45530603TH Rev.2
4-64
Oki Data CONFIDENTIAL
4. TROUBLESHOOTING PROCEDURE
4.5.2.(5) Feed jam (Error 380)
(5-1) Jam occurs immediately after the power is turned on.
Check item Check work
Actions to be taken
at NG
(5-1-1) Check condition of the paper running path
Paper running path
in the vicinity of the
right side cover
Open the right side cover to check for jammed
paper in the paper running path.
Remove the
jammed paper.
(5-1-2) Check condition of the mechanical parts
Check the sensor
lever of the paper
entrance sensor 2.
C heck if shape and movement of the sensor
levers have any abnormality or not.
Replace with a
normal sensor
lever.
(5-1-3) 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 the
PU/CU PCB
or connection
cable.
(5-2) Jam occurs immediately after the paper feed is started.
Check item Check work
Actions to be taken
at NG
(5-2-1) Check condition of the paper running path
Paper running path
near the right side
cover
Check if paper is jammed or not in the paper
running path.
Remove the
jammed paper.
(5-2-2) Check condition of the mechanical parts
Check the sensor
lever of the paper
entrance sensor
2 and the paper
entrance sensor 3.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace with a
normal sensor
lever.
(5-2-3) Motor operation check
Hopping motor Confirm that the hopping motor works
normally by using the Motor & Clutch Test of
the self-diagnostic mode.
Replace the
PU/CU PCB or
hopping motor.
Hopping motor
driver
Remove the HOPM connector of the PU/CU
PCB and check the following at the connector
side.
1 M
:
or more between pin-1/-2/-3/-4 and FG.
Replace the PU/
CU PCB.
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