Samsung SCX-340x series Service Manual page 3

2.2.5.2.
2.2.5.3.
2.2.5.4.
2.2.5.5.
2.2.5.6.
2.2.6. Engine F/W Contol Algorithm ....................................................................................... 2 − 35
2.2.6.1.
2.2.6.2.
2.2.6.3.
2.2.6.4.
2.2.7. Software Descriptions .................................................................................................. 2 − 37
2.2.7.1.
2.2.7.2.
2.2.7.3.
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. Right and Left cover .................................................................................................... 3 − 4
3.3.2. Scanner Unit............................................................................................................... 3 − 5
3.3.3. ADF Unit................................................................................................................... 3 − 6
3.3.4. CIS Unit .................................................................................................................... 3 − 7
3.3.5. OPE Unit ................................................................................................................... 3 − 8
3.3.6. Front Cover ................................................................................................................ 3 − 9
3.3.7. Middle Cover ............................................................................................................. 3 − 10
3.3.8. Rear Cover................................................................................................................. 3 − 11
3.3.9. Main board................................................................................................................. 3 − 11
3.3.10. WLAN board.............................................................................................................. 3 − 12
3.3.11. Fax board................................................................................................................... 3 − 12
3.3.12. SMPS/HVPS board...................................................................................................... 3 − 13
3.3.13. Fuser Unit .................................................................................................................. 3 − 14
3.3.14. Drive Unit.................................................................................................................. 3 − 14
3.3.15. LSU.......................................................................................................................... 3 − 15
3.3.16. Feed Sensor PBA ........................................................................................................ 3 − 16
3.3.17. Pick up roller .............................................................................................................. 3 − 16
3.3.18. Motor........................................................................................................................ 3 − 17
3.3.19. Transfer roller............................................................................................................. 3 − 18
Copyright© 1995-2011 SAMSUNG. All rights reserved.
OPE board ................................................................................................... 2 − 28
Fax board .................................................................................................... 2 − 30
Wireless LAN board (wireless model only) ........................................................ 2 − 30
SMPS/HVPS board ....................................................................................... 2 − 31
Electrical Parts Location ................................................................................. 2 − 33
Feeding ....................................................................................................... 2 − 35
Transfer....................................................................................................... 2 − 35
Fusing......................................................................................................... 2 − 36
LSU............................................................................................................ 2 − 36
Software system overview .............................................................................. 2 − 37
Architecture ................................................................................................. 2 − 37
Data and Control Flow ................................................................................... 2 − 38
Contents
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