Kyocera KM-4230

2A3/4
3-6-25
Problem Causes/check procedures Corrective measures
• SRDF
(1)
An original
jams when
the main
switch is
turned on.
(2)
An original
jams during
continuous
copying of
multiple origi-
nals.
A piece of paper torn from an
original is caught around the
original feed switch.
Defective original feed switch.
A piece of paper torn from an
original is caught around the
original switchback switch.
Defective original switchback
switch.
A piece of paper torn from an
original is caught around the DF
timing switch.
Defective DF timing switch.
Defective original feed switch.
Check if the original feed motor
or the original conveying motor
malfunction.
Remove any found.
With 5 V DC present at CN6-B4
on the DF driver PCB, check if
CN6-B5 on the DF driver PCB
remains low when the original
feed switch is turned on and off.
If it does, replace the original
feed switch.
Remove any found.
With 5 V DC present at CN6-A6
on the DF driver PCB, check if
CN6-A5 on the DF driver PCB
remains low when the original
switchback switch is turned on
and off. If it does, replace the
original switchback switch.
Remove any found.
With 5 V DC present at
CN6-A15 on the DF driver PCB,
check if CN6-A14 on the DF
driver PCB remains low when
the DF timing switch is turned
on and off. If it does, replace
the DF timing switch.
With 5 V DC present at CN6-B4
on the DF driver PCB, check if
CN6-B5 on the DF driver PCB
remains low when the original
feed switch is turned on and off.
If it does, replace the original
feed switch.
Check and remedy.