3CP
1-3-3
(3) Paper misfeeds
Problem Causes Check procedures/corrective measures
A piece of paper torn from
copy paper is caught
around the switchback
eject switch and switchback
feed in switch.
Defective switchback feed
in switch.
Defective switchback eject
switch.
Broken switchback eject
switch actuator.
Defective switchback feed
in switch.
Defective switchback eject
switch.
Remove any found.
With 5 V DC present at CN5-1 on the main PCB, check if CN5-3
on the main PCB remains high or low when the switchback feed
in switch is turned on and off. If it does, replace the switchback
feed in switch.
With 5 V DC present at CN5-2 on the main PCB, check if CN5-4
on the main PCB remains high or low when the switchback eject
switch is turned on and off. If it does, replace the switchback
eject switch.
Check visually and replace the switchback eject switch if its
actuator is broken.
With 5 V DC present at CN5-1 on the main PCB, check if CN5-3
on the main PCB remains high or low when the switchback feed
in switch is turned on and off. If it does, replace the switchback
feed in switch.
With 5 V DC present at CN5-2 on the main PCB, check if CN5-4
on the main PCB remains high or low when the switchback eject
switch is turned on and off. If it does, replace the switchback
eject switch.
(1)
Paper jams in the
switchback unit when
the main switch is
turned on.
(2)
Paper jams in the
switchback section is
indicated during
copying (jam in
switchback unit).
Jam code 53
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