KM C253 Lines On Color Copies ONLY

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  • gerryhuerta
    AccService
    • Jul 2009
    • 198

    KM C253 Lines On Color Copies ONLY

    Hello guys,


    Getting hotizontal lines in ALL Color Copies
    Attached Files
    Last edited by gerryhuerta; 02-25-2019, 11:40 PM. Reason: Add Attachment:
  • darry1322
    Senior Tech

    Site Contributor
    500+ Posts
    • Oct 2010
    • 817

    #2
    Re: KM C253 Lines On Color Copies ONLY

    Time to thoroughly clean those optics. Some things show up more in the color spectrum than in B&W.

    If color and B&W prints are good, then all print engine items (lasers, drums, devs, fuser) should be fine.



    EDIT: If a thorough cleaning of the optics doesn't fix then it could be the CCD unit. Cleaning is cheaper.

    EDIT2: The samples look like it's for sure in either the CCD or image processing.
    Last edited by darry1322; 02-26-2019, 04:00 AM.

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    • Toxic
      Senior Tech

      500+ Posts
      • Dec 2009
      • 690

      #3
      Re: KM C253 Lines On Color Copies ONLY

      Did you try color scan to PC?
      If something wrong (or dirt) with optics it should be seen on scan too.

      Comment

      • allan
        RTFM!!

        5,000+ Posts
        • Apr 2010
        • 5445

        #4
        Re: KM C253 Lines On Color Copies ONLY

        Good point that will split it up between optics/CCD and possible processing problems.
        I will wack it with a cloth and reconnect relevant connectors.

        But an old ninja trick is to make reductions and enlarged copies.
        If the marks stay were they are at well not so good news...

        Coming from a guy who can't get firmware onto a copier.
        Whatever

        Comment

        • darry1322
          Senior Tech

          Site Contributor
          500+ Posts
          • Oct 2010
          • 817

          #5
          Re: KM C253 Lines On Color Copies ONLY

          Originally posted by allan

          But an old ninja trick is to make reductions and enlarged copies.
          If the marks stay were they are at well not so good news...
          Good suggestion. If the lines follow the reduction or enlargement, it's in the optics.

          Comment

          • blackcat4866
            Master Of The Obvious

            Site Contributor
            10,000+ Posts
            • Jul 2007
            • 22703

            #6
            Re: KM C253 Lines On Color Copies ONLY

            That's completely bizarre!

            The anomalies are too regular and too consistent, and not matching any interval I recognize. I think I'd try re-seating the CCD cables first, replace CCD second.

            Definitely scanner or image processing caused.

            I just had a thought: The color variation of the stripes is mainly changes in Red, since the CCD scans lines of red green and blue, not CMYK. =^..^=
            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 =^..^=

            Comment

            • Toxic
              Senior Tech

              500+ Posts
              • Dec 2009
              • 690

              #7
              Re: KM C253 Lines On Color Copies ONLY

              Originally posted by blackcat4866

              The anomalies are too regular and too consistent, and not matching any interval I recognize. I think I'd try re-seating the CCD cables first, replace CCD second.

              Definitely scanner or image processing caused.

              I just had a thought: The color variation of the stripes is mainly changes in Red, since the CCD scans lines of red green and blue, not CMYK. =^..^=
              +1

              Comment

              • gerryhuerta
                AccService
                • Jul 2009
                • 198

                #8
                Re: KM C253 Lines On Color Copies ONLY

                Originally posted by blackcat4866
                That's completely bizarre!

                The anomalies are too regular and too consistent, and not matching any interval I recognize. I think I'd try re-seating the CCD cables first, replace CCD second.

                Definitely scanner or image processing caused.

                I just had a thought: The color variation of the stripes is mainly changes in Red, since the CCD scans lines of red green and blue, not CMYK. =^..^=

                Great. Im getting back to the customer tomorrow...

                Comment

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