Oki Data CONFIDENTIAL
43967002TH Rev. 1
341 /
7. Troubleshooting
7.5.2.(12) Motor fan error (error code 122, 127, 051)
(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) Wiring conditions of the cables
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.
Reconnect 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
(12-1-1) Wiring conditions of the cables
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.
Reconnect the
connectors. Correct
the cable wiring
route.
Replace the fan.
24V fuse F501 of
the Duplex PCB
(V7Y PCB)
Check if the fuse F501 has blown out or
not.
Replace the Duplex
PCB (V7Y PCB).
24V power supplied
to the Duplex PCB
(V7Y PCB).
Check if the fuse F1 of the PU PCB has
blown out or not.
Replace the PU
PCB.
(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 PCB fuses F2,
F4
Check if the fuses F2 and F4 are not open-
circuit or not.
Replace the PU
PCB.
24V power that is
supplied to the PU
PCB.
Check that power supply circuit has no
short-circuit at the POWER connector of
the POWER PCB.
Pin-4, -5, -6: 24V
Pin-8: 0VL
Pin-1, -2, -3: 0VP
Replace the low
voltage power
supply unit.
7.5.2.(13) Print speed is slow. (Performance is low.)
(13-1) Print speed decreases.
Check item
Check work
Action to be taken at NG
(13-1-2) 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.