Kyocera KM-C2520 Service Manual page 177

Problem
(28) Defective switch.
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
Defective pulleys or rollers.
feed/conveying sec-
tion 2).
Jam code 72
Defective motor.
(29) Defective switch.
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
Defective pulleys or rollers.
conveying section).
Jam code 73
Defective motor.
(30) Defective original switch-
back switch.
An original jams in
optional DP is indi-
cated during copying
(jam in the original
registration section).
Jam code 74
(31) Defective switch.
An original jams in
optional DP is indi-
cated during copying
(jam in the original
Defective motor.
registration section).
Jam code 75
(32) Defective switch.
An original jams in
optional DP is indi-
cated during copying
(jam in the original
Defective motor.
feed/registration sec-
tion).
Jam code 76
(33) Defective paper entry sen-
A paper jam in sor.
optional document
finisher is indicated
during copying (jam
between finisher and
machine).
Jam code 80
Causes/check procedures Corrective measures
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch, original feed switch, original switchback switch
Check visually and replace.
DP feed pulley, DP separation pulley
DP registration roller, DP registration pulley
Lower conveying roller, reading pulley
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch, original feed switch, original switchback switch
Check visually and replace.
DP feed pulley, DP separation pulley
DP registration roller, DP registration pulley
Lower conveying roller, reading pulley
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the switch if indication of the
corresponding switch on the touch panel is not displayed in
reverse.
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
DP timing switch, original feed switch, original switchback switch
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
Run maintenance item U244 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Original feed switch, original switchback switch
Run maintenance item U243 and select the following motor on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
Original feed motor, original conveying motor
(3000-sheet document finisher)
Run maintenance item U241 and turn the paper entry sensor on
and off manually. Replace the sensor if indication of the corre-
sponding sensor on the touch panel is not displayed in reverse.
(Document finisher)
With 5 V DC present at CN14-1 and CN14-3 on the finisher main
PWB, check if CN14-2and CN14-4 on the finisher main PWB
remains low or high when the paper entry sensor is turned on and
off. If it does, replace the paper entry sensor.
2FZ/2F0/2HC-3
1-4-17