/B052
CÓPIA NÃO CONTROLADA
ii
CÓPIA NÃO CONTROLADA
SM