Oki MC561 Maintenance Manual page 207

Oki Data CONFIDENTIAL
Display Cause
Power OFF/ON Video error. Is the CU/PU board installed
073 : Error ** An error was properly?
detected in
expanding
image data (an
invalid data
was received) Does the error occur again?
Is the CU/PU board installed
properly?
Does the error occur again?
Does the error depend on
print data?
Power OFF/ON Video error. Is the CU/PU installed
074 : Error An error was properly?
075 : Error ** detected in
expanding
image data.
Inspection is Parameter Reading from or writing into
required. matching EEPROM or flash memory
081 : Error check error cannot be made properly.
Inspection is An engine
required. EEPROM
104 : Error read/write Does the error occur again?
error was
detected.
Inspection is Engine control
required. logic error
106 : Error Does the error occur again?
44473001TH Rev.1
Error details Measure
No Reinstall it properly.
Yes Change the PC to a
high-specification one
or decrease the
resolution, and
perform printing again.
Yes Replace the CU/ PU
board.
Replace the interface
cable.
Reinstall the PC
printer driver.
No Reinstall it properly.
Yes Perform printing
again.
Yes Print other data.
No Replace the CU/PU
board.
Yes Ask design people to
analyze the data.
No Reinstall it properly.
Yes Replace it.
Turn off and on the
MFP.
Replace the CU/PU
board when the
symptom persists.
Turn off and on the
MFP
Yes Replace the CU/PU
board.
Turn off and on the
MFP
Yes Replace the CU/PU
board.
Display Cause
Inspection is The 2nd tray Is the 2nd tray for the MFP
required. for a model installed?
112 : Error different from
the MFP was
detected.
Inspection is High-voltage Is the cable between the CU/
required. power supply PU board and the high-
121 : Error interface error voltage power unit connected
properly?
Is a contact faulty?
Inspection is Rear-fan error Does the fan at the rear of
required. the MFP operate?
122 : Error
Is the connector of the fan
connected properly?
Inspection is Ambient Is the cable from the CU/PU
required. humidity board to the toner sensor
123 : Error error or non board connected properly?
connection
of humidity
sensor
Inspection is Ambient Is the cable from the CU/PU
required. temperature board to the toner sensor
124 : Error error board connected properly?
Inspection is Image drum Is the connector of the fan
required. fan error connected properly?
128 : Error Does the error occur again?
05
Inspection is Front fan error Is the connector of the fan
required. connected properly?
128 : Error Does the error occur again?
08
7. TROUBLESHOOTING PROCEDURES
Error details Measure
No Install proper 2nd tray.
No Reconnect it properly.
Check the high-
Yes voltage line for no
poor connection.
No Replace the high-
voltage power supply.
No Be sure of the
connection of the
fan.
Yes Replace the CU/PU
board.
No Connect the fan
properly.
Yes Replace the CU/PU
board.
No Re-connect it properly.
Yes Replace the toner
sensor board.
No Re-connect it properly.
Yes Replace the toner
sensor board.
No Re-connect it properly.
Yes Replace the fan motor.
No Replace the CU/PU
board.
No Re-connect it properly.
Yes Replace the fan motor.
No Replace the CU/PU
board.
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