Kyocera KM-3050 - Page 158

2GN/2GP/2GR-5
1-4-18
(28)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
registration section).
Jam code 75
Defective switch. Run maintenance item U244 and turn switch on and off manually.
Replace the switch if indication of the corresponding switch on the
touch panel is not displayed in reverse.
Original registration switch, DP timing switch 1
(29)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
feed/conveying sec-
tion).
Jam code 76
Defective DP timing switch
2.
Run maintenance item U244 and turn the DP timing switch 2 on
and off manually. Replace the switch if indication of the corre-
sponding switch on the touch panel is not displayed in reverse.
(30)
A paper jam in
optional document
finisher is indicated
during copying (jam
between finisher and
machine).
Jam code 80
Defective paper entry sen-
sor.
Run maintenance item U241 and turn the paper entry sensor on
and off manually. Replace the original switchback switch if indica-
tion of the corresponding switch on the touch panel is not dis-
played in reverse.
(31)
A paper jam in
optional document
finisher is indicated
during copying
(paper jam during
paper insertion to the
finisher).
Jam code 81
3000-sheet document finisher/document finisher
Extremely curled paper. Replace the paper.
Defective paper entry sen-
sor.
(3000-sheet document finisher)
Run maintenance item U241 and turn the paper entry sensor on
and off manually. Replace the original switchback switch if indica-
tion of the corresponding switch on the touch panel is not dis-
played in reverse.
(Document finisher)
With 5 V DC present at CN14-1 and CN14-3 on the finisher main
PWB, check if CN14-2 and 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.
Defective finisher main
PWB.
Replace the finisher main PWB and check for correct operation.
Built-in finisher
Extremely curled paper. Replace the paper.
Defective paper conveying
switch.
With 5 V DC present at YC2-23 on the finisher control PWB,
check if YC2-21 on the finisher control PWB remains low or high
when the paper conveying switch is turned on and off. If it does,
replace the paper conveying switch.
Check if the feedshift roller
or feedshift pulley is
deformed.
Check and remedy.
Problem
Causes/check procedures Corrective measures