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  1. #1
    Junior Member
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    Apr 2014
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    Janesville
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    C748 cartridge issues

    Does anyone have a solid fix to the issue where toner/developer cartridges will create spots on pages. Pick any color I have had every color of toner do this on various machines, and not just when the cartridge is low on toner. I just replaced a cyan toner with under 2500 prints that was leaving spots. Put in a new cartridge and it went away.

  2. #2
    Technician
    Join Date
    Jan 2015
    Location
    Tulsa, OK
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    21
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    19

    Re: C748 cartridge issues

    Bump. I've replaced about 6 different toners, all different colors recently on just one machine! Is it a transfer belt issue or something else? Or is it a common issue and we just keep on replacing toner carts?

  3. #3
    Master Of The Obvious 10,000+ Posts
    C748 cartridge issues

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,444
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    462

    Re: C748 cartridge issues

    It's paper dust contamination under the S-blade in the developing unit/toner cartridge.

    A fix? Um ... use better quality paper. =^..^=
    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 =^..^=

  4. #4
    Field Supervisor 500+ Posts
    C748 cartridge issues

    dalewb74's Avatar
    Join Date
    Feb 2018
    Posts
    875
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    29

    Re: C748 cartridge issues

    i have the same issue and generally replace the toner and that fixes it for a bit. haven't heard of an actual fix from lexmark.

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