Paper Feed Jam (Error Code 391: 1St Tray); Jam Occurs Immediately After The Power Is Turned On. (1St Tray) - Oki MC362w Maintenance Manual

Oki Data CONFIDENTIAL

7.5.5. (3) Paper feed jam (error code 391: 1st tray)

(3-1) Jam occurs immediately after the power is turned on. (1st tray)

Check item
(3-1-1) Check condition of the paper running path
Paper running path Open the front cover check if paper is not
of the front unit jammed in the paper running path.
(3-1-2) Check condition of the mechanical parts
Hopping sensor Check the sensor lever shapes and
and IN sensor lever operations for any problem.
check
(3-1-3) 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.
Hopping sensor and Check the following signals by using the
IN sensor output CU/PU board HPSNS
level check
connector
HPSNS pin 2: Hopping sensor
RGSNS pin 5: IN sensor
Check that the above signal levels are
changed by operating the levers of the
sensors.
44952001TH Rev.2
Checking method Action in case of NG
Remove the jammed
paper.
Replace the sensor
lever(s) with proper
one(s).
Replace the CU/PU
board, or appropriate
sensor(s) or
connection cord(s)
Replace the CU/PU
⑮
and RGSNS board.
⑯
:
(3-2) Jam occurs immediately after the paper feed is started. (1st tray)
Check item Checking method
(3-2-1) Check condition of the paper running path
Paper running path Check if paper is jammed or not in the paper
of the front unit running path.
(3-2-2) Check condition of the mechanical parts
Hopping sensor Check the sensor lever shapes and
and IN sensor lever operations for any problem.
check
Check the separator Check if any foreign materials such as paper
assemblies of the dust on the surface of the feed roller or of
feed roller, the the pickup roller or not.
pickup roller and the
Check if the feed roller or the pickup roller
tray.
has worn out or not.
(3-2-3) Motor operation check
Paper feed motor Confirm that the paper feed motor works
normally by using the Motor & Clutch Test of
the self-diagnostic mode.
Paper feed motor
Pull out the CU/PU board HOP connector
driver
and check the following at the side of the
connector.
Several M between pin-1 – FG.
Several M between pin-2 – FG.
Several M between pin-3 – FG.
Several M between pin-4 – FG.
7. TROUBLESHOOTING PROCEDURES
Action in case of NG
Remove the jammed
paper.
Replace the sensor
lever(s) with proper
one(s).
Remove the foreign
material.
Replace the separator
assemblies of the feed
roller, pickup roller
and tray.
Replace the CU/PU
board or the paper
feed motor.
①
Replace the CU/PU
,
board.
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