Oki Data CONFIDENTIAL
45762101TH Rev.1
2-53
2. TROUBLESHOOTING PROCEDURES
Check item
Check operation
Actions for NG
results
(4-2-2) Check condition of the mechanical parts
Ejection sensor
lever
Does the paper reach the ejection sensor lever?
YES:
Go next question.
NO:
Go Check drum
motror.
Does the ejection sensor lever work normally?
(It moves freely by touching.)
Replace the
ejection sensor
lever.
Is the EXIT connector of the main board
connected properly?
Connect the
EXIT connector
properly.
Clean the ejection sensor
Replace the main
board.
Drum motor
Does the main drum motor rotate?
YES:
Go Check
transfer roller.
NO:
Go next question.
Is the DM connector of the main board connected
appropriately?
Connect DM
connector
appropriately.
Replace the main drum motor.
Replace the main
board.
Transfer roller
Does the transfer roller rotate?
Check the gear.
(Transfer roller
gear, drum gear
at the left of drum
cartridge)
Is the fuser unit Assy appropriately installed?
Install the fuser
unit Assy.
Image drum cartridge
Is the image drum cartridge appropriately
Installed?
Set the image
drum cartridge
appropriately.
2.5.5. (5) Paper feed jam (Error code 390: Multipurpose tray)
(5-1) Does a jam error occur when turning on the power?
Check item
Check operation
Actions for NG
results
(5-1-1) Check condition of paper running path
Paper running path
of the multipurpose
tray
Open the front cover check if paper is not
jammed in the paper running path.
Remove the
paper
Sheet Receive of
the multipurpose
tray
Confirm that the Sheet Receive has moved up
normally.
Confirm that the support spindle and spring of
the Sheet Receive have been installed in the
specified positions normally.
Correct
installation of
the above parts
so that the
Sheet Receive
moves up to
the specified
position
normally.
(5-1-2) Check condition of the mechanical parts
Entrance sensor
Does the entrance sensor lever work normally? (It
moves freely by touching.)
Replace the
entrance sensor
lever.
Front cover
Confirm that the locks in the right and left of the
front cover are locked normally.
Replace the
font cover
assembly
Check the feed
roller and the
pickup roller.
Check if any foreign materials such as paper dust
on the surface of the feed roller or of the pickup
roller or not.
Remove the
foreign material.
Clean a sensor.
Replace the main
board.
