Contents
2.2.5.3.
Fax board .................................................................................................... 2 − 25
2.2.5.4.
SMPS/HVPS board ....................................................................................... 2 − 26
2.2.5.5.
Electrical Parts Location ................................................................................. 2 − 28
2.2.6.
Engine F/W Contol Algorithm ....................................................................................... 2 − 30
2.2.6.1.
Feeding ....................................................................................................... 2 − 30
2.2.6.2.
Transfer....................................................................................................... 2 − 30
2.2.6.3.
Fusing......................................................................................................... 2 − 31
2.2.6.4.
LSU............................................................................................................ 2 − 31
2.2.7.
Software Descriptions .................................................................................................. 2 − 32
2.2.7.1.
Software system overview .............................................................................. 2 − 32
2.2.7.2.
Architecture ................................................................................................. 2 − 32
3.
Disassembly and Reassembly .............................................................................................................. 3 − 1
3.1.
Precautions when replacing parts ................................................................................................ 3 − 1
3.1.1.
Precautions when assembling and disassembling ............................................................... 3 − 1
3.1.2.
Preautions when handling PBA ...................................................................................... 3 − 1
3.1.3.
Releasing Plastic Latches .............................................................................................. 3 − 2
3.2.
Screws used in the printer.......................................................................................................... 3 − 3
3.3.
Replacing the Main SVC parts ................................................................................................... 3 − 4
3.3.1.
ADF Frame ................................................................................................................ 3 − 4
3.3.2.
Stacker ...................................................................................................................... 3 − 6
3.3.3.
White roller ................................................................................................................ 3 − 6
3.3.4.
OPE board ................................................................................................................. 3 − 7
3.3.5.
ADF roller ................................................................................................................. 3 − 8
3.3.6.
CIS unit ..................................................................................................................... 3 − 9
3.3.7.
Main board................................................................................................................. 3 − 9
3.3.8.
Fax board................................................................................................................... 3 − 10
3.3.9.
Left Cover.................................................................................................................. 3 − 10
3.3.10.
Front cover................................................................................................................. 3 − 11
3.3.11.
Middle cover .............................................................................................................. 3 − 12
3.3.12.
Rear cover.................................................................................................................. 3 − 13
3.3.13.
SMPS/HVPS board...................................................................................................... 3 − 13
3.3.14.
Fuser unit................................................................................................................... 3 − 14
3.3.15.
Drive Unit.................................................................................................................. 3 − 14
3.3.16.
LSU.......................................................................................................................... 3 − 15
3.3.17.
Feed Sensor PBA ........................................................................................................ 3 − 16
3.3.18.
Pick up roller .............................................................................................................. 3 − 16
3.3.19.
Motor........................................................................................................................ 3 − 17
3.3.20.
Transfer roller ............................................................................................................. 3 − 18
4.
Alignment and Troubleshooting ........................................................................................................... 4 − 1
4.1.
Alignment and Adjustments....................................................................................................... 4 − 1
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