Xerox WC7120 strange copy quality

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  • CanonSco
    Man About Town

    250+ Posts
    • Jul 2010
    • 368

    #1

    Xerox WC7120 strange copy quality

    Hi Guys,

    Have a bit of a strange copy quality fault issue on a WC7120.

    It presents itself as very intermittent ( 1 in the 100's ) cyan / blue "finger print" type mark. Never managed to get it to do it whilst on site. Examples shown.
    Cant remove examples to scan due to security. Mark shown on A3 , does not repeat. Random place on all examples.

    Machine sub 10k click. Like new. Couldn't actually find anything to clean whilst taking it apart.

    Replaced - Drums x4 / IBT / 2nd BTR. No joy.

    Any ideas.
    Yes, I am a nerd.
    Gaming PC - check. Raspberry Pi - Check. Custom ROM on phone - check. Thick glasses - check.
  • Exok
    Senior Tech

    500+ Posts
    • Jun 2011
    • 750

    #2
    Re: Xerox WC7120 strange copy quality

    I would need to see a sample.

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