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7.5.2.(3)
Paper Feed Jam(Error 391:1st Tray)
(3-1)Paper feed jam occurs right after turning on the power (1st Tray)
Confirmation Items
(3-1-1) Check of state of running route
Paper running route in front
unit
(3-1-2) Check of state of mechanical parts
Check the sensor levers of
inlet sensors 1 and 2.
(3-1-3) Check of electrical parts
Check the state of sensor
signal detection.
Check the output levels of
inlet sensors 1 and 2
Check the power supply of
the front sensor PCB (RSF
PCB).
(3-2)Paper feed jam occurs right after paper feeding starts (1st Tray)
Confirmation Items
(3-2-1) Check of state of running route
Paper running route in front unit
(3-2-2) Check of state of mechanical parts
Check the sensor levers of
inlet sensors 1 and 2.
43085101TH Rev.1
Confirmation Tasks
Open the front cover, and check to see if there is paper jammed
on the running route.
Check to see if the sensor levers demonstrate any abnormal
shape or motion.
Use the SWITCH SCAN function of the Maintenance Menu to
check to see if the sensor signal is detected normally.
Check the following signals through the FSNS connector of the
PU PCB (PRX PCB).
Pin 4: Inlet sensor 1
Pin 3: Inlet sensor 2
Confirm that the above signal levels vary as the sensor levers
are actuated.
Check the 5-V power through the CN connector of the front
sensor PCB (RSF PCB).
Pin 5: 5V power
Pin 1: 0VL
Confirmation Tasks
Check to see if there is paper jammed on the running route.
Check to see if the sensor levers demonstrate any abnormal
shape or motion.
Oki Data CONFIDENTIAL
Action at NG
Remove the jammed
paper
Replace the sensor
lever with a normal
one.
Replace the PU PCB
(PRX PCB), front
sensor PCB (RSF
PCB) or the connection
cord.
Replace the front
sensor PCB (RSF
PCB).
Replace the connection
cord.
Action at NG
Remove the jammed
paper.
Replace the sensor
lever with a normal
one.
192 /
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