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Oki Data CONFIDENTIAL
44158801TH Rev.2
243 /
(5-2) Paper path jam occurs right after feeding paper
Confirmation Items
Confirmation Tasks
Action at NG
(5-2-1) Check of state of running route
Paper running route on the
belt
Remove the ID unit, and check to see if there is paper
jammed on the running route.
Remove the jammed
paper.
(5-2-2) Check of state of mechanical parts
Check the sensor lever of
the WR sensor
Check to see if the sensor lever demonstrates any
abnormal shape or motion.
Replace the sensor
lever with a normal
one.
(5-2-3) Check of operating state of motors
Feed motor, belt motor, ID
motor
Conduct the Motor and Clutch Test of the self-diagnostic
mode, and check to see if the feed motor, belt motor and
ID motor operate normally.
Make this checking in the presence and absence of a
load.
Replace the PU
PCB (PRF PCB), if
the feed motor, belt
motor, ID-up motor
or ID motor is faulty.
Replace the feed
motor, belt motor or
ID motor. Replace
the ID unit or belt
unit. To use a new
consumable on a
trial basis, use FUSE
KEEP MODE of the
System Maintenance
Menu.
Feed motor driver, ID up-
motor driver, and belt motor
driver
Unplug the HOP connector of the PU PCB (PRF PCB),
and confirm the following on the connector side:
Several Mohms between pin 1 and FG
Several Mohms between pin 2 and FG
Several Mohms between pin 3 and FG
Several Mohms between pin 4 and FG
Unplug the BELTIDUP connector of the PU PCB (PRF
PCB), and confirm the following on the connector side:
Several Mohms between pin 1 and FG
Several Mohms between pin 2 and FG
Several Mohms between pin 3 and FG
Several Mohms between pin 4 and FG
Several Mohms between pin 5 and FG
Several Mohms between pin 6 and FG
Several Mohms between pin 7 and FG
Several Mohms between pin 8 and FG
Replace the PU
PCB (PRF PCB), if
the feed motor, belt
motor, ID up-motor
or ID motor is faulty.