Oki C710 - Fuse Check

43856301TH Rev.3
199 /
Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
If the following error is issued, check the corresponding fuse of the CU control board, PU
control board and high voltage power supply board.
(Refer to Table 7-6.)
Table 7-6 Fuse error
7.6 Fuse check
Fuse Name Error Description Insert Point Resistance
PU board
F1 Service call 918
(However, if the Duplex
unit is not installed, it
is the 2nd/3rd hopping
error.)
Duplex, 2nd/3rd 24V
Less than
1 ohm
F2 Power supply shut-
down
PU board 5V
F3 ID UP/DOWN error.
Service call 142
Belt motor, ID UP/DOWN motor
24V
F4 Cover open High voltage power supply
board, ID cooling fan, fuser fan
24V
F5 Service call 122 Power supply fan, feed
solenoid, feed motor 24V
High voltage
power supply
board
IP901 Cover open High voltage 24V
IP902 Service call 121 High voltage 5V
CU board
F506 •
Service call 131 to
134 error
• All white page print
LED HEAD 5V
F505 Service call 131 to 134
error
LED HEAD 3.3V
F501 HDD error HDD 5V
F503 CENTRONIX interface
error
CENTRONIX interface 5V
F502 CENTRONIX interface
error
CENTRONIX interface 3.3V
F507 Host USB error PCI 5V