Canon GP160F Service Manual page 264

CHAPTER 13 TROUBLESHOOTING
6 Registration roller does not rotate
Cause Steps
Connector con- 1
nection
Registration 2
clutch (CL302)
DC controller 3
PCB
7 Scanner does not move forward
Cause Steps
Scanner drive 1
wire
Foreign object 2
in the scanner
drive path
Poor connector 3
contact
Scanner motor 4
Image proces-
sor PCB
8 Scanning lamp does not illuminate
Cause Steps
Scanning lamp 1
Inverter PCB 2
connector
Image proces- 3
sor PCB con-
nector
Inverter PCB 4
Image proces-
sor PCB
13-30
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Checks
Check the wiring from connector
J307 to the registration clutch
(CL302)
Is the trouble resolved when the
registration clutch (CL302) is
replaced?
Checks
Is the scanner drive wire properly
attached?
Is there any dirt on the scanner rail?
Does it operate smoothly?
Check the wiring from connector
J214 on the image processor PCB to
the scanner motor. Is it normal?
Is the trouble resolved when the
scanner motor is replaced?
Checks
Is the trouble resolved when the
scanning lamp is replaced?
Are the connections of CN1 and
CN2 on the image processor PCB
secure?
Is connector J207 on the image
processor PCB properly connected?
Is the trouble resolved when the
inverter PCB is replaced?
COPYRIGHT © 1999 CANON INC.
Yes/No
NO If the trouble is a faulty
connection, reconnect
the connector.
YES End
NO Replace the DC con-
troller PCB.
Yes/No
NO Attach the wire proper-
ly.
NO Check that there is no
dirt or debris on the
scanner rail surface
and that nothing is
touching the scanner.
NO If the trouble is caused
by a faulty connection,
reconnect the connec-
tor.
YES End
NO Replace the image
processor PCB.
Yes/No
YES End
NO Connect firmly.
NO Connect firmly.
YES End
NO Replace the image
processor PCB.
CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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