E072; E073 - Canon CLC5000 Service Manual

CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

4.1.20 E072

Transfer belt cleaning web rotation sensor (PS10)
1) Is the sensor normal? (Check the instructions on how to check
NO:
Operation (faulty)
2) Turn the web drive shaft by a finger. Does it turn smoothly?
NO:
Transfer belt cleaning web motor (M12)
DC controller PCB
3) Turn OFF and ON the power switch; then, select two-sided copying
YES: Check the wiring from the DC controller PCB to the transfer belt
NO:

4.1.21 E073

Transfer frame drawer connector
DC controller PCB
1) Is the transfer frame drawer connector soiled with toner or dam-
YES: Clean the drawer connector.
NO:
5-128
photointerrupters.)
Replace the sensor.
Remove the cause of poor rotation.
mode, and press the Start key.
Does the voltage at J2218A-4 on the DC controller PCB change
from 0 V to 24 V?
cleaning web motor; if normal, replace the transfer belt cleaning
web motor.
Replace the DC controller PCB.
aged?
Check the wiring from J2218 on the DC controller PCB to the
transfer frame drawer connector J6122; if normal, replace the DC
controller PCB.
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001