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Oki Data CONFIDENTIAL
43827101TH Rev.2
176 /
Table 7-1-2 Service Call Error (1/7)
Service call
001:Error
Power off/on
002:Error
~
005:Error
006:Error
007:Error
service
020:Error
Service call
025:Error
Service call
030:Error
Service call
031:Error
Service call
036:Error
Service call
040:Error
Service call
041:Error
Is the error issued again?
Does error display reappear?
A font ROM hash check error was
detected.
(On printers for domestic market
only)
Does error display reappear?
Is RAM DIMM set properly?
Is error recovered by replacing RAM
DIMM?
Is a genuine RAM DIMM in use?
Is the RAM DIMM installed
properly?
Is the fault recovered when the RAM
DIMM is replaced?
Does error display reappear?
Does error display reappear?
Machine Check
Exception
Hardware fault
detected. (Board
defectiveness or
Shortage of power
supply volume)
CPU Exception
CU ROM Hash
Check Error
CU Font ROM Hash
Check Error
CU RAM Check
Error
CU Optional RAM
Check Error
RAM Spec Error
Unsupported DIMM
specification of the
CU RAM
CU EEPROM Error
CU Flash Error
Flash ROM Error on
the CU PCB.
Yes
Yes
Yes
Yes
No
Yes
No
No
No
Yes
No
Yes
Yes
Error Description
Message
Cause
Solution
Replace PDL CU PCB.
If RAM DIMM is installed,
remove it, and turn the
power off and on again.
Replace the CU PCB.
Install the RAM DIMM again.
Replace the RAM DIMM.
Power OFF/ON
Replace CU PCB.
Power OFF/ON
Replace PDL CU PCB.
Power OFF/ON
Replace CU PCB.
Reset RAM DIMM.
Replace RAM DIMM.
Replace CU PCB.
Use genuine RAM DIMM.
Reset RAM DIMM.
Replace RAM DIMM.
Replace PDL CU PCB
Power OFF/ON
Replace PDL CU PCB
Power OFF/ON
Replace CU PCB