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  1. #1
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    Canon C7580 III copy quality


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    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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  2. #2
    Senior Tech 250+ Posts
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    Re: Canon C7580 III copy quality

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

  3. #3
    Technician
    Canon C7580 III copy quality


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    Re: Canon C7580 III copy quality

    Quote Originally Posted by wcanonw View Post
    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.

  4. #4
    Field Engineer 100+ Posts fchu5959's Avatar
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    Re: Canon C7580 III copy quality

    Quote Originally Posted by nkolee View Post
    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.

  5. #5
    Technician
    Canon C7580 III copy quality


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    Re: Canon C7580 III copy quality

    Quote Originally Posted by fchu5959 View Post
    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!

  6. #6
    Technician
    Canon C7580 III copy quality


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    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!! 😁

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