Error Caused By The Defective Mechanism; Fuse Cut Error (Error Codes C3Ea,C3Eb,C3Ec,C3Ed,,C3E2,C4C0); Fuse Cut Error - Oki MC760 Maintenance Manual

(16-3) Error caused by the defective mechanism

Check item
(16-3-1) 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.
(16-3-2) 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.
Action 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
board or the ID
motor.
7.5.4. (17) Fuse cut error (error codes C3EA,C3EB,C3EC,C3ED,C3E2,C4C0)

(17-1) Fuse cut error

Check item
(17-1-1) Check the system connection
FFC connecting the Check if the connector is connected in the half-
PU board and the way only or not, and is inserted in a slanted angle
toner sensor board or not at the SSNS connector
(PRZ PCB) and at the SSNS connector
board (PRZ PCB).
Check if FFC has open-circuit of sheath of the
FFC has not peeled off or not.
(17-1-2) Fuse cut circuit
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.
7. Troubleshooting and repair procedure
Action to be taken
Check work
at NG
Connect the
FFC normally.
of the PU board, Alternately,
of the toner sensor replace the FFC.
Replace the PU
board.
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