Oki Data CONFIDENTIAL
42615101TH Rev.8 210 /
(5-4)Paper path jam occurs right after reaching the fuser unit
Fuser Motor
Fuser Motor Driver
Heat Roller Detection
Temperature
Fuser Unit
Confirmation Tasks
Confirm that a fuser motor operates correctly with Motor &
Clutch test of the Self-diagnostic Mode.
Check with the presence of the load.
Remove HEAT connector of the driver board (PRM PCB) and
check the followings at the connector side.
"n"M‰ between 1pin-FG
"n"M‰ between 2pin-FG
"n"M‰ between 3pin-FG
"n"M‰ between 4pin-FG
Check detection temperature of the heat roller in the
Self-diagnostic Mode and that irregular low or high temperature
is not detected.
Confirm that a fuser unit is correctly installed.
(whether it is pushed to the most inferior point)
Action at NG
Exchange the motor
driver board
(PRM PCB).
Exchange the fuser
motor or fuser unit.
Use FUSE KEEP
MODE of the system
maintenance menu
when using a new fuser
unit as a test.
Exchange a motor
driver board (PRM
PCB).
Exchange a fuser unit
or PU board
(PRN PCB).
Use FUSE KEEP
MODE of the system
maintenance menu
when using a new fuser
unit as a test.
Install to a device
(5-4-1)Confirm status of the motor operation
(5-4-2)Temperature control of revolving speed of the roller
(5-4-3)Confirm status of the fuser unit installation
Confirmation Items
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