Oki MC873dn - Error Caused by the Defective Mechanism; Fuse Cut Error (Error Code: 154 and 155); Fuse Cut Error

Oki Data CONFIDENTIAL
45850101TH Rev.1
2-70
2. TROUBLESHOOTING PROCEDURES
(10-3) Error caused by the defective mechanism
Check item Check work
Actions to be taken
at NG
(10-3-1) 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.
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.
(10-3-2) 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.
Replace the CU/
PU board or the
ID motor.
2.5.5. (11) Fuse cut error (Error code: 154 and 155)
(11-1) Fuse cut error
Check item Check work
Actions to be taken
at NG
(11-1-1) Check the system connection
FFC connecting the
CU/PU board and
the P6Z board (P6Z
PCB)
Check if the RELAY connector of the CU/PU
board or PUIF connector of P6Z board (P6Z PCB)
is connected halfway, or inserted at an angle.
Check if FFC has open-circuit or its sheath is
peeled off.
Connect the
FFC normally.
Alternately,
replace the FFC.
(11-1-2) Fuse cut circuit
CU/PU board Upon completion of the system connection check,
turn off the power once and back on. The check if
the error occurs or not.
Replace the CU/
PU board.