Ricoh B064 Service Manual page 16

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
3.6.12 ID SENSOR..................................................................................3-41
3.6.13 DRUM MOTOR.............................................................................3-42
3.6.14 TONER COLLECTION BOTTLE ..................................................3-43
3.6.15 TONER SEPARATION UNIT........................................................3-43
3.6.16 OZONE FILTERS .........................................................................3-44
3.6.17 OPTICS DUST FILTER ................................................................3-44
3.6.18 INTERNAL DUST FILTER............................................................3-44
3.7 DEVELOPMENT UNIT ............................................................................3-45
3.7.1 DEVELOPER REPLACEMENT ......................................................3-45
3.7.2 DEVELOPMENT FILTER ...............................................................3-47
3.7.3 ENTRANCE SEAL AND SIDE SEALS ...........................................3-48
3.7.4 TD SENSOR...................................................................................3-49
3.7.5 TONER END SENSOR ..................................................................3-49
3.7.6 TONER SUPPLY MOTOR..............................................................3-50
3.7.7 DEVELOPMENT MOTOR ..............................................................3-51
3.8 TRANSFER BELT UNIT..........................................................................3-52
3.8.1 TRANSFER BELT UNIT .................................................................3-52
3.8.2 TRANSFER BELT ..........................................................................3-53
3.8.3 TRANSFER ROLLER CLEANING BLADE .....................................3-55
3.8.4 DISCHARGE PLATE ......................................................................3-56
3.8.5 TRANSFER POWER PACK ...........................................................3-57
3.9 FUSING UNIT..........................................................................................3-58
3.9.1 FUSING UNIT.................................................................................3-58
3.9.2 FUSING UNIT THERMISTORS AND THERMOSTATS .................3-59
3.9.3 WEB CLEANING ROLLER.............................................................3-60
Web Unit Disassembly........................................................................3-60
Web Unit Assembly.............................................................................3-61
3.9.4 WEB MOTOR AND WEB END SENSOR.......................................3-62
3.9.5 PRESSURE ROLLER CLEANING UNIT ........................................3-63
3.9.6 FUSING LAMPS, HOT ROLLER, AND PRESSURE ROLLER.......3-64
Important Notes about Fusing Unit Assembly.....................................3-67
3.9.7 PRESSURE ROLLER.....................................................................3-68
B064/B065 iv SM