
After you replace the drum unit on the Brother HL-L6250DW, the printer keeps showing a drum warning until you reset the drum counter. This Brother HL-L6250DW drum reset guide shows the exact key sequence in a few seconds.
The same procedure also works on the Brother HL-L5100DN, HL-L5200DW and HL-L6200DW.
If Drum Unit does not appear, make sure you are holding the OK button with the front cover open. If the drum warning returns shortly after resetting, the drum unit may be genuinely worn and need replacing.
No. The reset only clears the counter. Streaks, spots or faded print usually mean the drum unit still needs replacing.
No. This resets only the drum counter, not the toner cartridge.
The drum unit is rated for roughly 30,000–50,000 pages on this HL-L series, depending on usage.