Canon iR8500 Service Manual page 541

CHAPTER 6 TROUBLESHOOTING
Manual tray feeding clutch (CL18)
6) Execute the following in service mode. Is the sound of the clutch
NO:
Multifeeder pickup latch solenoid (SL6)
7) Execute the following in service mode. Does the multifeeder pickup
NO:
DC controller PCB
8) Try replacing the DC controller PCB. Is the problem corrected?
YES: End.
6-138
(CL18) heard?
COPIER>FUNCTION>PART-CHK>CL16
↓ ↓ ↓ ↓ ↓
OK
↓ ↓ ↓ ↓ ↓
COPIER>FUNCTION>PART-CHK>CL-ON
↓ ↓ ↓ ↓ ↓
OK
Check the wiring; if normal, replace the clutch (CL18)
(J513-A6, -A7 on DC controller PCB).
roller move up/down?
COPIER>FUNCTION>PART-CHK>SL5 (up)
COPIER>FUNCTION>PART-CHK>SL6 (down)
↓ ↓ ↓ ↓ ↓
OK
↓ ↓ ↓ ↓ ↓
COPIER>FUNCTION>PART-CHK>SL-ON
↓ ↓ ↓ ↓ ↓
OK
Check the wiring and the link; if normal, replace the solenoid
(SL6) (J510-10, -11, -12 on controller PCB).
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001