Oki MB461 - 8.6 Fuse Checking

Oki Data CONFIDENTIAL
8. TROUBLESHOOTING PROCEDURES
44871001TH Rev.6
8-73
8.6 Fuse Checking
Table 7-6 MB441/MB451/MB451w/MB461/MB461+LP/MB471/MB471w/MB491/MB491+/
MB491+LP/ES4161 MFP/ES4191 MFP/MPS4200mb/MPS4700mb Fuse Errors
Fuse Name Error Description Insert Point Resistance
CU/PU board
(98M)
F1 Service Call 122 Fuser fan, power fan, ID unit,
2nd tray
1
Ω
or less
F2 Stop with displaying the
OKI LOGO
High voltage board, sensor,
duct fan, LED head, USB hub,
wireless LAN board, 2nd tray
F3 No Error FDI (not used)
F4 No Error USB IC card (not used)
F5 No display on the
operator panel
CU/PU. ROM, DRAM, SU
board, LED head
F501 Power OFF/ON 923
Error
DC motor logic, regist clutch,
hopping clutch, MPT clutch,
EXIT motor
F502 No Error, but unusable
printing (blank page)
LED head assy
SU board
(MHE)
F1 No display on the
operator panel
MFA, DRAM, FAX board, OPE
board
F2 unusable ADF copy and
display "Document Jam",
but usable FB copy
CIS, solenoid, clutch, FAX
board
F3 Service Call "Power
OFF/ON Carridge Error
<02>"
ADF motor, FB motor
F4 Service Call "Lamp Error
Please call service.
<01>"
CIS：3.3VC_LDO：
F5 No display on the
operator panel
3.3V_DCDC, FAX board, OPE
board