44346001TH Rev.1
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Oki Data CONFIDENTIAL
7. TROUBLESHOOTING
If any of the following errors occurs, check relevant fuses on the CU control board, the PU
control board and the high-voltage power supply board.
7.6 Fuse check
C530/C330 Fuse Errors
Fuse Name
Error Description
Insert Point
Resistance
CU/PU board
(CLP-2/-1
board)
F2
Service call 128
Error 08
Front fan, hopping motor,
registration clutch, hopping clutch,
MPT clutch, Duplex clutch
1 or
less
F4
Service call 122
Rear fan, hopping motor,
registration clutch, hipping clutch,
MPT clutch, Duplex clutch
F6
Cover open
High-voltage board, ID fan, belt
motor
F3
• Service call 121
• The operator panel
backlight blackout
PU 5V
F5
No display on the
operator panel
CU/PU 3.3V
F501
• Service call 131 to
134
• Blank page printing
LED head 5V
High-voltage
board (ORZ
board)
F501
Service call 121
High-voltage board 24V
C510/C310 Fuse Errors
Fuse Name
Error Description
Insert Point
Resistance
CU/PU board
(SOS-2/-1
board)
F2
Service call 128
Error 08
Front fan, hopping motor,
registration clutch, hopping clutch,
MPT clutch, Duplex clutch
1 or
less
F4
Service call 122
Rear fan, hopping motor,
registration clutch, hipping clutch,
MPT clutch, Duplex clutch
F5
Cover open
High-voltage board, ID fan, belt
motor
F3
• Service call 121
• The operator panel
backlight blackout
PU 5V
F7
No display on the
operator panel
CU/PU 3.3V
F6
• Service call 131 to
134
• Blank page printing
LED head 5V
High-voltage
board (ORZ
board)
F501
Service call 121
High-voltage board 24V