Brother DCP-L8400CDN Service Manual page 81

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Error code 4F01
Cartridge Error
Put the Toner Cartridge back in.
The new toner sensor of the toner cartridge (Black) could not detect a new cartridge properly.
Error code 4F02
Cartridge Error
Put the Yellow #C Toner Cartridge back in.
The new toner sensor of the toner cartridge (Yellow) could not detect a new cartridge properly.
Error code 4F03
Cartridge Error
Put the Magenta #C Toner Cartridge back in.
The new toner sensor of the toner cartridge (Magenta) could not detect a new cartridge
properly.
Error code 4F04
Cartridge Error
Put the Cyan #C Toner Cartridge back in.
The new toner sensor of the toner cartridge (Cyan) could not detect a new cartridge properly.
< User Check >
- Replace the toner cartridge with a new toner cartridge again.
- If the place where the machine is installed is not flat, relocate the machine to a flat place.
Step
1
Connection failure of the new
toner sensor PCB harness
2
New toner actuator that has
come off or that has been caught
3
New toner sensor failure
4
Main PCB failure
Cause
Reconnect the toner/new sensor PCB
harness.
Re-assemble the new toner actuator.
Replace the toner/new sensor PCB ASSY.
Replace the main PCB ASSY.
2-51
Remedy
Confidential