Canon CP660 Service Manual page 334

CHAPTER 10 TROUBLESHOOTING
9 The cassette is empty.
Cause Step
Cassette 1/2 1
lifter (paper
level sensor
lever)
+5 V supply 2
line
Cassette 1/2 3
paper level
sensor
Pick-up PCB, 4
DC controller
PCB
10 The multifeeder is empty
Cause Step
Multifeeder tray 1
paper sensor
lever
+5V supply line 2
Multifeeder tray 3
power sensor
Multifeeder tray 4
PCB, DC con-
troller PCB
10-52
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Checks
Is the cassette 1/2 lifter (paper level
sensor lever) damaged/deformed? Is
the lifter spring displaced?
Are the connectors J1201 on the
pick-up PCB and the connectors
J210 on the DC controller PCB con-
nected securely?
Replace the cassette 1/2 paper level
sensor. Is the problem corrected?
Replace the pick-up PCB. Is the
problem corrected?
Checks
Is the multifeeder tray paper sensor
lever or the spring
damaged/deformed? Is the lever or
the spring displaced?
Are the connector J1301 on the mul-
tifeeder tray PCB and connector
J213 on the DC controller PCB con-
nected securely?
Replace the multifeeder tray power
sensor. Is the problem corrected?
Replace the multifeeder tray PCB. Is
the problem corrected?
Yes/No
YES
NO
YES
YES
NO
Yes/No
YES
NO
YES
YES
NO
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Replace the cassette
1/2 lifter (paper lever
sensor lever). Position
the spring correctly.
Connect the connec-
tors.
Replace the sensor.
End.
Replace the DC con-
troller PCB.
Action
Replace the multifeed-
er tray power sensor
lever or the spring.
Position them correctly.
Connect the connec-
tors securely.
Replace the sensor.
End.
Replace the DC con-
troller PCB.