Oki MB461 Maintenance Manual page 227

Oki Data CONFIDENTIAL
Display Cause
PRESS POWER SU Com- Communication error
SW FOR 5SEC munication between the Controller and
Error : 811 Error the Scanner Unit is detected.
Error : 812
Error : 813
PRESS POWER SU FW It is an error to notify that SU
SW FOR 5SEC Removed FW was erased by special
Error : 814 key operation from a panel.
PRESS POWER SU System Does the error occur again?
SW FOR 5SEC Memory
Error : 890 Overflow
Power OFF/ON CU Disconnect In the situation that
Error : 899 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 A lock error The image drum does not
923 : Error with black revolve properly.
image drum
Does the error display is
provided again by turning off
and on the MFP?
Power OFF/ON Tray-2
933 : Error CPU clock
frequency
error
Power OFF/ON PU Error A PU error was detected.
941 : Error
941 : Watch Doc Timer Error
942 : Error
942 : Detection of Unassigned
943 : Error
943 : CPU Error Detection
Power OFF/ON AC Voltage
Error : 946 Zero-crossing
Error
Inspection is Media jamming Media is jammed by
required. error around entangling around the fuser.
980 : Error 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.
44871001TH Rev.6
Error details Measure
Turn off and on the
MFP.
Yes Turn off and on the
MFP.
Replace the SU board
Be sure the image
drum is properly
installed properly.
Yes Replace the image
drum unit.
Yes Replace the image
drum motor.
Turn off and on the
MFP.
When this error occurs
again, replace the CU/
Interruption
PU board.
Turn off the MFP.
Replace the fuser.
8. TROUBLESHOOTING PROCEDURES
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