45530603TH Rev.2
4-62
Oki Data CONFIDENTIAL
4. TROUBLESHOOTING PROCEDURE
Error Code: 384, 651
(1) Open the left side cover.
4.5.2.(4) Paper feed jam (Error 391: 1st Tray).
(4-1)
Jam occurs immediately after the power is turned on. (1st tray)
Check item
Check work
Actions to be taken
at NG
(4-1-1) Check condition of the paper running path
Paper running path
of the 1st tray unit
Open the side cover of the 1st tray unit to
check for jammed paper in the paper running
path.
Remove the
jammed paper.
(4-1-2) Check condition of the mechanical parts
Check the sensor
lever of the 1st tray
paper entrance
sensor.
Check if shape and movement of the sensor
levers have any abnormality or not.
Replace with a
normal sensor
lever.
(4-1-3) 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,
cassette sensor
relay board,
or connection
cable.
Check the power
voltages supplied
to the cassette
sensor relay board.
Check whether the signal level at pin-2
of TRYSNS of the PU/CU PCB changes
depending on the presence of paper.
Replace the
connection
cable.
(2) Slowly remove the remaining paper.
(3) Close the left side cover.