Oki MB461 - Page 227

Oki Data CONFIDENTIAL
44871001TH Rev.6
8-35
8. TROUBLESHOOTING PROCEDURES
Display Cause Error details Measure
PRESS POWER
SW FOR 5SEC
Error : 811
Error : 812
Error : 813
SU Com-
munication
Error
Communication error
between the Controller and
the Scanner Unit is detected.
Turn off and on the
M F P.
PRESS POWER
SW FOR 5SEC
Error : 814
SU FW
Removed
It is an error to notify that SU
FW was erased by special
key operation from a panel.
PRESS POWER
SW FOR 5SEC
Error : 890
SU System
Memory
Overflow
Does the error occur again? Yes Turn off and on the
M F P.
Replace the SU board
Power OFF/ON
Error : 899
CU Disconnect In the situation that
communication between
CU and SU was able to
establish, SU FW detected
that CU FW had disappeared
from a communications path
(an USB line).
Power OFF/ON
923 : Error
A lock error
with black
image drum
The image drum does not
revolve properly.
Does the error display is
provided again by turning off
and on the MFP?
Yes
Yes
Be sure the image
drum is properly
installed properly.
Replace the image
drum unit.
Replace the image
drum motor.
Power OFF/ON
933 : Error
Tray-2
CPU clock
frequency
error
Power OFF/ON
941 : Error
942 : Error
943 : Error
PU Error A PU error was detected. Turn off and on the
M F P.
When this error occurs
again, replace the CU/
PU board.
941 : Watch Doc Timer Error
942 : Detection of Unassigned
Interruption
943 : CPU Error Detection
Power OFF/ON
Error : 946
AC Voltage
Zero-crossing
Error
Inspection is
required.
980 : Error
Media jamming
error around
fuser.
Media is jammed by
entangling around the fuser.
Turn off the MFP.
Replace the fuser.
Note! With the MFP’s temperature not more than 0ºC, Service call errors 168 Error,
171 Error, 175 Error, 903 Error and 904 Error may occur. After turn off the
MFP, turn on the MFP after the MFP warms.