Ricoh B286 Service Manual page 17

REPLACEMENT AND ADJUSTMENT
3. REPLACEMENT AND ADJUSTMENT ........................................ 3-1
3.1 COMMON PROCEDURES ........................................................................ 3-1
3.1.1 BEFORE WORKING ON THE MAIN MACHINE............................... 3-1
3.1.2 SIDE COVERS ................................................................................. 3-2
3.1.3 REAR COVER .................................................................................. 3-3
3.1.4 PAPER EXIT UNIT ........................................................................... 3-3
3.1.5 UNLOCKING, OPENING THE ORIGINAL UNIT............................... 3-4
3.1.6 REMOVING THE ORIGINAL FEED UNIT ........................................ 3-5
3.1.7 RAISING AND LOCKING THE SCANNER UNIT.............................. 3-6
3.1.8 TONER HOPPER COVER................................................................ 3-7
3.1.9 IDLE REGISTRATION ROLLER PANEL .......................................... 3-7
3.1.10 MANUAL FEED TABLE, ORIGINAL FEED SENSOR COVER ... 3-8
3.1.11 DRAWER FRONT COVER ......................................................... 3-9
3.2 SCANNER ............................................................................................... 3-10
3.2.1 ORIGINAL WIDTH SENSORS, ORIGINAL SET SENSOR, SCANNER
SWITCH................................................................................................... 3-10
3.2.2 ORIGINAL FEED UNIT ROLLERS ................................................. 3-11
3.2.3 EXPOSURE GLASS ....................................................................... 3-12
3.2.4 CIS.................................................................................................. 3-13
3.2.5 SMDB, VDB .................................................................................... 3-14
3.2.6 SIB, CGB POWER PACK ............................................................... 3-15
3.3 AROUND THE DRUM.............................................................................. 3-16
3.3.1 CHARGE CORONA WIRE, GRID WIRE, WIRE CLEANER ........... 3-16
3.3.2 QUENCHING LAMPS ..................................................................... 3-17
3.3.3 LPH (LED PRINT HEAD) ................................................................ 3-18
3.3.4 TRANSFER CORONA, SEPARATION CORONA WIRES.............. 3-19
3.4 DEVELOPMENT ...................................................................................... 3-21
3.4.1 DEVELOPMENT UNIT ................................................................... 3-21
3.4.2 DEVELOPER .................................................................................. 3-22
3.4.3 PAPER SET SENSOR, REGISTRATION SENSOR ....................... 3-24
3.4.4 TONER SUPPLY CLUTCH............................................................. 3-25
3.4.5 DEVELOPMENT FILTER................................................................ 3-25
SM v B286/B289