16) Fuse Cut Error (Errors 155); Fuse Cut Error (Errors 155); Error Caused By The Defective Mechanism - Oki B721 Maintenance Manual

Oki Data CONFIDENTIAL
(15-3)

Error caused by the defective mechanism

Check item
(15-3-1) Mechanical load applied to the ID unit
ID unit Check if a heavy mechanical load is being
applied to the ID unit due to breakage of the
waster toner belt, or not.
(15-3-2) Motor operating condition
ID motor Confirm that the respective ID motors work
normally or not by using the Motor & Clutch
Test of the self-diagnostic mode.
Check if any extra load exists or not.
45487001TH Rev.1
Actions to be taken
Check work
at NG
Replace the ID
unit.
If any attempt
of using new
ID unit as a
trial is going
to be made,
be sure to use
the System
Maintenance
Menu FUSE
KEEP MODE.
Replace the
PU/CU board
or the ID motor.

6.5.2.(16) Fuse cut error (Errors 155)

(16-1) Fuse cut error
Check item
(16-1-1) Check the system connection
Cable connecting Check if the HEAT connector
the PU/CU board board is connected halfway, or inserted at an
angle.
Check if cable has open-circuit or its sheath is
peeled off.
(16-1-2) Fuse cut circuit
PU/CU board Upon completion of the system connection
check, turn off the power once and back on.
The check if the error occurs or not.
6. Troubleshooting procedure
Actions to be taken
Check work
at NG
of the PU/CU Connect the
cable normally.
Alternately,
replace the
cable.
Replace the
PU/CU board.
6-63 /