Kyocera KM-4230 Service Manual page 531

2A3/4
Problem
(43)
A paper jam
in the paper
feed, paper
conveying or
fixing section
is indicated
on the touch
panel immedi-
ately after the
main switch is
turned on.
3-6-86
Causes
A piece of paper
torn from copy
paper is caught
around paper feed
switch 1/2/3, the
feed switch or the
eject switch.
Defective paper
feed switch 1.
Defective paper
feed switch 2.
Defective paper
feed switch 3.
Defective feed
switch.
Defective registra-
tion switch.
Defective eject
switch.
Check procedures/corrective measures
Check and remove if any.
With 5 V DC present at CN13-5 on the
engine PCB, check if CN13-4 on the engine
PCB remains 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 remains 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 remains 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 registration
switch is turned on and off. If it does, replace
the registration switch.
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.