Oki C3400n Maintenance Manual page 122

Display Cause
Service call Engine
105: Error EEPROM
mounting check
error when the
power supply is
turned on.
Service call The engine
106: Error control logic is
abnormal
Service call High-voltage
121: Error power supply I/F
error
Service call
Environmental
123: Error humidity
abnormal/
humidity sensor
disconnection
Service call
Environmental
124: Error temperature
abnormality
Service call The dewy of the
126: Error device is
detected
Service call Fixed cooling
127: Error fan error
Service call LED head
131: Error detection
abnormality
134: Error (131=Y, 132=M,
133=C, 134=K)
Service call ID Up/Down
140: Error position
detection error
142: Error
Service call Defective fuse
150: Error cutting of ID unit
153: Error
Service call Defective fuse
154: Error cutting of belt
unit
43163501TH Rev. 1
Table 7-1-2 service call error list (2/6)
Details of error
Does the error recur?
Does the error recur?
Is the cable between PU board ant
the high-voltage power supply unit
correctly connected?
Isn't there defective contact point?
Is the cable between the PU board
and the high-voltage power supply
unit correctly connected?
Does the error recur?
Dew condensation occurs easily
after the device is carried in from
outside.
After leaving it at room
temperature for 2 hours to half a
day, turn on the power again.
Does the error recur?
Is the connector connection of the
fan normal?
Does the error recur?
Is the LED head installed
correctly?
Does LED HEAD FUSE cut?
Does the error recur?
Does it has anything trouble with
the detaching/attaching of ID unit?
Does the error recur?
Is the ID unit installed correctly?
Does the error reoacur?
Does it restore by exchanging
PRE board
Is the belt unit installed correctly?
Does the error recur?
Oki Data CONFIDENTIAL
Method
Power supply OFF/ON
Replace BLA board
Yes
Power supply OFF/ON
Replace BLA board
Yes
Reconnect correctly.
No
Check the defective contact
Yes
point of high-voltage system.
Replace the high voltage power
No
supply.
Reconnect correctly.
No
Replace the high-voltage power
Yes
supply.
Power supply OFF/ON
Replace control panel board
Yes
(PRP)
Turn on the power again after
Yes
leaving the device for hours.
Replace the high-voltage power
supply.
Reconnect normally
No
Replace the fan motor
Yes
Install the LED head correctly
No
Check LED HEAD FUSE.
Replace FUSE
Yes
Turn on the power supply again
Yes
Replace the LED head unit
No
Please refer to chapter 7.6 for
Yes
replace method of FUSE.
Replace BLA board
Reinstall the ID unit.
Yes
Turn on the power supply again
No
Replace the high voltage power
Yes
supply.
Install the ID unit again
No
Turn on the power supply again
Yes
Replace PRE board after check
Yes
the cable connection of PRE
board - BLA board
Replace BLA board
Reinstall the belt unit.
No
Turn on the power supply again
Replace BLA board after check
Yes
cable connection.
Yes
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