Kyocera KM-3050 Service Manual page 132

2GN/2GP/2GR
Problem
(37)
A paper jam in
optional document
finisher is indicated
during copying (inter-
nal tray paper entry
sensor 1 jam).
Jam code 86
(38)
A paper jam in
optional document
finisher is indicated
during copying (inter-
nal tray paper entry
sensor 2 jam).
Jam code 87
(39)
A paper jam in
optional document
finisher is indicated
during copying (main
tray eject jam).
Jam code 88
(40)
A paper jam in
optional document
finisher is indicated
during copying (cen-
terfold unit jam).
Jam code 89
(41)
A paper jam in
optional document
finisher is indicated
during copying (mail
box jam).
Jam code 90
(42)
A paper jam in
optional document
finisher is indicated
during copying (eject
sensor non-arrival
jam).
Jam code 92
1-4-20
Causes/check procedures
Defective internal tray
paper entry sensor 1.
Defective internal tray
paper entry sensor 2.
Defective sensor/switch.
Defective sensor/switch.
Defective sensor/switch.
Defective eject sensor.
Check if the paper convey-
ing motor malfunctions.
Check if the eject roller and
eject pulley contact each
other.
Check if the eject guide is
deformed.
Defective finisher main
PWB.
Corrective measures
Run maintenance item U241 and turn internal tray paper entry
sensor 1 on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch panel
is not displayed in reverse.
Run maintenance item U241 and turn internal tray paper entry
sensor 2 on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch panel
is not displayed in reverse.
Run maintenance item U241 and turn the following switch on and
off manually. Replace the original switchback switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.
Eject switch 1, side registration home position sensor 1/2, paper
conveying belt position detection sensor
Run maintenance item U241 and turn the following switch on and
off manually. Replace the original switchback switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.
Centerfold paper entry sensor, centerfold eject switch, centerfold
paper detection switch
Run maintenance item U241 and turn the following switch on and
off manually. Replace the original switchback switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.
Mail paper entry switch, tray eject sensor
With 5 V DC present at CN5-4 on the finisher main PWB, check if
CN5-6 on the finisher main PWB remains low or high when the
eject sensor is turned on and off. If it does, replace the eject sen-
sor.
Check.
Check and remedy.
Check and remedy.
Replace the finisher main PWB and check for correct operation.