Oki C301 Maintenance Manual

44951501TH Rev.2
7-46
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING
(7-2) Paper unloading jam occurs after a paper is taken into printer.
Check item Check operation
Actions for NG
results
(7-2-1) Check condition of the paper running path
Face Up Stacker
Cover
Confirm that it is either fully opened or fully
closed
Eliminate any
in-between
condition of the
cover between
the fully open
position and
fully closed
position.
Rear panel Check that the installation condition of the rear
panel hampers smooth movement of a paper in
the paper running path, or not.
Remove the
rear panel and
re-install it.
Paper running path
of unloading unit
Check that any mechanical load does not exist
that hampers the smooth movement of paper in
the paper running path of the paper unloading
unit, by the visual inspection.
Check if the paper unloading motor becomes
difficult to rotate or not.
Correct the
portion that
becomes
mechanical
load.
(7-2-2) Check condition of the mechanical parts
Sensor lever of the
paper exit sensor
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor lever
with the good
sensor lever.
(7-2-3) Motor operation check
Fuser motor Confirm that the fuser motor works normally
by using the Motor & Clutch Test of the self-
diagnostic mode.
Check if any load exists or not.
Replace the
CU/PU board,
the fuser motor
or the fuser unit.
fuser unit as
a trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
Check item Check operation
Actions for NG
results
(7-2-4) Check the system connection
Fuser motor drive
cable
Check the connection condition of the cables.
Visually check whether the CU/PU board
DCHEAT connector 4 is connected half or
inserted skewed or its cord assembly is improper.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
(7-3) Paper unloading jam occurs in the middle of paper running path.
Check item Check operation
Actions for NG
results
(7-3-1) Motor operation check
Fuser motor Confirm that the fuser motor works normally
by using the Motor & Clutch Test of the self-
diagnostic mode.
Check if any load exists or not.
Replace the
CU/PU board,
the fuser motor
or the fuser unit.
If any attempt
of using new
fuser unit as
a trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.

Oki C301 Specifications

General

Brand	Oki
Model	C301
Category	Printer
Language	English