44205401TH Rev.1
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Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
Display Cause Error details Remedial measure
Re-start the printer.
918: Error
Duplex
FAN Alarm
Caution
Fan error inside the Duplex unit.
Does the error recur when the
power is turned off once and
back on?
Does the error recur when the
power is turned off once and
back on?
Yes
Yes
Check if the Duplex
unit is installed
normally or not.
Check if the fans
are installed
normally or not.
Replace the fan.
Re-start the printer.
923: Error
Black image
drum lock
error
The K ID does not rotate
normally.
Does the error display recur
when the power is turned off
once and back on?
Yes
Yes
Check if the K ID is
installed normally
or not.
Replace the K ID
unit.
Replace the K ID
motor.
Service call
928: Error
Fuser motor
lock error
Fuser does not rotate normally.
Does this error recur?
Yes
Yes
Check if the
fuser is installed
normally or not.
Replace the fuser.
Replace the fuser
motor.
Service call
980: Error
Media
wrapped
around the
fuser error
Media has wrapped around the
fuser.
Turn off the power.
Replace the fuser.
Service call
982: Error
4th tray
detection
error
The 4th tray is installed. Remove the 4th
tray.
Service call
983: Error
Error due
to detection
of the toner
cartridges
of the same
color
Two or more toner cartridges of
the same color are detected.
Install the cartridge
of the specified
in the specified
position.
Display Cause Error details Remedial measure
Service call
984: Error~
987: Error
Detection
of an
unsupported
toner
cartridge
An unsupported toner cartridge
has been detected.
984:Black toner cartridge
position
985:Yellow toner cartridge
position
986:Magenta toner cartridge
position
987:Cyan toner cartridge
position
Replace it with an
appropriate toner
cartridge.
WDT ERROR
R14=××××××××
PU firmware
runaway
Does this error recur? Yes Turn on the power
again.
Replace the CU/
PU board.
COMMUNICATION
ERROR
I/F error
between PU
and CU
Does this error recur? Yes
Replace the CU/
PU board.
ASIC ERROR DCON access
error
Does this error recur? Yes Replace the CU/
PU board.
Note! Service calls 168 error, 171 error, 175 error, 903 error and 904 error; These
errors can occur when the printer temperature is below 0
. Turn on the
power again after the printer temperature has increased.