Oki Data CONFIDENTIAL
45487001TH Rev.1
6-29 /
6. Troubleshooting procedure
Panel display Cause Check details
Result
Solution
Power Off/On
943: Error
PU CPU ran away
out of control due to
noise etc.
Does error reoccur? Ye s
Power Off/On.
Replace the PU/
CU board.
Power Off/On
944: Error
An error was
detected with
accessing the Dcon
circuit.
Does error reoccur? Ye s
Power Off/On.
Replace the PU/
CU board.
Power Off/On
945: Error
SDRAM access at
power on failed. Does error reoccur? Ye s
Power Off/On.
Replace the PU/
CU board.
Power Off/On
947: Error
EMF Missing Error
Does error reoccur? Ye s
Power Off/On.
Replace the PU/
CU board.
Power Off/On
948: Error
Detect hopping
motor rotate error
Error occurred when
hopping motor error
detected
Power Off/On.
Service Call
982: Error
Unsupport Tray
Error
Are many trays beyond
the specification
installed?
Ye s Use trays as many
as specified.
Service Call
984: Error
Black Tag Version
Mismatch Does error reoccur? Ye s
Power Off/On.
Replace the toner
cartridge, the
image drum or
Print Cartridge.
Service Call
999: Error
The PU/CU firmware
has a problem with
its compatibility.
Power off/on
F0C: Error
PC:nnnnnnnn
LR:nnnnnnnn
FR:nnnnnnnn
An error was
detected of the CU
program.
Does error reoccur? Ye s
After turn power
OFF, check
connections
between CU board
and PU board.
Then turn power
ON again.
Replace the PU/
CU board.
Panel display Cause Check details
Result
Solution
Power off/on
FFF: Error
PC:nnnnnnnn
LR:nnnnnnnn
FR:nnnnnnnn
An error was
detected of the CU
program.
Does error reoccur? Ye s
After turn power
OFF, check
connections
between CU board
and PU board.
Then turn power
ON again.
Replace the PU/
CU board.
Note) Service call errors, Error: 169, Error: 171, Error: 172, Error: 173, Error: 903 and
Error: 904, can occur when the printer temperature is under 0°C; therefore, if
the printer temperature is low, turn on the printer after the printer temperature
has risen enough.
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