When a new DR3415 drum unit is installed in your MFCL5755DW – MFCL6700DW -MFCL6900DW printer you will need to reset the counter as follows:
- Make sure the machine is turned on.
- Press Settings (Settings) > All Settings > Machine Info. > Parts Life.
- Press and hold Drum Life until the machine’s display message changes.
- Press Yes.
- Press Home (Home).
When a new DR3415 drum unit is installed in your HLL5100DN – HLL5200DW – HLL6200DW – HLL6400DW printer you will need to reset the counter as follows:
- Make sure the machine is turned on.
- Open the front cover.
- Open Front Cover.
- Press and hold OK for about two seconds to display Drum Unit, and then press OK.
- Press the Up arrow key to reset the drum counter.
- Close the front cover of the machine.
