3A6
1-3-3
(1)
Paper jams in the
duplex unit when the
main switch is turned
on.
(2)
Paper jams in the
feedshift section
during copying (jam
in feedshift section).
(3)
Paper jams in the
duplex unit during
copying (jam in
duplex paper
conveying section 1).
(4)
Paper jams in the
duplex unit during
copying (jam in
duplex paper
conveying section 2).
A piece of paper torn from
copy paper is caught
around duplex paper
conveying switch 1 or 2.
Defective duplex paper
conveying switch 1.
Defective duplex paper
conveying switch 2.
Defective duplex paper
conveying switch 1.
Check if the right eject
pulley or right eject roller is
deformed.
Defective duplex paper
conveying switch 2.
Check if the duplex pulley
or upper duplex roller is
deformed.
Defective duplex paper
conveying switch 2.
Defective copier
registration switch.
Check if the duplex pulley
or lower duplex roller is
deformed.
Remove any found.
With 5 V DC present at CN5-11 on the copier main PCB, check if
CN5-10 on the main PCB remains low when duplex paper
conveying switch 1 is turned on and off. If it does, replace duplex
paper conveying switch 1.
With 5 V DC present at CN5-8 on the copier main PCB, check if
CN5-7 on the main PCB remains low when duplex paper
conveying switch 2 is turned on and off. If it does, replace duplex
paper conveying switch 2.
With 5 V DC present at CN5-11 on the copier main PCB, check if
CN5-10 on the main PCB remains high when duplex paper
conveying switch 1 is turned on and off. If it does, replace duplex
paper conveying switch 1.
Check visually and replace the pulley or roller if deformed.
With 5 V DC present at CN5-8 on the copier main PCB, check if
CN5-7 on the main PCB remains high when duplex paper
conveying switch 2 is turned on and off. If it does, replace duplex
paper conveying switch 2.
Check visually and replace the pulley or roller if deformed.
With 5 V DC present at CN5-8 on the copier main PCB, check if
CN5-7 on the main PCB remains low when duplex paper
conveying switch 2 is turned on and off. If it does, replace duplex
paper conveying switch 2.
With 5 V DC present at CN3-6 on the copier main PCB, check if
CN3-7 on the main PCB remains high when the registration
switch is turned on and off. If it does, replace the registration
switch.
Check visually and replace the pulley or roller if deformed.
Problem Causes Check procedures/corrective measures
(3) Paper misfeeds
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