How to reset Brother MFC-7840w Drum

  1. Make sure that the machine is turned on.
  2. Open the front cover.
    Open the front cover
  3. Press Clear or Clear/Back on the control panel.
    NOTE: The layout of a control panel differs depending on the model, but the Clear or Clear/Back button is located on the right side of the LCD screen as shown in illustration.

    Control Panel
  4. Do one of the following.
    • If your Brother machine has a numeric keypad:
      Press 1 to reset the drum counter.
    • If your Brother machine doesn’t have a numeric keypad:
      Press the Up Arrow Key to reset the drum counter.
  5. When the LCD shows Accepted, close the front cover.


  1. I have utilized the instructions above and my machine says it is not registered??

  2. Candice

    Worked like a charm thanks so much!!

  3. Kimberly

    Exactly what I needed!


    thank you
    work perfect

  5. I have tried the step shown here and I my printer still says… toner life ended …replace toner cartridge?????????????

    • These steps are for a drum reset , as for toner try this

      Open front door, press clear button, DO NOT PRESS 1 or 2, instead *00, should says accepted, close door

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