Oki Data CONFIDENTIAL
45850101TH Rev.1
2-67
2. TROUBLESHOOTING PROCEDURES
2.5.5. (6) Motor fan error (Error code: 122, 127, 128, 918)
(6-1) The low voltage power supply fan does not rotate immediately after the power is
turned on.
Check item
Check work
Actions to be taken
at NG
(6-1-1)
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.
(6-2)
Duplex fan does not rotate during the Duplex printing.
Check item
Check work
Actions to be taken
at NG
(6-2-1)
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 fan.
24V fuse F501 of the
Duplex board (GOH-
1 PCB)
Check if the fuse F501 has blown out or not.
Replace the
Duplex board
(GOH-1 PCB).
24V power supplied
to the Duplex board
(GOH-1 PCB).
Check if the fuse F503 of the CU/PU board has
blown out or not.
Replace the CU/
PU board.
(6-3)
All fans of the printer do not rotate.
Check item
Check work
Actions to be taken
at NG
(6-3-1)
24V power supply
CU/PU board fuses
F1, F503
Check if the fuses F1 and F503 are not open-
circuit or not.
Replace the CU/
PU board.
24V power that is
supplied to the CU/
PU board.
Check the power supply voltages at the POWER
connector of the CU/PU board. The follow
voltage must appear respectively.
Pins-9, 10, -11 and -12: 24V
Pins-13, -14, -15 and -16: 0VP
Replace the low
voltage power
supply.
2.5.5. (7) Print speed is slow. (Performance is low.)
(7-1)
Print speed decreases.
Check item
Check work
Actions to be taken
at NG
(7-1-1)
Media Weight setting
Media Weight that is
specified for the print
Check if the wrong Media Weight has been
specified or not.
Correct the
Media Weight.