Oki Data CONFIDENTIAL
45850101TH Rev.1
2-47
2. TROUBLESHOOTING PROCEDURES
2.5.5. (3-1) Paper feed jam
(Error code 391: Tray1 , 392: Tray2 , 393: Tray3 , 394: Tray4)
(3-1-1) Jam occurs immediately after the power is turned on. (Tray2, Tray3, Tray4)
Check item
Check work
Actions to be taken
at NG
(3-1-1-1) Check condition of the paper running path
Paper running path
of the applicable tray.
Remove the applicable tray check if paper is not
jammed in the paper running path.
Remove the
jammed paper.
(Refer to
the following
process)
(3-1-1-2) Check condition of the mechanical parts
-Error code 392:
Check the 2nd-IN
sensor lever
-Error code 393:
Check the 3rd-IN
sensor lever
-Error code 394:
Check the 4th-IN
sensor lever
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor lever with
the good sensor
lever.
(3-1-1-3) Check condition of electrical parts
Check the detection
condition of the
sensor signal.
Confirm that the sensor signals are normally
detected by using the Maintenance Menu
SWITCH SCAN function.
Replace either
the CU/PU board
or the front
sensor board
(RSG PCB) or
the 2nd(3rd/4th)
Tray unit board
(Board-GOH-2)
or connection
cable.
(3-1-2) Jam occurs immediately after the paper feed is started. (Tray1, Tray2, Tray3, Tray4)
Check item
Check work
Actions to be taken
at NG
(3-1-2-1) Check condition of the paper running path
Paper running path
of the front unit and
applicable tray.
Check if paper is jammed or not in the paper
running path.
If there is no jammed paper, confirm the position
of the paper guide of the paper cassette and
the paper stopper, and confirm whether paper is
loaded correctly.
Remove the
jammed paper.
(Refer to
the following
process)
(3-1-2-2) Check condition of the mechanical parts
-Error code:391
Check the IN1
sensor lever.
-Error code 392:
Check the sensor
levers of the 2nd-IN
sensor
and the IN1 sensor.
-Error code 393:
Check the sensor
levers of the 3rd-IN
sensor
and the IN1 sensor.
-Error code 394:
Check the sensor
levers of the 4th-IN
sensor
and the IN1 sensor.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor with the
good sensor
lever.
Check the feed
roller, pickup roller
and the retard roller
assembly of the
applicable tray.
Check if any foreign materials such as paper
dust on the surface of the feed roller or of the
pickup roller or not of the applicable tray.
Remove the
foreign material.
Check if the feed roller or the pickup roller of the
applicable tray has worn out or not.
Replace the
feed roller, the
pickup roller and
the retard roller
assembly of the
tray.
