Oki C9400 Maintenance Manual page 73

Message Cause
Error detected at Engine
Service Call
106: Error Control Logic.
Service Call Error detected at cooling
fan for Engine PCB
120: Error
(PCB-K73).
Service Call Error detected at two
Power Unit cooling fans.
121: Error
/Error detected at
Power Unit temperature
rise. /Error detected at
Charge output or
Interface signals in High-
voltage Power Unit.
Error detected at fan for
Service Call
122: Error a heater exhaust gas.
Service Call Inappropriate ambient
123: Error RH detected by a
sensor.
Service Call Inappropriate ambient
124: Error
temp. detected by a
sensor.
Service Call Error detected at the
125: Error MT home position.
Service Call Temperature rise at
130: Error the LED head
detected.
Service Call No LED head unit
131: Error detected when
~ turning on the printer
134: Error or closing the cover.
Service Call Error detected with
140: Error the D located at
~ appropriate position.
142: Error
Service Call Fuse in the ID unit
150: Error has not been blown.
~
153: Error
Service Call Fuse in the Belt unit
154: Error has not been blown.
Service Call Fuse in the Fuser unit
155: Error has not been blown.
Service Call Error detected by
160: Error Toner sensor.
~
163: Error
Service Call
Short or open circuit
170: Error detected at the Fusert
171: Error hermistor. (H or L
174: Error temperature error)
175: Error
Service Call High temperature
172: Error error detected at
176: Error Thermistor.
Service Call Low temperature
173: Error error detected at
177: Error Thermistor.
41388601TH Rev.6
Table 5-1-1 Operator Alarms (3/6)
Error Description
Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Is the LED head mounted properly?
3) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
Is the ID unit mounted properly?
Is the Belt unit mounted properly?
Is the Fuser unit mounted properly?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
1) Is the error message displayed?
2) Does the error repeat?
Oki Data CONFIDENTIAL
Solutions
Yes Replace the engine control board (K73).
Yes Turn off/on the printer.
Yes Refer fig.5.5.1 A power supply-related
error.
Yes Turn off/on the printer.
Yes Refer fig.5.5.1 A power supply-related
error.
Yes Turn off/on the printer.
Yes
Refer fig.5.5.1 A power supply-related
error.
Yes Turn off/on the printer.
Yes Replace the RH sensor.
Yes Turn off/on the printer.
Yes Replace the temperature sensor.
Yes Turn off/on the printer.
Yes Replace the MT.
Yes Turn off the printer, leave it for 30 min and
then turn it on again.
Yes Replace the LED head unit.
Yes Verify the installation of the LED head.
Yes Turn off/on the printer.
Yes Replace the LED head Assy.
Yes Turn off/on the printer.
Yes Replace the Drum Assy.
Yes Confirm the cable connection, or
replace the Engine board.
Yes Confirm the cable connection, or
replace the Engine board.
Yes Confirm the cable connection, or
replace the Engine board.
Yes Replace Toner sensor or Assy
(Y71-PWB).
Yes Same as the above.
Yes Turn off/on the printer.
Yes Replace the Thermistor and turn off the
printer. Leave it for 30 min.
Yes Turn off/on the printer.
Yes Replace the Thermistor and turn off the
printer. Leave it for 30 min.
Yes Turn off/on the printer.
Yes Replace the Thermistor or heater and
turn off the printer.
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