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 MC561 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?)
44473001TH Rev.1
Check operation Actions for NG
results
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 the
fuser unit and
the PU/CU
board.
f 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.

7.5.4. (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 Check if paper is jammed or not in the paper
path of the paper running path.
unloading unit
(7-1-2) Check condition of the mechanical parts
EXIT sensor lever Check if shape and movement of the sensor
check levers have any abnormality or not.
(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 the following signal by using the CU/PU
signal level of the board EXIT connector 8:
EXIT sensor. Pin-9: EXIT sensor
Confirm that the above signal levels change when
the sensor lever is operated.
(7-1-4) Check the system connection
EXIT sensor cord Confirm that the cables are not pinched, sheathes
are not peeled off, and they are assembled
normally.
7. TROUBLESHOOTING PROCEDURES
Check operation Actions for NG
results
Remove the
jammed paper.
Replace the
sensor lever with
the good sensor
lever.
Replace: the
CU/PU board, or
the EXIT sensor
and its cord or
connection cord.
Replace the
EXIT sensor.
Replace the
connecting
cable and
normalize the
assembled
condition.
234 /