Canon CP660 Service Manual page 338

CHAPTER 10 TROUBLESHOOTING
17 The waste toner case is full.
Cause Step
Drum cartridge 1
Drum drive 2
assembly
18 The duplexing unit fails to turn on.
Cause Step
Duplexing unit 1
Connector 2
(24V supply
line)
Duplexing
driver PCB
19 The horizontal registration motor is faulty.
Cause Step
Connector 1
(horizontal reg-
istration motor
drive signal
line)
Horizontal reg- 2
istration motor
(M7)
Duplexing
driver PCB
10-56
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Checks
Replace the drum cartridge? Is the
problem corrected? (The rotating
mechanism of the stirring plate
inside the drum cartridge may be
faulty.)
Is any part of the drum drive assem-
bly of the printer unit faulty?
Checks
Is the duplexing unit set properly in
the printer unit?
Is the connector J2001 on the
duplexing driver PCB connected
securely?
Checks
Is the connector J2005 on the
duplexing driver PCB connected
securely?
Replace the horizontal registration
motor. Is the problem corrected?
Yes/No
YES
YES
Yes/No
NO
NO
YES
Yes/No
NO
YES
NO
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Replace it.
Replace the problem
part.
Action
Set it properly.
Connect the connector
securely.
Replace the duplexing
driver PCB.
Action
Connect the connector
securely.
Replace it.
Replace the duplexing
driver PCB.