To reset the drum counter it would depend on your printer model. If you have a printer where the model number begins with MFC-** you would do the following:
1. Open the front panel.
2. Press the Clear/Back button. The display will show: REPLACE DRUM? 1. YES
3. Close the cover
If you have a printer model number that begins with HL-** you would use this method:
1.Open the front cover of the printer
2.Press and hold down Go button for about 4 seconds until all the LEDs light up.
3.Once all 4 LEDs are lit, release the Go button
4.Close the front cover.
Answered on 8/14/2014 by Shoshana