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Confidential
■ Error code F4
Waste toner box full.
(Overcurrent flows to the cleaning roller due to the end of life of the cleaning roller.)
<User Check>
- Replace the waste toner box with a new one.
■ Error code F8
Battery connection error
■ Error code F9
Power turned OFF while the function code 74 is being executed and “PARAMETER INT” is
being displayed
Replace WT Box
Replace the Waste Toner Box. Refer to the User's Guide for instructions.
Note:
The same message appears in the case of the error code CF.
Step Cause Remedy
1 HVPS control PCB failure Replace the HVPS control PCB ASSY.
2 Engine PCB failure Replace the engine PCB ASSY.
Machine Error F8
Step Cause Remedy
1 Harness connection failure of
battery
Check the connection of the battery
connector and reconnect it.
2 Battery failure Replace the battery ASSY.
3 Main PCB failure Replace the main PCB ASSY.
Machine Error F9
Step Cause Remedy
1 Incorrect operation when setting
EEPROM customize code
Re-enter the EEPROM customize code.
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