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Problem
(7)
A paper jam in the
paper feed section is
indicated during
copying (jam in verti-
cal paper conveying
section).
Jam code 18
(8)
A paper jam in the
paper feed section is
indicated during
copying (jam in
optional paper feeder
vertical paper con-
veying section).
Jam code 19
(9)
A paper jam in the
paper feed section is
indicated during
copying (jam in MP
tray paper conveying
section).
Jam code 20
(10)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in paper feed
section).
Jam code 21
Y112040-6
Causes/check procedures
Broken feed switch 1/2/3
actuator.
Defective switch.
Defective feed pulleys or
feed rollers.
Broken feed switch 3 actua-
tor.
Defective feed switch 3.
Broken PF feed switch
actuator.
Defective PF feed switch.
Broken MP feed switch or
registration switch actuator.
Defective switch.
Broken feed switch 1/2/3
actuator.
Defective switch.
Broken PF feed switch
actuator.
Defective PF feed switch.
Check if the clutch malfunc-
tions.
Electrical problem with
clutch.
Check if PF paper feed
clutch 1 malfunctions.
Electrical problem with PF
paper feed clutch 1.
Defective feed pulleys or
feed rollers.
Corrective measures
Check visually and replace switch.
Run maintenance item U031 and turn following switch on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Feed switch 1/2/3
Check visually and replace.
Check visually and replace switch.
Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Check visually and replace switch.
With 5 V DC present at YC2-8 on the PF main PWB, check if YC2-
7 on the PF main PWB remains low when the PF feed switch is
turned on and off. If it does, replace the PF feed switch.
Check visually and replace switch.
Run maintenance item U031 and turn following switch on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
MP feed switch, registration switch
Check visually and replace switch.
Run maintenance item U031 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.
Feed switch 1/2/3
Check visually and replace switch.
With 5 V DC present at YC2-8 on the PF main PWB, check if YC2-
7 on the PF main PWB remains low when the PF feed switch is
turned on and off. If it does, replace the PF feed switch.
Run maintenance item U032 and select following clutch on the
touch panel to be turned on and off. Check the status and remedy
if necessary.
paper feed clutch 1/2
Check (see page 1-4-42).
Run maintenance item U247 and select PF paper feed clutch 1 on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Check (see service manual of paper feeder).
Check visually and replace.
Service Manual
2K5
1-4-11
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