Oki C5650 Maintenance Instructions Manual page 176

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