Canon GP160DF Service Manual page 266

CHAPTER 13 TROUBLESHOOTING
The "Supply REC. paper" indicator does not go out (Main unit and cassette
11
feeder)
Cause Steps
Cassette 1
attachment
Paper size 2
lever
Cassette lifting 3
plate raising
mechanism
Paper supply 4
sensor flag
Connector con- 5
nection
Paper supply 6
sensor
Cassette size 7
sensing switch
DC controller
PCB (feed con-
troller PCB)
13-32
Checks
Is the cassette properly mounted?
Is the cassette's paper size lever out
of alignment or damaged?
Does the lifting plate rise when the
cassette is set into the Main unit?
Is the paper supply sensor out of
alignment or damaged?
Check the following connector con-
nections
• When the problem cassette is the
Main unit cassette, check connec-
tors J302, J306 on the DC con-
troller PCB.
• When the problem cassette is a
cassette feeder cassette, check
connectors J654, J655 on the
feeder controller PCB
Are the connectors properly con-
nected?
Is the trouble resolved when the
paper supply sensor is replaced?
Is the trouble resolved when the cas-
sette size sensing switch is
replaced?
COPYRIGHT © 1999 CANON INC.
Yes/No
NO
YES
NO
YES
NO
YES
YES
NO
CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Reset the cassette.
Repair the paper size
lever.
Turn the cassette over
and check if the lifting
plate retaining roller is
damaged.
Replace the flag.
Reconnect the connec-
tors.
End
End
If the problem cassette
is the Main unit cas-
sette, replace the DC
controller PCB. If the
problem cassette is a
cassette feeder cas-
sette, replace the corre-
sponding feeder con-
troller PCB.