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3.3.
Replacing the maintenance parts ...................................................................................................3 − 5
3.3.1.
Fuser Unit ....................................................................................................................3 − 5
3.3.2.
Pick up / Forward roller ..................................................................................................3 − 6
3.3.3.
Transfer roller...............................................................................................................3 − 6
3.4.
Replacing the main svc parts ........................................................................................................3 − 7
3.4.1.
Cover ..........................................................................................................................3 − 7
3.4.2.
Main Board ..................................................................................................................3 − 9
3.4.3.
Joint PBA ....................................................................................................................3 − 9
3.4.4.
SMPS and FDB(Fuser Drive board) ................................................................................ 3 − 10
3.4.5.
OPC and Main motor ................................................................................................... 3 − 11
3.4.6.
Main Drive unit........................................................................................................... 3 − 11
3.4.7.
Duplex and Pick up clutch............................................................................................. 3 − 12
3.4.8.
HVPS Board............................................................................................................... 3 − 12
3.4.9.
Exit Unit.................................................................................................................... 3 − 13
3.4.10. LSU (Laser Scanning Unit) ........................................................................................... 3 − 14
3.4.11. Eraser Lamp PBA........................................................................................................ 3 − 14
3.4.12. Cover Open PBA......................................................................................................... 3 − 15
3.4.13. Disassembling Pick up assy ........................................................................................... 3 − 15
3.4.13.1. Left Cover ................................................................................................... 3 − 15
3.4.13.2. Cassette Guide L ........................................................................................... 3 − 16
3.4.13.3. Right Cover ................................................................................................. 3 − 16
3.4.13.4. Cover-SMPS and SMPS ................................................................................. 3 − 18
3.4.13.5. Drive Assy................................................................................................... 3 − 18
3.4.13.6. Pick up and Duplex Clutch.............................................................................. 3 − 18
3.4.13.7. Screw ......................................................................................................... 3 − 19
3.4.13.8. Bracket Cross Bar and Pick up Harness ............................................................. 3 − 19
3.4.13.9. Pick up assy ................................................................................................. 3 − 20
3.5.
Finisher ................................................................................................................................. 3 − 21
3.5.1.
Cover ........................................................................................................................ 3 − 21
3.5.2.
Stapler Ass'y .............................................................................................................. 3 − 22
3.5.3.
Safety sensor .............................................................................................................. 3 − 22
3.5.4.
Tamper Ass'y ............................................................................................................. 3 − 23
3.5.5.
Finisher main board ..................................................................................................... 3 − 25
3.5.6.
Diverter Assy ............................................................................................................. 3 − 25
3.5.7.
Stacker Motor ............................................................................................................. 3 − 26
3.6.
Mail box ................................................................................................................................ 3 − 27
4.
Alignment and Troubleshooting .............................................................................................................4 − 1
4.1.
Alignment and Adjustment ..........................................................................................................4 − 1
4.1.1.
Control Panel................................................................................................................4 − 1
4.1.2.
Understanding the status LED..........................................................................................4 − 3
iii
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