Ricoh D065 Service Manual page 17

4.1.6 CHARGE CORONA ..........................................................................4-2
4.1.7 DEVELOPMENT ...............................................................................4-3
4.1.8 CLEANING ........................................................................................4-3
4.1.9 FUSING UNIT ...................................................................................4-4
4.1.10 PAPER FEED ...............................................................................4-4
4.1.11 USED TONER...............................................................................4-4
4.2 SPECIAL TOOLS AND LUBRICANTS .......................................................4-5
4.2.1 SPECIAL TOOLS ..............................................................................4-5
4.2.2 LUBRICANTS....................................................................................4-5
4.3 OPERATION PANEL AND EXTERNAL COVERS .....................................4-6
4.3.1 OPERATION PANEL.........................................................................4-6
4.3.2 FRONT DOOR ..................................................................................4-6
4.3.3 RIGHT COVERS ...............................................................................4-7
4.3.4 LEFT COVERS..................................................................................4-8
4.3.5 REAR COVERS ................................................................................4-8
4.4 SCANNER ................................................................................................4-10
4.4.1 ADF AND TOP COVERS ................................................................4-10
ADF.....................................................................................................4-10
Top Covers .........................................................................................4-11
4.4.2 EXPOSURE GLASS........................................................................4-11
4.4.3 SCANNER ORIGINAL SIZE SENSORS .........................................4-12
4.4.4 LENS BLOCK ..................................................................................4-13
4.4.5 EXPOSURE LAMP..........................................................................4-13
4.4.6 SIOB................................................................................................4-14
4.4.7 SCANNER MOTOR.........................................................................4-15
4.4.8 SCANNER HP SENSOR.................................................................4-16
4.4.9 SCANNER WIRE REPLACEMENT.................................................4-17
Scanner Wire Removal .......................................................................4-17
Scanner Wire Reinstallation and Scanner Position Adjustment..........4-18
4.5 LASER UNIT ............................................................................................4-20
4.5.1 CAUTION DECALS .........................................................................4-20
4.5.2 LD UNIT, POLYGON MOTOR AND POLYGON MOTOR DRIVE
BOARD.....................................................................................................4-20
SP Adjustments ..................................................................................4-22
4.5.3 LASER SYNCHRONIZATION DETECTOR REPLACEMENT.........4-22
4.5.4 LASER UNIT ALIGNMENT .............................................................4-23
4.6 DRUM UNIT .............................................................................................4-25
4.6.1 DEVELOPMENT UNIT REMOVAL..................................................4-25
Drum Removal ....................................................................................4-25
Drum Re-installation ...........................................................................4-27
Replacement with a Used Development Unit......................................4-27
4.6.2 CHARGE CORONA UNIT ...............................................................4-28
4.6.3 CHARGE CORONA WIRE AND GRID............................................4-28
4.6.4 CHARGE CORONA WIRE CLEANING PADS ................................4-30
4.6.5 OPC DRUM REMOVAL ..................................................................4-30
Dusting the Drum Surface...................................................................4-32
4.6.6 PTL..................................................................................................4-33
4.6.7 QUENCHING LAMP........................................................................4-34
4.6.8 DRUM POTENTIAL SENSOR.........................................................4-34
SM v D062/D062/D065/D066