Kyocera KM-2540 Service Manual page 126

2JB/2JC
Problem
(19)
An original jams in
optional DP is indi-
cated during copying
(no original feed).
Jam code 70
(20)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
conveying section 1).
Jam code 71
(21)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
conveying section 2).
Jam code 72
(22)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
switchback section).
Jam code 73
(23)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
switchback/feed sec-
tion).
Jam code 74
(24)
An original jams in
optional DP is indi-
cated during copying
(a jam in the original
switchback/convey-
ing section).
Jam code 75
(25)
A paper jam in
optional document
finisher is indicated
during copying (jam
between finisher and
machine).
Jam code 80
1-4-14
Causes/check procedures
Defective DP timing switch.
Check if the original feed
motor malfunctions.
Defective DP timing switch.
Defective DP timing switch.
Check if the original con-
veying motor malfunctions.
Defective DP timing switch.
Check if the original con-
veying motor malfunctions.
Defective DP timing switch.
Check if the original switch-
back motor malfunctions.
Defective switch.
Defective paper entry sen-
sor.
Corrective measures
Run maintenance item U244 and turn the DP timing 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 U243 and select the original feed motor on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Run maintenance item U244 and turn the DP timing 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 DP timing 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 U243 and select the original conveying
motor on the touch panel to be turned on and off. Check the status
and remedy if necessary.
Run maintenance item U244 and turn the DP timing 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 U243 and select the original conveying
motor on the touch panel to be turned on and off. Check the status
and remedy if necessary.
Run maintenance item U244 and turn the DP timing 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 U243 and select the original switchback
motor on the touch panel to be turned on and off. Check the status
and remedy if necessary.
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.
DP timing switch, original switchback switch
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.