Canon CLC5000 Service Manual page 474

b. E020–XX60, XX70
Photosensitive drum
1) Is the photosensitive drum soiled?
YES: Replace the cleaning blade.
SALT sensor
2) Clean the window of the SALT sensor. Is the problem corrected?
YES: End.
NO:
c. E020–XX80, XX81, XX82, XX85, XX86, XX87, XX8F, XXC0, XXC1, XXC2,
XXC5, XXC67, XXC7
Backup data
1) 'FUNC > INSTALL' in service mode, is the value on the 3rd, 4th
NO:
DC controller PCB
2) Replace the DC controller PCB. Is the problem corrected?
YES: End.
d. E020–XX90, XX91
SALT sensor (dirt)
1) Is the window of the SALT sensor soiled with toner?
YES: Clean it.
SALT sensor shutter
Shutter open/close solenoid
2) Is the opening/closing operation of the SALT sensor shutter nor-
NO:
YES: Check the wiring from the DC controller 2 to the solenoid; if nor-
COPYRIGHT © 2001 CANON INC.
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Be sure to clean the SALT sensor as well.
Check the wiring from the DC controller PCB to the SALT sensor;
if normal, replace the SALT sensor.
page the same as that indicated on the service label?
Enter the value of 'DC-CON' under 'FUNC' in service mode.
Perform the steps indicated for replacing the DC controller PCB.
mal?
Check the shutter for deformation.
Clean the inside by referring to 3. "Disassembling and Cleaning
the Inside of the SALT Sensor" under E. (SALT Sensor" in Chap-
ter 2 "Mechanical System."
mal, replace the solenoid.
2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
5-117