Canon CP660 Service Manual page 333

7 The pick-up paper size is wrong.
Cause Step
Size detecting 1
switch lever
(cassette 1/2)
Contact (size 2
detection PCB
of the cassette
1/2)
+5 V supply 3
line
Cassette 1/2 4
size detection
PCB
8 The cassette is absent. (printer unit)
Cause Step
Cassette 1/2 1
sensor lever
+5V supply line 2
Cassette 1/2 3
sensor
Pick-up PCB, 4
DC controller
PCB
COPYRIGHT © 1999 CANON INC.
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Checks
Is the size detecting switch lever of
the cassette 1/2 deformed/dam-
aged? Or, is the spring of the switch
lever displaced?
Is the switch contact of the size
detection PCB of the cassette 1/2
deformed/damaged?
Are the connectors J1601 on the
cassette 1/2 size detection PCB and
the connector J218 on the DC con-
troller PCB connected securely?
Replace the cassette 1/2 size detec-
tion PCB. Is the problem corrected?
Checks
Is the cassette 1/2 sensor lever
damaged/deformed? Is the spring
displaced?
Are the connectors J1201 on the
pick-up PCB and the connector
J210 on the DC controller PCB con-
nected securely?
Replace the cassette 1/2 sensor. Is
the problem corrected?
Replace the pick-up PCB. Is the
problem corrected?
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
Yes/No Action
YES Replace the size
detecting lever of the
cassette 1/2, or posi-
tion it correctly.
YES Replace the switch
contact of the size
detection PCB of the
cassette 1/2.
NO Connect the connec-
tors.
YES End.
NO Replace the DC con-
troller PCB.
Yes/No Action
YES Replace the cassette
1/2 sensor lever, or
position the spring cor-
rectly.
NO Connect the connec-
tors securely.
YES Replace the sensor.
YES End.
NO Replace the DC con-
troller PCB.
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