Question about Brother MFC-8840D All-In-One Laser Printer

1 Answer

Grinding noise/paper jam

When i go to print or copy and even when i close the cover where the toner cartridge goes, I get a "grinding noise" and the paper gets stuck in the toner cartridge.

Any ideas what might be wrong? I also have problem with a roller on the front edge of the paper trays which keeps getting knocked out of its holes.

Any ideas on this?

Thanks in advance for your help

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  • 2 more comments 
  • dlantz Jan 16, 2008

    I took the back of the printer off and found that the fuser gear and the gear it meshes with are both broken. I ordered a new fuser and the gear and I am in the process of trying to put it back together.



    I will certainly let you knoe how it works.



    Thanks for your response.

  • dlantz Jan 16, 2008

    I have it apart,put the gear back in. I have a long road ahead, gears are falling off all over the place. I think the diagram you posted will help. Thanks for including it.



    If I cant fix it, i may end up buying a whole new multifunction. Ill let you know how it works out.



    You've been a great help,



    Thanks

  • Soulvisitor
    Soulvisitor May 11, 2010

    Fuser gear has cracked, replace fuser is recommended although gear is also available on its own, but I find when replacing just the gear it cracks within 6 months again, due to the fuser bearings and other gearings making fuser tight to turn.



    Not sure re roller, I can picture the one I beleive and all that spings to mind is to check and maybe bend a little the metal clip either side of roller I think you are talking about.. ie I think it is clear or white is 4 cm long about 1 cm wide held by two spring metal clips on paper cassette.

  • Soulvisitor
    Soulvisitor May 11, 2010

    Fuser gear has cracked, replace fuser is recommended although gear is also available on its own, but I find when replacing just the gear it cracks within 6 months again, due to the fuser bearings and other gearings making fuser tight to turn.



    Not sure re roller, I can picture the one I beleive and all that spings to mind is to check and maybe bend a little the metal clip either side of roller I think you are talking about.. ie I think it is clear or white is 4 cm long about 1 cm wide held by two spring metal clips on paper cassette.

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  • 1,113 Answers

Fuser drive gear is a mission to install

Posted on Jan 16, 2008

  • Soulvisitor
    Soulvisitor Jan 16, 2008


    From memory the side frame has to be pulled off to allow access to above fuser drive gear

    Photo from www.precisionroller.com

  • Soulvisitor
    Soulvisitor Jan 16, 2008


    In the workshop I don't get the time to replace just the gear

    most times I replace entire frame as pic above, it comes as complete unit(expensive) but is a lot quicker to fit.



    If I can be of any more help, feel free to post.

    Good luck

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