Brother HL-L6250DN - Reset Drum
After changing a drum unit in a Brother HL-L6250DN, the printer’s page count needs to be reset. This will turn off the drum warning on the printer.
- Ensure the printer is switched on.
 - Open the cover on the front of the printer.
 - Press and hold the OK button for around two seconds.
 - The Drum Unit option should now appear.
 - Press OK
 - Press the Up Arrow Key to reset the drum counter.
 - Close the cover on the front of the printer.