The Add Paper Indicator Fails To Turn Off; The Jam Indicator Fails To Flash - Canon NP7160 Service Manual

37. The Add Paper indicator fails to turn off.

Cause
Step
Cassette
Sensor (PS4, PS7)
DC controller PCB

38. The Jam indicator fails to flash.

Cause Step
Sensor (PSS5, PS6)
Control panel PCB
DC controller PCB
COPYRIGHT © 1998 CANON INC.
Checks
1 Is the cassette set correctly?
2 Are the following sensors normal? (See the
instructions on how to check the
photointerrupers.)
PS4 Cassette paper sensor
PS7 Multi paper sensor
Checks
1 Are the following sensors normal? (See the
instruction on how to check the
photointerrupters.)
PS5 Registration paper sensor
PS6 Delivery paper sensor
2 Execute service mode '409' (control panel
check). Does the Jam indicator turn on?
CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
Yes/No
NO Set the cassette correctly.
NO Check the wiring from the
sensor lever and each sensor to
the DC controller PCB; if
normal, replace the sensor.
YES Replace the DC controller.
Yes/No
NO Check the wiring from the
sensor lever and each sensor to
the DC controller PCB; if
normal, replace the sensor.
NO Check the wiring from the DC
controller PCB to the control
panel PCB; if normal, replace
the control panel PCB.
YES Replace the DC controller
PCB.
Actions
Actions
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