Kyocera FS-C8500DN Service Manual page 171

Problem
(25) Defective paper entry sen-
A paper jam in sor.
optional document
finisher is indicated
during copying (jam
between finisher and
machine).
Jam code 80
(26) Extremely curled paper.
A paper jam in
Defective paper entry sen-
optional document
sor.
finisher is indicated
during copying
(paper jam during
paper insertion to the
finisher).
Jam code 81
Defective finisher main
PWB.
(27) Defective staple home posi-
A paper jam in tion sensor.
optional document
finisher is indicated
during copying (fin-
isher stapler jam).
Jam code 82
(28) 3000-sheet document finisher
A paper jam in
Defective eject switch 1.
optional document
finisher is indicated
during copying (eject
sensor stay jam).
Document finisher
Jam code 83
Defective eject paper sen-
sor.
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.
Causes/check procedures Corrective measures
(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 is not displayed in reverse.
(Document finisher)
With 5 V DC present at CN3-1 and CN3-3 on the finisher main
PWB, check if CN3-2and CN3-4 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.
Change the paper.
(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 is not displayed in reverse.
(Document finisher)
With 5 V DC present at CN3-1 and CN3-3 on the finisher main
PWB, check if CN3-2and CN3-4 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.
Replace the finisher main PWB and check for correct operation.
Run maintenance item U241 and turn the staple home position
sensor on and off manually. Replace the sensor if indication of the
corresponding sensor is not displayed in reverse.
Run maintenance item U241 and turn eject switch 1 on and off
manually. Replace the switch if indication of the corresponding
switch is not displayed in reverse.
With 5 V DC present at CN7-1 on the finisher main PWB, check if
CN7-3 on the finisher main PWB remains low or high when the
eject paper sensor is turned on and off. If it does, replace the eject
paper sensor.
Check and remedy.
Check and remedy.
Check and remedy.
Replace the finisher main PWB and check for correct operation.
2KA
1-4-17