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  1. #11
    Trusted Tech 50+ Posts trc's Avatar
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    Re: C950 Print Defect

    First IŽll clean imaging units....then try to replace with oem toner and take some sky shot to "wash" the bad toner...if that doesnŽt seem to work....then change developer

  2. #12
    Trusted Tech 50+ Posts trc's Avatar
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    Re: C950 Print Defect

    work with a lot of them....they are excellent, no toner or units failures....they run like Forest Gump!! jajaja

  3. #13
    Service Manager 1,000+ Posts theengel's Avatar
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    Re: C950 Print Defect

    So that's the kind with starter? I've seen that weird pattern a hundred times on canon and HP - both mono-component. I've always replaced the mag roll when it cropped up. So I can't really say for sure.

  4. #14
    Master Of The Obvious 10,000+ Posts
    C950 Print Defect

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    Re: C950 Print Defect

    Like trc suggested, I think I would first install a Lexmark OEM toner cartridge, then start running 50% halftone black images to purge the compatible toner. If the developer is as new as you say, it should re-constitute itself. It could take 200 pages to purge the other toner. =^..^=
    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 =^..^=

  5. #15
    Service Manager 1,000+ Posts theengel's Avatar
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    Re: C950 Print Defect

    Blackcat/trc solution is probably the best way to handle it. Then, if nothing changes, go with a dev. unit.

  6. #16
    Sharp & HP Tech 100+ Posts austonrush's Avatar
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    Re: C950 Print Defect

    I've ordered an OEM toner for the customer. It'll be in today or tomorrow. Update to come soon. Thanks everyone

  7. #17
    Sharp & HP Tech 100+ Posts austonrush's Avatar
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    Re: C950 Print Defect

    Update:

    We put the new lexmark toner in the printer and ran about 150 pages of black and grey print. The problem became less visible but, was still there. The black drum was then swapped out for another black drum (which did not solve the problem before and the marks went completely away).

    So my conclusion is the drum and developer were both contaminated/ damaged by the compatible toner.

    Thanks everyone for your help. We can call this one closed for now!

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