A Paper Jam In The Paper Feed, Conveying Or Eject Section Is Indicated As Soon As The Main Switch Is Turned On; Pulley - Kyocera KM-4230 Service Manual

Problem
(1) Defective eject switch.
A paper jam
in the paper
feed, convey-
ing or eject
section is indi-
cated as soon
as the main
switch is
turned on.
(2) Paper in the upper drawer is
A paper jam extremely curled.
in the paper
Check if the upper paper feed
feed section
pulley, lower paper feed pulley
is indicated
or upper forwarding pulley of
during copy-
the upper drawer are deformed.
ing (no paper
feed from
Broken paper feed switch 2
copier upper
actuator.
drawer).
Defective paper feed switch 2.
Check if the upper paper feed
clutch malfunctions.
Electrical problem with the up-
per paper feed clutch.
Causes/check procedures Corrective measures
With 5 V DC present at CN3-
B10 on the engine PCB, check
if CN3-B9 on the engine PCB
remains low when the eject
switch is turned on and off. If it
does, replace the eject switch.
Change the paper.
Check visually and replace any
deformed pulleys.
Check visually and replace pa-
per feed switch 1 if its actuator
is broken.
With 5 V DC present at CN13-8
on the engine PCB, check if
CN13-7 on the engine PCB
goes low when paper feed
switch 2 is turned on. If not,
replace paper feed switch 2.
Check and repair if necessary.
Check (see page 3-6-79).
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