B047/B048
iv
SM
4.6.9
PAPER FEED
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*
4.6.10
ROLL FEEDER
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*
4.6.11
OTHERS
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*
4.6.12
AC DRIVE BOARD
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4-29
Service Remark for 220 ~ 240 V Version
............................................
4-29
Service Remarks for 120 V Version
....................................................
4-30
REPLACEMENT AND ADJUSTMENT
5.
REPLACEMENT AND ADJUSTMENT
........................................
5-1
5.1
EXTERIOR COVERS
...............................................................................
*
5.1.1
LEFT SIDE COVER REMOVAL
......................................................
*
Left Upper Cover
.................................................................................
*
Left Lower Cover
..................................................................................
*
5.1.2
RIGHT SIDE COVER REMOVAL
....................................................
*
Right Upper Cover
...............................................................................
*
Right Lower Front, Right Lower Middle, and Right Lower
Rear Covers
.........................................................................................
*
5.1.3
REAR COVER REMOVAL
..............................................................
*
Rear Cover
..........................................................................................
*
5.2
OPTICS
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*
5.2.1
ORIGINAL FEED UNIT REMOVAL (A252 ONLY)
...........................
*
5.2.2
EXPOSURE GLASS REMOVAL (A252 ONLY)
...............................
*
5.2.3
EXPOSURE LAMP REMOVAL (A252 ONLY)
.................................
*
5.2.4
FIBER OPTICS ARRAY REMOVAL (A252 ONLY)
..........................
*
5.2.5
LIGHT SENSOR REPLACEMENT (A252 ONLY)
............................
*
5.2.6
SYNCHRO-CUT LENGTH ADJUSTMENT (A252 ONLY)
...............
*
5.3
DEVELOPMENT
......................................................................................
*
5.3.1
DEVELOPMENT UNIT REMOVAL
..................................................
*
5.3.2
DEVELOPER REMOVAL
................................................................
*
5.3.3
TONER DENSITY SENSOR REPLACEMENT
................................
*
5.3.4
PTL REPLACEMENT
......................................................................
*
5.3.5
DEVELOPMENT BIAS VOLTAGE ADJUSTMENT
.........................
*
Bias Voltage for Image Area
................................................................
*
Bias Voltage for Non-image Area
........................................................
*
5.4
DRUM UNIT
..............................................................................................
5-1
5.4.1
DRUM UNIT REMOVAL
.................................................................
*
5.4.2
DRUM REPLACEMENT
...................................................................
5-1
5.4.3
CLEANING BLADE REPLACEMENT
..............................................
*
5.4.4
CHARGE CORONA UNIT REMOVAL
.............................................
*
5.4.5
CHARGE CORONA WIRE REPLACEMENT
..................................
*
5.4.6
PICK-OFF PAWL UNIT REMOVAL
.................................................
*
5.4.7
GRID VOLTAGE ADJUSTMENT
.....................................................
*
5.4.8
DRUM CURRENT ADJUSTMENT
..................................................
*
Charge Current Adjustment
.................................................................
*
Transfer Current Adjustment
................................................................
*
Separation Current Adjustment
............................................................
*