Oki Data CONFIDENTIAL
43827101TH Rev.2
202 /
7.5.2.(5)
Paper Path Jam(Error 381)
(5-1)Paper path jam occurs right after turning on the power
Paper running route in front
unit
Check sensor levers of WR
sensor
Check the state of sensor
signal detection.
Check the output level of the
WR sensor.
Check the power supply of
the front sensor PCB.
Confirmation Tasks
Check to see if there is paper jammed on the running route.
Confirm that there is no abnormality in the shape of the sensor
lever and in the operation.
Use the SWITCH SCAN function of the self-diagnostic mode to
check to see if the sensor signal is detected normally.
Check the following signal through the FSNS connector of the
PU PCB. Pin 2: WR sensor
Confirm that the above signal level varies as the sensor lever is
actuated.
Check 5V power with CN connector of a front sensor PCB.
5pin:5V Power
1pin:0VL
Action at NG
Remove the jammed
paper.
Replace the sensor
lever with a normal
one.
Replace the PU PCB,
front sensor PCB or
connection cord.
Replace the front
sensor PCB.
Replace the connection
cord.
(5-1-2) Check of state of mechanical parts
(5-1-1) Check of state of running route
(5-1-3) Check of electrical parts
Confirmation Items