Sharp AR-650 Service Manual download pdf (Page 6)

CONTENTS III

8. PRINTING .............................................................................................................................. 8-1

8.1 Function Outline ..................................................................................................................... 8-1

8.2 Structure ................................................................................................................................ 8-3

8.3 Laser Diode ............................................................................................................................ 8-8

8.4 Disassembly and Replacement.............................................................................................. 8-9

9. PAPER FEED SYSTEM ......................................................................................................... 9-1

9.1 General .................................................................................................................................. 9-1

9.1.1 Functions .................................................................................................................... 9-1

9.1.2 Motor drive circuit ....................................................................................................... 9-2

9.1.3 Detection of the remaining amount of paper............................................................... 9-4

9.2 Aligning Section ..................................................................................................................... 9-5

9.2.1 Introduction ................................................................................................................. 9-5

9.2.2 Configuration and drive system .................................................................................. 9-5

9.2.3 Disassembly and replacement.................................................................................... 9-6

9.3 Large Capacity Feeder (LCF) ................................................................................................ 9-10

9.3.1 Introduction ................................................................................................................. 9-10

9.3.2 Construction and drive mechanism ............................................................................ 9-12

9.3.3 Description of operation .............................................................................................. 9-14

9.3.4 Disassembly and replacement.................................................................................... 9-19

9.4 Paper Feed Pedestal (PFP) ................................................................................................... 9-29

9.4.1 Introduction ................................................................................................................. 9-29

9.4.2 Component names ..................................................................................................... 9-30

9.4.3 General operation ....................................................................................................... 9-31

9.4.4 Configuration and drive system .................................................................................. 9-42

9.4.5 Explanation of operation ............................................................................................. 9-43

9.4.6 Disassembly and replacement.................................................................................... 9-49

10. DRUM-RELATED SECTION ................................................................................................. 10-1

10.1 Construction ........................................................................................................................... 10-1

10.2 Functions ............................................................................................................................... 10-2

10.3 Disassembly and Replacement.............................................................................................. 10-3

11. TRANSFER/TRANSPORT UNIT ........................................................................................... 11-1

11.1 Construction ........................................................................................................................... 11-1

11.2 Description of Operation ........................................................................................................ 11-2

11.3 Functions ............................................................................................................................... 11-3

11.4 Disassembly and Replacement.............................................................................................. 11-5

12. DEVELOPER UNIT ............................................................................................................... 12-1

12.1 General Description ............................................................................................................... 12-1

12.2 Construction ........................................................................................................................... 12-2

12.2.1 Developer unit ............................................................................................................. 12-2

12.2.2 Toner hopper unit ........................................................................................................ 12-4

12.3 Developer Unit Drive .............................................................................................................. 12-5

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Sharp AR-650 Service Manual Page 6