Kyocera FS-C8500DN Service Manual page 169

Problem
(16) Broken PF feed switch
A paper jam in the actuator.
paper feed section is
Defective paper feeder feed
indicated during
switch.
copying (multiple
sheets in cassette 4).
Jam code 25
Defective feed pulleys or
feed rollers.
Defective PF paper feed
clutch 2.
Electrical problem with PF
paper feed clutch 2.
(17) Broken switch actuator.
A paper jam in the
Defective switch.
paper feed section is
indicated during
copying (multiple
sheets in MP tray).
Jam code 26
Defective MP paper con-
veying clutch.
Electrical problem with MP
paper conveying clutch.
(18) Broken registration switch
A paper jam in the actuator.
paper conveying sec-
Defective switch.
tion is indicated dur-
ing copying (misfeed
in registration/trans-
fer section).
Jam code 30
The contact between the
right and left registration
rollers is not correct.
Defective registration
clutch.
Electrical problem with reg-
istration clutch.
(19) Defective loop sensor.
A paper jam in the
paper conveying sec-
tion is indicated dur-
Defective registration
ing copying (misfeed
clutch.
round the transfer
belt).
Electrical problem with reg-
Jam code 31
istration clutch.
Causes/check procedures Corrective measures
Check visually and replace switch.
With 5 V DC present at YC3-7 on the PF main PWB, check if YC3-
5 on the PF main PWB remains low or high when the PF feed
switch is turned on and off. If it does, replace the PF feed switch.
Check visually and replace.
Run maintenance item U247 and select PF paper feed clutch 2 to
be turned on and off. Check the status and remedy if necessary.
Check (see service manual of paper feeder).
Check visually and replace switch.
Run maintenance item U031 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch is not displayed in reverse.
MP paper feed switch, MP paper conveying switch, registration
switch
Run maintenance item U032 and select MP paper conveying
clutch to be turned on and off. Check the status and remedy if
necessary.
Check (see page 1-4-63).
Check visually and replace switch.
Run maintenance item U031 and turn the following switch on and
off manually. Replace the switch if indication of the corresponding
switch is not displayed in reverse.
Feed switch 1, registration switch
Check visually and replace.
Run maintenance item U032 and select registration clutch to be
turned on and off. Check the status and remedy if necessary.
Check (see page 1-4-63).
Run maintenance item U031 and turn the loop sensor on and off
manually. Replace the switch if indication of the corresponding
switch is not displayed in reverse.
Run maintenance item U032 and select registration clutch to be
turned on and off. Check the status and remedy if necessary.
Check (see page 1-4-63).
2KA
1-4-15