Oki MC760 User Manual

45376001TH Rev.1
186 /
Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
7.5.4. (12) Motor fan error (error code C0A2, C0A1, C0A5, C0A6)
(12-1) The low voltage power supply fan does not rotate immediately after the power is turned on.
Check item Check work
Action to be taken
at NG
(12-1-1) Cable connection condition and wiring condition
Cable connection
condition and wiring
condition of the
low voltage power
supply fan and those
of the fuser fan
Check if the connectors are connected normally
or not.
Check if extra length of the cables does not
touch the fan blade or not.
Correct the
connection
condition of
the connectors.
Correct the
cable wiring
route. Replace
the fan.
(12-2) Duplex fan does not rotate during the Duplex printing.
Check item Check work
Action to be taken
at NG
(12-1-2) Cable connection condition and wiring condition
Cable connection
condition and wiring
condition of the
Duplex fan
Check if the connectors are connected normally
or not.
Check if extra length of the cables does not
touch the fan blade or not.
Correct the
connection
condition of
the connectors.
Correct the
cable wiring
route. Replace
the Duplexunit.
24V fuse F501 of the
Duplex board (GOH-
10 PCB)
Check if the fuse F501 has blown out or not. Replace the
Duplexunit.
24V power supplied
to the Duplex board
(GOH-10 PCB).
Check if the fuse F1 and F4 of the PU board has
blown out or not.
Replace the
PU board.
(12-3) All fans of the printer do not rotate.
Check item Check work
Action to be taken
at NG
(12-3-1) 24V power supply
PU board fuses Check if the fuse F5 and F8 are not open-circuit
or not.
Replace the PU
board.
24V power that is
supplied to the PU
board.
Check the power supply voltages at the POWER
connector
of the PU board. The follow voltage
must appear respectively.
PU
⑦
Pin 1,2,3,4:24V
Pin 5,6,7,8:0VP
Replace the low
voltage power
supply.

Oki MC760 Specifications

General

Brand	Oki
Model	MC760
Category	Printer
Language	English