Fuse Check - Oki MC760 Maintenance Manual

Oki Data CONFIDENTIAL

7.6 Fuse check

If the following error is issued, check the corresponding fuse of the PU/SU control board
and high voltage power supply board.
(Refer to Table 7-6.)
Table 7-6 Fuse error
Error Description
Fuse
Name
When booting After boot up
F1 No error. Scanner,copy,printer not
work
L C D d i s p l a y s
warimng Up.
F2 It repeats boot start
F4 It remains the boot
screen
F5 S/C:C0A2
PU
F6 No error, Boot
board
normaly
F7 S/C:C05A
F8 S/C:CE82
F9 No error Scanner works normally.
printer:miss-print(white
paper)
F10 No error Scanner ,copy,printer
works normally
F1 No error ADF not work, Flatbed
scanner works normally
F2 Attention lamp Scanner,copy,printer not
turns on. work
SU
3 beeps sound.
board
Booting looks
normally, but it does
not work.
F3 It remains the boot
screen.
45376001TH Rev.1
Insert Point Resistance
Duplex,2nd/3rd/4th tray
+24V
↑
3.3V DC power
↑
Duplex,2nd/3rd tray
+5V
↑
Interlock,low power
supply, Fuser fan
↑
Hopping clutch,pulse
motor
↑
clutch,ID FAN,+24V
↑
LED Head +3.3V
Less than
LED Head +5V 1 Ω
Stapler +24V
ADF motor +24V
Flatbed
motor,Clutch,solenoid
↑
SU Controller
7. Troubleshooting and repair procedure
200 /