Canon CP660 Service Manual page 339

20 The duplexing motor is faulty.
Cause Step
Connector 1
(duplexing
motor drive sig-
nal line)
Duplexing 2
motor (M8)
Duplexing dire
PCB
21 The reversal roller releasing solenoid is faulty.
Cause Step
Connector 1
(reversing roller
releasing sole-
noid drive sig-
nal line)
Reversing 2
roller releasing
solenoid (SL7)
Duplexing
driver PCB
22 The duplexing flapper solenoid is faulty.
Cause Step
Connector 1
(duplexing flap-
per solenoid
drive signal
line)
Duplexing flap- 2
per solenoid
(SL6)
Duplexing
driver PCB
COPYRIGHT © 1999 CANON INC.
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Checks
Is the connector J2004 on the
duplexing driver PCB connected
securely?
Replace the duplexing motor. Is the
problem corrected?
Checks
Is the connector J2009 on the
duplexing driver PCB connected
securely?
Disconnect the connector J2009 of
the reversing roller releasing sole-
noid, and measure the resistance
between the connectors J2009-1
and J2009-2 on the harness side. Is
it about 50 Ω?
Checks
Is the connector J2002 on the
duplexing driver PCB connected
securely?
Disconnect the connector J2002 of
the duplexing flapper solenoid, and
measure the resistance between the
connectors J2002-1 and J2002-2 on
the harness side. Is it about 130 Ω?
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
Yes/No Action
NO Connect it securely.
YES Replace the motor.
NO Replace the duplexing
driver PCB.
Yes/No Action
NO Connect the connector
securely.
NO Replace the reversing
roller releasing sole-
noid.
YES Replace the duplexing
driver PCB.
Yes/No Action
NO Connect the connector
securely.
NO Replace the duplexing
flapper solenoid.
YES Replace the duplexing
driver PCB.
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