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  1. #11
    Senior Tech 100+ Posts Prints Charming's Avatar
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    Re: Mx-7580N registration pattern showing randomly on 2 side

    100% agree with Mojo. Your issue is gunk inside the Primary Transfer Belt, stuck to the drive roller which lifts the belt surface as it passes the cleaning blade on each rotation. The distance between image defects is the rotation distance of the drive roller.
    No boards are required here. You need to dismantle and service the Primary Transfer Belt to fix the underlying issue.

  2. #12
    Master Of The Obvious 10,000+ Posts
    Mx-7580N registration pattern showing randomly on 2 side

    blackcat4866's Avatar
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    Re: Mx-7580N registration pattern showing randomly on 2 side

    It sorta looks like a pierce in the primary transfer belt, or "Mustache", as seen on a Konica Minolta, but too close together. Contaminated facing rollers is a possibility.

    Measure the distance between intervals ... according to my PDF reader that's 94.5mm ... maybe a drum interval? It sounds too big for a facing roller. =^..^=
    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 =^..^=

  3. #13
    Senior Tech 250+ Posts
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    Re: Mx-7580N registration pattern showing randomly on 2 side

    Hi

    itīs to 100% the first transfer belt. Have had this many times, there is dirt on the roller under the belt.

    Best regards from Germany

  4. #14
    Technician GramPaBo's Avatar
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    Jul 2018
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    Re: Mx-7580N registration pattern showing randomly on 2 side

    This should be my final update - Thank You all for your advice - after replacing the 1T unit we are no longer seeing the issue - I was actually surprised that the registration pattern cleared up - since everything else was cleaning off just fine - print shop is using it to print out booklets with lots of pictures and no "ghosting" of anything else.

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