Question about Brother MFC 420CN All-In-One InkJet Printer

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Error code 4F on my printer MFC 420CN, is there anything I

Error code 4F on my printer, is there anything I can do to clear this?

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  • Anonymous Mar 13, 2014

    Flashing light error code 4F

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Error Brother 4F
Access the internal maintenance mode by pressing the Menu/Set button, then press * 2 8 6 4 within 2 seconds. This should put you in the maintenance mode menu. Enter 80, then scroll down with the arrow down (round) key. You'll find an entry listed as purge count. If number is over 6000, enter 2 7 8 3.

This will reset the purge count value. Then the printer will restart, hopefully without the annoying cannot clean message.


All I ask is please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Posted on Apr 25, 2010

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I followed your steps and kept repeating them and it finally took. I think you have to hold the asterisk down while you are pushing in the numbers 2 8 6 4. The only problem is i'm not sure how to get out of this mode after I entered the numbers to purge.

Posted on Jan 18, 2013

  • aliciaame463
    aliciaame463 Jan 18, 2013

    I followed your steps and kept repeating them and it finally took. I think you have to hold the asterisk down while you are pushing in the numbers 2 8 6 4. The only problem is i'm not sure how to get out of this mode after I entered the numbers to purge. I unplugged it and all is working again! Thank you so much!

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Do you mean "unable to clean"?If it this follow this instruction.
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