Ricoh Aficio 480W Dolphin-C2 Service Manual page 16

Seal Check And Removal ...................................................................1-50
Installation Procedure .........................................................................1-51
1.6.5 KEY COUNTER..............................................................................1-53
2. PREVENTIVE MAINTENANCE................................................... 2-1
2.1 PM TABLE.................................................................................................2-1
2.1.1 COPIER B188 ..................................................................................2-1
2.1.2 ROLL FEEDER (B758) .....................................................................2-3
2.1.3 PAPER CASSETTE (B759)..............................................................2-3
2.2 LUBRICATION POINTS ............................................................................2-4
2.2.1 FUSING SECTION ...........................................................................2-4
2.2.2 DEVELOPMENT SECTION..............................................................2-5
3. REPLACEMENT AND ADJUSTMENT........................................ 3-1
3.1 OPENING AND CLOSING THE MACHINE...............................................3-1
3.2 EXTERNAL COVERS ...............................................................................3-2
3.2.1 FRONT VIEW ...................................................................................3-2
3.2.2 REAR VIEW .....................................................................................3-3
3.3 SCANNER .................................................................................................3-4
3.3.1 OPERATION PANEL........................................................................3-4
3.3.2 ORIGINAL SIZE SENSORS, ORIGINAL SET SENSOR,
ORIGINAL REGISTRATION SENSOR.............................................3-6
3.3.3 WHITE PLATEN ROLLER................................................................3-7
3.3.4 ORIGINAL UPPER TRANSPORT UNIT AND EXIT SENSOR .......3-11
3.3.5 ORIGINAL EXIT SENSOR, EXIT ROLLER THERMISTOR............3-12
3.3.6 ORIGINAL TRANSPORT ROLLER ................................................3-13
3.3.7 CIS (CONTACT IMAGE SENSOR) ................................................3-13
3.3.8 EXPOSURE GLASS.......................................................................3-14
3.4 AROUND THE DRUM .............................................................................3-15
3.4.1 VDB (VIDEO DRIVE BOARD) ........................................................3-15
3.4.2 LPH (LED PRINT HEAD)................................................................3-16
3.4.3 CHARGE CORONA WIRE, GRID WIRE, WIRE CLEANER...........3-17
3.4.4 QUENCHING LAMPS.....................................................................3-19
3.5 DRUM AND DEVELOPMENT UNIT........................................................3-20
3.5.1 BY-PASS FEED SENSOR, REGISTRATION SENSOR.................3-20
3.5.2 DEVELOPMENT UNIT ...................................................................3-22
3.5.3 DEVELOPER..................................................................................3-23
3.5.4 TONER SUPPLY CLUTCH ............................................................3-24
3.5.5 DRUM DRIVE MOTOR...................................................................3-24
3.5.6 DRUM UNIT, ID SENSOR, AND CLEANING BLADE ....................3-25
3.6 PAPER FEED..........................................................................................3-28
3.6.1 CUTTER UNIT................................................................................3-28
3.6.2 CUTTER MOTOR, CUTTER HP SWITCHES ................................3-29
3.6.3 CUTTING SENSOR AND FEED EXIT ROLLER ............................3-30
3.6.4 ROLL TRAY....................................................................................3-31
3.6.5 PAPER FEED DRIVE MOTOR.......................................................3-33
3.6.6 1ST/3RD FEED ROLLER AND CLUTCH .......................................3-34
3.6.7 2ND/4TH FEED ROLLER AND CLUTCH.......................................3-35
3.6.8 REGISTRATION MOTOR ..............................................................3-35
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