Brother DCP-L8400CDN Service Manual page 84

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Error code 6101
No Toner
Open the Front Cover, then install Toner Cartridge. Black (BK).
The toner sensor detected that no toner cartridge (Black) was set.
Error code 6102
No Toner
Open the Front Cover, then install Toner Cartridge. Yellow (Y).
The toner sensor detected that no toner cartridge (Yellow) was set.
Error code 6103
No Toner
Open the Front Cover, then install Toner Cartridge. Magenta (M).
The toner sensor detected that no toner cartridge (Magenta) was set.
Error code 6104
No Toner
Open the Front Cover, then install Toner Cartridge. Cyan (C).
The toner sensor detected that no toner cartridge (Cyan) was set.
< User Check >
- Re-insert the toner cartridge.
Step
1
Toner sensor failure
2 Main PCB failure
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Error code 6200
No Drum Unit
Install the Drum Unit.
The current value between the CHG and GRID terminals and the toner sensor detected that
there were no toner cartridges of any colors and detected that the drum unit was not set.
< User Check >
- Re-insert the drum unit.
Step
1
Dirt on the GRID terminals of the
main body and drum unit
2
Dirt on the terminal of the
high-voltage power supply PCB
3
High-voltage power supply PCB
failure
4
Toner sensor failure
5
Main PCB failure
Cause
Replace the toner/new sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Clean the GRID terminals of the main
body and drum unit. (Refer to
Fig. 2-7
Clean the terminal of the high-voltage
power supply PCB.
Replace the high-voltage power supply
PCB ASSY.
Replace the toner/new sensor PCB ASSY.
Replace the main PCB ASSY.
2-54
Remedy
Remedy
(P2-55), Fig. 2-8 (P2-55).)
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