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  1. #1
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    Quality issues M3550idn

    I have a M3550idn random make light prints.
    Replaced developer unit, drum unit, transfer roller, HV board and developer clutch.
    Thanks for any help.

    Print.JPG

  2. #2
    Trusted Tech 50+ Posts mita's Avatar
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    Re: Quality issues M3550idn

    Are you using brand toner?

  3. #3
    Service Manager 5,000+ Posts
    Quality issues M3550idn

    BillyCarpenter's Avatar
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    Re: Quality issues M3550idn

    Is it doing the same thing on print and copy?

    I can't tell a whole lot from the image you posted. Can you post a solid black image (skyshot)?

  4. #4
    Technician
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    Re: Quality issues M3550idn

    OEM toner
    at the moment every print/copy exit good
    sky.pdf

    Print1.JPG

  5. #5
    Master Of The Obvious 10,000+ Posts
    Quality issues M3550idn

    blackcat4866's Avatar
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    Re: Quality issues M3550idn

    What is the interval on the anomalies crossfeed, as seen in the skyshot?

    My Acrobat Distance Tool tells me the interval is 45.212mm, which is the developing unit fault. If you've already changed the developing unit and clutch, I'd look at the rest of the developing drive components (gears, bushings, shafts, etc.). On the ECOSYS FS4020 I've seen those bushings oval out, and if I remember correctly, they are not available separately. I dug through my miscellany for bushing replacements.

    Keep in mind that every Kyocera monochrome desktop has defects of this sort, even new out of the box. =^..^=
    Last edited by blackcat4866; 01-05-2021 at 12:08 AM.
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  6. #6
    Senior Tech 100+ Posts
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    Re: Quality issues M3550idn

    Is the transfer roller assy fully seated, and clear of any debris in it's vicinity?

  7. #7
    Senior Tech 250+ Posts ntbann's Avatar
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    Re: Quality issues M3550idn

    I had a transfer roller swell on one end causing light prints down one side.

  8. #8
    Technician
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    Central Vic - Australia
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    Re: Quality issues M3550idn

    Looks like the drum has been exposed to light for too long.

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