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

2 Answers

Black cartridge doesn't print


I have a Brother MFC-465cn and I recently changed the black cartridge (LC-51) and when I printed the test page everything printed except black, I opened another new cartridge just in case and same thing happened. After numerous cleaning and print test I gave up..

Please if you know how I could solve this I would appreciate it.

Thanks in advance,


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  • 3 more comments 
  • Anonymous Aug 03, 2008

    I've changed my black twice. Won't print either

  • jaygui Aug 04, 2008

    Thanks for the quick response. Unfortunately I can't find the user's manual.

  • jaygui Aug 07, 2008

    still not working after updating the firmware. Any other solution??? Thanks again, Jay

  • Andy Aug 07, 2013

    Have the same problem, the printhead itself if f*cked, might as well buy a new one. It won't be a brother!

  • Anonymous Mar 29, 2014

    have tried reseating cartridges and power off and on. no joy


2 Answers

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You need to do a hard reset on the printer as well it might clear up the problem and recognize the ink at its proper levels.

refer to your user manual or let us know and we will find the procedure to do so.

i have a similar model and know how picky they can be.

Posted on Aug 03, 2008

  • Wesley Gardner
    Wesley Gardner Aug 04, 2008

    ok the following below was taken from the manual of the MFC unit which you can view all the documentation on it here

    I searched around and could not find the hard reset procedure on their website so I will have to try myself to see if I can do it on mine.

    but please read the following.

    your output, some of the nozzles may be

    clogged. You can check this by printing the

    Print Quality Check Sheet and looking at the

    nozzle check pattern.

    a Press Ink.

    b Press a or b to choose Test Print.

    Press OK.

    c Press a or b to choose

    Print Quality.

    Press OK.

    d Press Color Start.

    The machine begins printing the Print

    Quality Check Sheet.

    e Check the quality of the four color blocks

    on the sheet.

    f The LCD asks you if the print quality is


    Do one of the following:

    􀂄 If all lines are clear and visible, press

    (Yes) to finish the Print Quality


    Go to step j.

    􀂄 If you can see missing short lines as

    shown below, press 2 to choose No.

    g The LCD asks you if the print quality is

    OK for black and three colors.

    Press 1 (Yes) or 2 (No).

    h The LCD asks you if you want to start


    Press 1 (Yes).

    The machine starts cleaning the print


    i After cleaning is finished, press

    Color Start

    The machine starts printing the Print

    Quality Check Sheet again and then

    return to step e.

    j Press Stop/Exit.

    If you repeat this procedure at least five

    times and the print quality is still poor,

    replace the ink cartridge for the clogged


    After replacing the ink cartridge, check

    the print quality. If the problem still

    exists, repeat the cleaning and test print

    procedures at least five times for the

    new ink cartridge. If ink is still missing,

    call Brother Customer Service.


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  • 21 Answers

Somethings that have worked for some Brother owners to get cartridges recognised.

1. With your MFC powered up, open it up and remove the cartridge you are having a problem with, then close the MFC, leaving it powered up. It should report that there is no cartridge in the machine.

Still with the MFC powered up, open it up and reinsert the ink cartridge, then close the MFC. It should either ask if you have replaced a cartridge or go into its cleaning mode.

Answer "yes" to "have you replaced cartridge?" and it should either "print" or "clean" and then "print".

2. The cartridge holder in the printer has an "electronic eye" (light sensor) of some type for each cartridge.
Some users have found that putting either permanent marker/sharpie/black PVC tape either on the area of the ink cartridge that goes near the sensor or alternatively putting tape over the sensor itself allows printing to occur.
The problem with this method is that the printer will no longer recognise near-empty cartridges and so will not warn you to replace them and so the print head may be damaged. This is said to work on LC57 icartridges used with the following models: DCP-330C, DCP-350C, DCP-540CN, DCP-560CN, FAX-2480C, MFC-240C, MFC-440CN, MFC-465CN, MFC-665CW, MFC-685CW, MFC-885CW, MFC-3360C, MFC-5460CN, MFC-5860CN.

Posted on Nov 05, 2008

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