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  1. #1
    Senior Tech 250+ Posts
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    Lexmark C925DE Color Banding...unreal

    Ok gentlemen. Went to a Lexmark C925 DE printer today. Call was for copy quality. Boy was that true. See attached image. Has anyone seen this wierd color banding ??2013-05-03 16.09.28 lexmark.jpg


  2. #2
    Service Manager 10,000+ Posts
    Lexmark C925DE Color Banding...unreal

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    Lightbulb Re: Lexmark C925DE Color Banding...unreal

    This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:


    Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com



  3. #3
    Just a fellow wanderer 2,500+ Posts Iowatech's Avatar
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    Re: Lexmark C925DE Color Banding...unreal

    Kind of looks like an automatic line adjustment/color registration pattern. Is the transfer belt unit in good shape?


  4. #4
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    Re: Lexmark C925DE Color Banding...unreal

    Took transfer belt out and examined. Did't see any issues ( doesn't mean there's not any). It cleans good. Can you turn line adjustment off/on.. How would you trouble shoot this. Lexmark is sending new image units, but I dont believe all three color units would go bad at once. The spacing on the bands is 75 mm..I dont see 3 print heads screwing up at the same time either.. This printer only has 24K prints..

    Attached Images Attached Images

  5. #5
    Service Manager 250+ Posts Silvertoast's Avatar
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    Re: Lexmark C925DE Color Banding...unreal

    i would try the simple first and update the firmware or reflash if it already has the newest. if still acts up u might have a sys card problem


  6. #6
    Master Of The Obvious 10,000+ Posts
    Lexmark C925DE Color Banding...unreal

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    Re: Lexmark C925DE Color Banding...unreal

    It looks like transfer belt to me too. On other brands I've seen a torn or pierced belt snag on the transfer cleaning blade, creating the bar crossfeed for each color, and offsetting the color registration by 5 to 8mm each time. Just rotate through a couple full rotations of the belt. The damage is usually pretty catastrophic, and you'll feel it in the drive when the rough spot goes by. =^..^=

    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.


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

  7. #7
    Senior Tech 250+ Posts
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    Re: Lexmark C925DE Color Banding...unreal


  8. #8
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    Re: Lexmark C925DE Color Banding...unreal

    SOLVED...Exchanged all 3 color imaging units one at a time...Cyan unit fixed it


  9. #9
    Just a fellow wanderer 2,500+ Posts Iowatech's Avatar
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    Re: Lexmark C925DE Color Banding...unreal

    I would have never thought that one damaged color drum could cause CYM copy defects. Thanks for the info!


  10. #10
    Service Manager 1,000+ Posts
    Lexmark C925DE Color Banding...unreal

    Lagonda's Avatar
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    Re: Lexmark C925DE Color Banding...unreal

    Good Morning Gentlemen,
    Its not often I visit this corner of CTN but I have a X925 in the workshop thats giving me grief.
    It started with the above problem and a new yellow drum unit solved the problem. Now I can't get the yellow into registration with the other colours. Tried another yellow unit but no difference and there is not enough adjustment in the manual colour registration adjustment to bring it into line.

    With the other major brand I usually work with I would access the service programme and adjust the timing for the yellow drum motor but this feature doesn't appear to be available with Lexmark.

    Any suggestions?


    I tried the Lexmark helpline but after firmware and another drum unit the best they could come up with was try another toner, shesh!!!! I asked them to explain to be how a toner could affect the drum timing but they have yet to get back to me.

    At least 50% of IT is a solution looking for a problem.

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