Canon iR8500 - The Vertical Path Roller Fails to Rotate

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-139
4.1.84 The vertical path roller fails to rotate
Belt, Gear, Coupling
1) Is the drive from the pickup motor (M2) transmitted to each verti-
cal path roller through the belt, gear, and coupling?
NO: Mount the belt, gear, and coupling correctly.
Vertical path 1 clutch
2) Execute the following in service mode. Is the sound of the clutch
(CL8) heard?
COPIER>FUNCTION>PART-CHK>CL7
↓↓
↓↓
↓
OK
↓↓
↓↓
↓
COPIER>FUNCTION>PART-CHK>CL-ON
↓↓
↓↓
↓
OK
NO: Check the wiring; if normal, replace the clutch (CL8)
(J511-A3, -A4 on DC controller PCB).
Vertical path 2 clutch
3) Execute the following in service mode. Is the sound of the clutch
(CL9) heard?
COPIER>FUNCTION>PART-CHK>CL9
↓↓
↓↓
↓
OK
↓↓
↓↓
↓
COPIER>FUNCTION>PART-CHK>CL-ON
↓↓
↓↓
↓
OK
NO: Check the wiring; if normal, replace the clutch (CL9)
(J514-A6, -A7 on controller PCB).
Vertical path 3 clutch
4) Execute the following in service mode. Is the sound of the clutch
(CL13) heard?
COPIER>FUNCTION>PART-CHK>CL13
↓↓
↓↓
↓
OK
↓↓
↓↓
↓
COPIER>FUNCTION>PART-CHK>CL-ON
↓↓
↓↓
↓
OK
NO: Check the wiring; if normal, replace the clutch (CL13)
(J515-A3, -A4 on DC controller PCB).