Oki C710 Maintenance Manual page 144

Oki Data CONFIDENTIAL
Display Cause
Restart the printer. Engine I/F
Error.
072: Error. Xx
I/F error
between PU
and CU
Restart the printer. Video Error
Error is
073: Error xxxxxxxx
detected
when
expanding
the video
data.
(Illegal data
is received.)
Restart the printer. Video Error
Error is
074: Error xxxxxxxx
detected
075: Error xxxxxxxx
when
expanding
the video
data.
43856301TH Rev.3
Error details Remedial measure
Is the CU assembly installed No Re-install the CU
normally? assembly normally.
Yes Replace the CU
board.
Does the printer recover from No Replace the PU
the error when the CU board is board.
replaced?
Is the CU assembly installed No Re-install the
normally? CU assembly
normally.
Yes Change the PC
with another
PC having high
specifications, or
alternately reduce
resolution power
and execute the
print again.
Does this error recur? Yes Replace the CU
board.
Replace the
interface cable.
Re-install the PC
printer driver.
Is the CU assembly installed No Re-install the
normally? Yes CU assembly
normally.
Execute the print
again.
Does this error recur? Yes Print any other
data.
Does the error depend on print No Replace the CU
data? board.
Yes Send the data to
design division and
request analysis of
the data.
Is the CU assembly installed No Re-install the CU
assembly normally.
normally?
Yes Replace the CU
board.
Display Cause
Service call Parameter Either EEPROM or Flash ROM
integrity cannot read/write normally.
081: Error
check
Service call Read/write
Does this error recur?
error of
104: Error
the engine
EEPROM is
detected.
Service call Engine
control logic
106: Error
has an error.
Does this error recur?
Service call Duplex unit Is the duplex unit for that
for other specific model installed?
111: Error
model is
detected.
Service call 2nd tray for Is the 2nd tray for that specific
other model model installed?
112: Error
is detected.
Service call High voltage Is the cable connecting the PU
power supply board to the high voltage unit
121: Error
interface connected normally?
error. Have you checked defective
contact of contactor points?
Note)
Service call Low voltage Is the fan (bottom right of the
power supply front) of the low voltage power
122: Error
fan error supply block working?
Is the fan connector connected
normally?
7. Troubleshooting and repair procedure
Error details Remedial measure
Turn the printer
power off and
then back on.
If the error
symptom remains
unchanged,
replace the CU
board.
Turn off the power
of the printer and
Yes
back on.
Replace the PU
board.
Turn off the power
of the printer and
back on.
Yes Replace the PU
board.
No Install the correct
duplex unit.
No Install the correct
2nd tray.
No Re-connect them
normally.
Yes Check for defective
contact of the high
voltage system.
No Replace the high
voltage power
supply.
No Check for sure
connection of the
fan connector.
Yes Replace the PU
board.
No Replace the fan
motor.
Yes Replace the PU
board.
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