Jam Occurs Immediately After Paper Has Reached The Fuser; Paper Unloading Jam (Error Code 382); Paper Unloading Jam Occurs Immediately After The Power Is Turned On - Oki C711 Maintenance Manual

Oki Data CONFIDENTIAL

(6-4) Jam occurs immediately after paper has reached the fuser.

Check item
(6-4-1) 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.
(6-4-2) Temperature control of the roller rotation speed
Heat roller detected Check the detected temperature of the heat roller
temperature using the self-diagnostic mode. Is abnormally
high temperature or abnormally temperature
detected?
(6-4-3) Check the installation condition of fuser unit
Fuser unit Check that the fuser unit is installed normally.
(Is it pushed in down to the bottom-most point?)
44205401TH Rev.1
Action to be taken
Check work
at NG
Replace the
CU/PU board.
Replace the fuser
motor.
Replace 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.
Replace fuser
unit, or relay
board (PRY
PCB) or the
CU/PU board.
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.
Install the fuser
unit correctly in
a printer.

7.5.2. (7) Paper unloading jam (error code 382)

(7-1)

Paper unloading jam occurs immediately after the power is turned on.

Check item
(7-1-1) Check condition of the paper running path
Paper running path of Check if paper is jammed or not in the paper
the paper unloading running path.
unit
(7-1-2) Check condition of the mechanical parts
Check the sensor Check if shape and movement of the sensor
lever of the paper exit levers have any abnormality or not.
sensor.
(7-1-3) Check condition of electrical parts
Check the detection Confirm that the sensor signals are normally
condition of the detected by using the SWITCH SCAN function of
sensor signal. the self-diagnostic mode.
Check the output Check for the following signals at the RELAY
signal level of the connector of the CU/PU board.
EXIT sensor.
Pin-9: EXIT sensor
Confirm that the above signal levels change when
the sensor lever is operated.
Check the power Check the 5V power voltage at the EXIT
voltages supplied to connector of the relay board.
the relay board.
Pin-1: 5V power supply
Pin-3: 0VL
7. Troubleshooting and repair procedure
Action to be taken
Check work
at NG
Remove the
jammed paper.
Replace the
sensor lever with
the good sensor
lever.
Replace the
CU/PU board or
EXIT sensor or
its cable or its
connection cable.
Replace the EXIT
sensor.
Replace the
connection cable.
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