Samsung MultiXpress K4 Series Service Manual page 4

Contents
2.12.7. Fuser PBA ................................................................................................................. 2 − 91
2.12.8. Waste Sensor PBA....................................................................................................... 2 − 92
2.12.9. CRUM PBA ............................................................................................................... 2 − 92
2.12.10. Toner CRUM Joint PBA .............................................................................................. 2 − 92
2.12.11. Paper Size sensor PBA ................................................................................................. 2 − 93
2.12.12. CTD PBA .................................................................................................................. 2 − 93
2.12.13. OPE Unit ................................................................................................................... 2 − 94
2.13. Cassette Heater........................................................................................................................ 2 − 95
2.14. DCF Unit ............................................................................................................................... 2 − 96
2.15. Inner Finisher........................................................................................................................ 2 − 102
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. Precautions when handling PBA.......................................................................................3 − 1
3.1.3. Releasing Plastic Latches ................................................................................................3 − 2
3.2. Maintenance .............................................................................................................................3 − 3
3.2.1. Machine Cleaning for maintenance ...................................................................................3 − 3
3.2.1.1.
3.2.1.2.
3.2.1.3.
3.2.2. Replacing the maintenance part ........................................................................................3 − 7
3.2.2.1.
3.2.2.2.
3.2.2.3.
3.2.2.4.
3.2.2.5.
3.2.2.6.
3.2.2.7.
3.2.2.8.
3.2.2.9.
3.2.2.10. RADF reverse roller Assy ............................................................................... 3 − 20
3.3. Replacing the main SVC part ..................................................................................................... 3 − 21
3.3.1. Left cover .................................................................................................................. 3 − 21
3.3.2. Rear Cover................................................................................................................. 3 − 21
3.3.3. LSU.......................................................................................................................... 3 − 22
3.3.4. Temperature Sensor ..................................................................................................... 3 − 22
3.3.5. HVPS board ............................................................................................................... 3 − 23
3.3.6. OPE Unit ................................................................................................................... 3 − 24
3.3.7. Main board................................................................................................................. 3 − 26
3.3.8. Deve Fan ................................................................................................................... 3 − 26
iii
Cleaning the scan glass.....................................................................................3 − 3
Cleaning the DSDF white bar_CIS .....................................................................3 − 4
Cleaning the paper dust stick .............................................................................3 − 5
Drum Unit .....................................................................................................3 − 7
Development(Deve) Unit ..................................................................................3 − 9
Fuser Unit.................................................................................................... 3 − 13
Transfer roller............................................................................................... 3 − 14
Pick Up_Reverse_Forward Roller .................................................................... 3 − 14
MP Pick Up_Reverse_Forward roller ................................................................ 3 − 15
DSDF Pick-up roller Assy............................................................................... 3 − 16
DSDF reverse roller....................................................................................... 3 − 17
RADF pick up roller Assy............................................................................... 3 − 19
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