FOR DCP PRINTERS:

1) Open the font cover and press the [Clear] button 
2)To confirm you are installing a new drum press the up arrow.
3) When the LCD screen shows "Accepted", close the front cover.

FOR HL PRINTERS:

1) Open the cover 
2) Press and hold the [Go] button for 4 seconds.
3) Once all four LEDs are lit, release the [Go]

Brother DR 420 reset

Close the front cover and make sure the Drum LED is off 

FOR INTELLIFAX AND MFC PRINTERS:

1) Open the font cover and press the [Clear] button 
2) Press 1 to confirm you are installing a new drum unit.
3) When the LCD screen shows "Accepted", close the front cover.

 

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