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  1. #1
    Senior Tech 500+ Posts kuby's Avatar
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    ECOSYS M2040dn - knocking noise

    Have a M2040dn making a knocking noise coming from the toner/developer/drum section I think. Any one run into this before? Do not know if it is the paper feed which I don't think it is or a bad developer unit or drum unit. Both turn fairly easy.

    Thanks

  2. #2
    Senior Tech 100+ Posts
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    Re: ECOSYS M2040dn - knocking noise

    I had one of those making a knocking noise and it turned out to be a fuser which they changed to correct it and also jamming once in a while

  3. #3
    Senior Tech 500+ Posts kuby's Avatar
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    Re: ECOSYS M2040dn - knocking noise

    Thanks will look at that tomorrow. Not jamming just a popping noise.

  4. #4
    Service Manager 1,000+ Posts
    ECOSYS M2040dn - knocking noise


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    Re: ECOSYS M2040dn - knocking noise

    It's the fuser. The noise echoes throughout the machine. I thought it was paper lift, then drum/dev. First time I saw it I turned the fuser by hand and it seeemed fine and after re-installing it went away for a couple months. Came back and I changed the fuser. Have seen this issue a couple more times since then on other machines.

    Like the above post says the fuser has a couple bulletins...will also cause non-stop 42xx jams.

  5. #5
    Senior Tech 500+ Posts kuby's Avatar
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    Re: ECOSYS M2040dn - knocking noise

    Thanks for the help. What I did was remove the fuser drive assy and took the cover off and two gears and there is a tension spring under them. I stretched the spring and put it back together and installed the fuser drive and fuser and tested. No popping. Figured it was worth a shot. So I guessing the spring tension had weakened and let the gears slip a bit.

  6. #6
    Technician Calliem's Avatar
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    Re: ECOSYS M2040dn - knocking noise

    Quote Originally Posted by kuby View Post
    Have a M2040dn making a knocking noise coming from the toner/developer/drum section I think. Any one run into this before? Do not know if it is the paper feed which I don't think it is or a bad developer unit or drum unit. Both turn fairly easy.

    Thanks
    replace toner cartridge,might help have had a couple of those where it sounds like machine is stripping every gear it has but was only toner cartridge problem

  7. #7
    Senior Tech 500+ Posts kuby's Avatar
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    Re: ECOSYS M2040dn - knocking noise

    first Thing I tried was replacing toner cartridge.

  8. #8
    Senior Tech 100+ Posts
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    Re: ECOSYS M2040dn - knocking noise

    very often broken gears in fuser drive
    Libra Noise.JPG

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