Paper Feed Jam; (Error Code 391: Tray1 , 392: Tray2 , 393: Tray3 , 394: Tray4); Jam Occurs Immediately After The Power Is Turned On; Jam Occurs Immediately After The Paper Feed Is Started - Oki MC873dn Maintenance Manual

Oki Data CONFIDENTIAL

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
(3-1-1-1) Check condition of the paper running path
Paper running path Remove the applicable tray check if paper is not
of the applicable tray. jammed in the paper running path.
(3-1-1-2) Check condition of the mechanical parts
-Error code 392: Check if shape and movement of the sensor
Check the 2nd-IN levers have any abnormality or not.
sensor lever
-Error code 393:
Check the 3rd-IN
sensor lever
-Error code 394:
Check the 4th-IN
sensor lever
(3-1-1-3) Check condition of electrical parts
Check the detection Confirm that the sensor signals are normally
condition of the detected by using the Maintenance Menu
sensor signal. SWITCH SCAN function.
45850101TH Rev.1
Actions to be taken
Check work
at NG
Remove the
jammed paper.
(Refer to
the following
process)
Replace the
sensor lever with
the good sensor
lever.
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
(3-1-2-1) Check condition of the paper running path
Paper running path Check if paper is jammed or not in the paper
of the front unit and running path.
applicable tray. 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.
(3-1-2-2) Check condition of the mechanical parts
-Error code:391 Check if shape and movement of the sensor
Check the IN1 levers have any abnormality or not.
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 the feed Check if any foreign materials such as paper
roller, pickup roller dust on the surface of the feed roller or of the
and the retard roller pickup roller or not of the applicable tray.
assembly of the
Check if the feed roller or the pickup roller of the
applicable tray.
applicable tray has worn out or not.
2. TROUBLESHOOTING PROCEDURES
Actions to be taken
Check work
at NG
Remove the
jammed paper.
(Refer to
the following
process)
Replace the
sensor with the
good sensor
lever.
Remove the
foreign material.
Replace the
feed roller, the
pickup roller and
the retard roller
assembly of the
tray.
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