Technical information

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
5-120
4.1.12 E023
1) Check the detail code of E023 using ‘DISPLAY > JAM/ERR’ in ser-
vice mode.
Developing assembly
2) Remove the developing assembly for which ‘E023’ is indicated.
Turn the cylinder gear in its normal direction (Counter clockwise).
Does it turn smoothly?
NO: Check the inside of the developing assembly for foreign matter.
Check the drive system for damage to gear.
Developing motor drive system
3) Do the belt and the pulley rotate smoothly?
NO: Check the gears of the drive system for damage and fault.
Developing motor
for Y (M18C)
for M (M18M)
for C (M18Y)
for Bk (M18K)
DC controller PCB
4) Set the meter to the 12VDC range. When the Start key is pressed,
does the voltage between the following terminals on the DC control-
ler PCB change from 5 V to 0 V?
for C J2226A-2 (+) — J2226A-3 (–)
for M J2226A-12 (+) — J2226A-13 (–)
for Y J2223B-7 (+) — J2223B-8 (–)
for Bk J2223B-13 (+) — J2223B-6 (–)
YES: Replace the developing motor.
NO: Replace the DC controller PCB.
4.1.13 E030
DC controller PCB
1) Does the total copy counter operate normally?
NO: See “The counter fails to operate.”
YES: Replace the DC controller PCB.