Canon C7580 III copy quality

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  • nkolee
    Technician
    Site Contributor
    • May 2018
    • 14

    Canon C7580 III copy quality

    I have a C7580 III that is giving CQ issues leaving on test pattern 10 white streaks. Swapped ITB Belt Assembly and problem follows in another machine. Changed cleaning blade, still white streaks. Any ideas?
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  • wcanonw
    Trusted Tech
    • Aug 2014
    • 401

    #2
    Re: Canon C7580 III copy quality

    Did you change the transfer unit or transfer belt?
    discards secondary transfer unit or fuser unit

    Comment

    • nkolee
      Technician
      Site Contributor
      • May 2018
      • 14

      #3
      Re: Canon C7580 III copy quality

      Originally posted by wcanonw
      Did you change the transfer unit or transfer belt?
      discards secondary transfer unit or fuser unit
      Changed (swapped) ITB belt assembly, cleaning blade. When swapped with a new assembly, problem did not follow. Have not changed ITB belt itself.

      Problem is definitely coming from somewhere in ITB belt assembly.

      Comment

      • fchu5959
        Field Engineer
        100+ Posts
        • Jun 2010
        • 100

        #4
        Re: Canon C7580 III copy quality

        Originally posted by nkolee
        Changed (swapped) ITB belt assembly, cleaning blade. When swapped with a new assembly, problem did not follow. Have not changed ITB belt itself.

        Problem is definitely coming from somewhere in ITB belt assembly.

        Hi,

        Clean the inner secondary transfer roller with a damp micro fibre cloth or replace it with a new one.
        Please post back the outcome.

        good luck.

        Comment

        • nkolee
          Technician
          Site Contributor
          • May 2018
          • 14

          #5
          Re: Canon C7580 III copy quality

          Originally posted by fchu5959
          Hi,

          Clean the inner secondary transfer roller with a damp micro fibre cloth or replace it with a new one.
          Please post back the outcome.

          good luck.
          I will definitely try that and report back. Thank you so much!

          Comment

          • nkolee
            Technician
            Site Contributor
            • May 2018
            • 14

            #6
            Re: Canon C7580 III copy quality

            Cleaned the inner roller, problem improved. Changed inner roller and also cleaned inside of belt, problem gone.

            Many thanks!! 😁

            Comment

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