Paper Misfeeds; Copier - Kyocera KM-4230 Service Manual

2A3/4

3-6-2 Paper misfeeds

• Copier

Problem
(1)
A paper jam
in the paper
feed, convey-
ing or eject
section is indi-
cated as soon
as the main
switch is
turned on.
3-6-18
Causes/check procedures
A piece of paper torn from copy
paper is caught around paper
feed switch 1/2/3, the feed
switch,registration switch or
eject switch.
Defective paper feed switch 1.
Defective paper feed switch 2.
Defective paper feed switch 3.
Defective feed switch.
Defective registration switch.
Corrective measures
Check visually and remove it, if
any.
With 5 V DC present at CN13-5
on the engine PCB, check if
CN13-4 on the engine PCB re-
mains low when paper feed
switch 1 is turned on and off. If
it does, replace paper feed
switch 1.
With 5 V DC present at CN13-8
on the engine PCB, check if
CN13-7 on the engine PCB re-
mains low when paper feed
switch 2 is turned on and off. If
it does, replace paper feed
switch 2.
With 5 V DC present at CN13-
11 on the engine PCB, check if
CN13-10 on the engine PCB
remains low when paper feed
switch 3 is turned on and off. If
it does, replace paper feed
switch 3.
With 5 V DC present at CN13-2
on the engine PCB, check if
CN13-1 on the engine PCB re-
mains low when the feed switch
is turned on and off. If it does,
replace the feed switch.
With 5 V DC present at CN8-B1
on the engine PCB, check if
CN8-B2 on the engine PCB
remains low when the registra-
tion switch is turned on and off.
If it does, replace the registra-
tion switch.