2KA
1-4-15
(16)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in cassette 4).
Jam code 25
Broken PF feed switch
actuator.
Check visually and replace switch.
Defective paper feeder feed
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.
Defective feed pulleys or
feed rollers.
Check visually and replace.
Defective PF paper feed
clutch 2.
Run maintenance item U247 and select PF paper feed clutch 2 to
be turned on and off. Check the status and remedy if necessary.
Electrical problem with PF
paper feed clutch 2.
Check (see service manual of paper feeder).
(17)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in MP tray).
Jam code 26
Broken switch actuator. Check visually and replace switch.
Defective 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
Defective MP paper con-
veying clutch.
Run maintenance item U032 and select MP paper conveying
clutch to be turned on and off. Check the status and remedy if
necessary.
Electrical problem with MP
paper conveying clutch.
Check (see page 1-4-63).
(18)
A paper jam in the
paper conveying sec-
tion is indicated dur-
ing copying (misfeed
in registration/trans-
fer section).
Jam code 30
Broken registration switch
actuator.
Check visually and replace switch.
Defective 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
The contact between the
right and left registration
rollers is not correct.
Check visually and replace.
Defective registration
clutch.
Run maintenance item U032 and select registration clutch to be
turned on and off. Check the status and remedy if necessary.
Electrical problem with reg-
istration clutch.
Check (see page 1-4-63).
(19)
A paper jam in the
paper conveying sec-
tion is indicated dur-
ing copying (misfeed
round the transfer
belt).
Jam code 31
Defective loop sensor. 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.
Defective registration
clutch.
Run maintenance item U032 and select registration clutch to be
turned on and off. Check the status and remedy if necessary.
Electrical problem with reg-
istration clutch.
Check (see page 1-4-63).
Problem
Causes/check procedures
Corrective measures