Kyocera KM-4230 Service Manual page 465

2A3/4
Problem
(3)
A paper jam
in the paper
feed section
is indicated
during copy-
ing (no paper
feed from
copier lower
drawer).
(4)
A paper jam
in the paper
feed section
is indicated
during copy-
ing (no paper
feed from by-
pass).
3-6-20
Causes/check procedures
Paper in the lower drawer is
extremely curled.
Check if the upper paper feed
pulley, lower paper feed pulley
or upper forwarding pulley of
the lower drawer are deformed.
Broken paper feed switch 3
actuator.
Defective paper feed switch 3.
Check if the lower paper feed
clutch malfunctions.
Electrical problem with the
lower paper feed clutch.
Paper on the bypass table is
extremely curled.
Check if the forwarding pulley,
upper or lower paper feed pul-
leys of the bypass are de-
formed.
Broken feed switch actuator.
Defective feed switch.
Check if the bypass paper feed
clutch malfunctions.
Electrical problem with the by-
pass paper feed clutch.
Corrective measures
Change the paper.
Check visually and replace any
deformed pulleys.
Check visually and replace pa-
per feed switch 3 if its actuator
is broken.
With 5 V DC present at CN13-
11 on the engine PCB, check if
CN13-10 on the engine PCB
goes low when paper feed
switch 3 is turned on. If not,
replace paper feed switch 3.
Check and repair if necessary.
Check (see page 3-6-80).
Change the paper.
Check visually and replace any
deformed pulleys.
Check visually and replace the
feed switch if its actuator is bro-
ken.
With 5 V DC present at CN13-2
on the engine PCB, check if
CN13-1 on the engine PCB
remains low when the feed
switch is turned on and off. If it
does, replace the feed switch.
Check and repair if necessary.
Check (see page 3-6-81).