Canon LBP-860 Service Manual page 177

Printer detects a jam and stops even though a paper jam has not
M - 7
Sensor arm
Delivery
paper sensor
driver PCB
DC ~ontrollcr
6
P i c k - u p "lotor 7
driver PCB
DC rontroller
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the printer. Is the REGIST SENSOR
Is the DELIVERY SENSOR LED of the
Is the rcgist paper sensor arm or
delivery paper sensor arm damaged?
When the regist paper sensor arm is
moved, does the voltage between
connectors J605-6 CRESS) and
driver PCB change from about 5 VDC
to zero?
paper sensor arm is
damaged. If it is
it; if it is not. replace the
Check whether the delivery
Y E S
paper sensor arm is
damaged. If it is, replace it:
if it is not, replace the
delivery paper sensor.
Replace the pick-up motor
driver PCB. If the
problem persists, replace
Replace the damaged paper
sensor arm.
Replace the delivery paper
sensor.
Y E S
Replace the pick-up motor
driver PCB. If the problem
persists after replacing the
PCB. replace the DC
controller PCB.
NO Replace the regist paper
sensor.
replace
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