Paper Path Jam Occurs Right After Feeding Paper - Oki C5500 Maintenance Manual

(5-2)Paper path jam occurs right after feeding paper

Confirmation Items
(5-2-1) Check of state of running route
Paper running route on the belt
(5-2-2) Check of state of mechanical parts
Check the sensor lever of the
WR sensor
(5-2-3) Check of operating state of motors
Feed motor, belt motor, ID
motor
Feed motor driver, ID up-
motor driver, and belt motor
driver
43085101TH Rev.1
Confirmation Tasks
Remove the ID unit, and check to see if there is paper jammed
on the running route.
Check to see if the sensor lever demonstrates any abnormal
shape or motion.
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.
Unplug the HOP connector of the PU PCB (PRX 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 (PRX 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
Oki Data CONFIDENTIAL
Action at NG
Remove the jammed
paper.
Replace the sensor
lever with a normal
one.
Replace the PU PCB
(PRX 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.
Replace the PU PCB
(PRX PCB), if the feed
motor, belt motor, ID
up-motor or ID motor is
faulty.
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