Oki Data CONFIDENTIAL
45487001TH Rev.1
6-52 /
6. Troubleshooting procedure
Check item Check work
Actions to be taken
at NG
(5-2-4) Check the system connection
Paper feed motor
drive cable
Check the connection condition of the cable.
Check if the connector is connected in
the half-way only or not, and check if the
connector is inserted in a slanted angle or
not.
Check also that cables are assembled without
any abnormality.
Replace the
cable with the
good cable
that normalizes
the connection
condition.
6.5.2.(6) Paper running jam (Error 381)
(6-1) Jamoccursimmediatelyafterthepoweristurnedon.
Check item Check work
Actions to be taken
at NG
(6-1-1) Check condition of the running path.
Paper running path
of the front unit
Check if paper is jammed or not in the paper
running path.
Remove the
jammed paper.
(6-1-2) Check condition of the mechanical parts
Check the sensor
lever of the WR2
sensor.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace the
sensor lever
with the good
sensor lever.
(6-1-3) Check condition of electrical parts
Check the detection
condition of the
sensor signal.
Confirm that the sensor signals are normally
detected by using the SWITCH SCAN
function of the self-diagnostic mode.
Replace either
the PU/CU
board or the
WR2 sensor
or connection
cable.
Check the sensor
lever of the WR2
sensor.
Check for the following signals at the
WR2SNS connector
of the PU/CU board.
Pin-2: WR2 sensor
Confirm that the above signal levels change
when the sensor lever is operated.
Replace the
WR2 sensor
Check the power
voltages supplied
to the WR2 sensor
Check the 5V power at the WR2SNS
connector of the WR2 sensor .
Pin-1: 5V power supply
Pin-3: 0VL
Replace the
connection
cable.
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