COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-137
4.1.83 Pickup fails (multifeeder)
Wiring
1) Is the connector (of the machine) of the multifeeder connected cor-
rectly?
NO: Connect the connector correctly.
----------
2) Is the leading edge of the copy paper as far as the registration
roller?
YES: See “4.1.85 The registration roller fails to rotate.”
Pickup roller., Pickup/feeding roller, Separation roller
3) Are the pickup roller, pickup/feeding roller, and separation roller
mounted correctly?
NO: Mount the rollers correctly.
Manual feed paper sensor (PS17)
4) Execute the following in service mode. When paper is placed in the
multifeeder assembly, does bit 12 change from 0 to 1?
COPIER>I/O>DC-CON>P004
NO: Check the wiring and the sensor flag; if normal, replace the sensor
(PS17) (J510-B7, B8, B9 on DC controller PCB).
Manual feed tray pickup clutch (CL7)
5) Execute the following in service mode. Is the sound of the clutch
(CL7) heard?
COPIER>FUNCTION>PART-CHK>CL1
↓↓
↓↓
↓
OK
↓↓
↓↓
↓
COPIER>FUNCTION>PART-CHK>CL-ON
↓↓
↓↓
↓
OK
NO: Check the wiring; if normal, replace the clutch (CL7) (J513-A8,
A9 on DC controller PCB).
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