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  1. #11
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    Thumbs up Re: C300i image quality problem color horizontal lines

    I visited the machine today and it was working properly.
    Maybe it needed some time after replacing the HV unit or there is bad contact somewhere

  2. #12
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    C300i image quality problem color horizontal lines

    Rewind!'s Avatar
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    Re: C300i image quality problem color horizontal lines

    Just adding into this thread. We replaced the HV board and the issue still persisted. Following the electrical diagram, all voltage and image formation is processed by the expansions control board, which runs the PH unit. We are scheduled to be onsite this week to replace this board. Again, going into the unit and setting the values in the high voltage fine adjustment corrects the issue but has all your values maxed out, when they should be at 0.

    JC

  3. #13
    Service Manager 5,000+ Posts tsbservice's Avatar
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    Re: C300i image quality problem color horizontal lines

    Quote Originally Posted by Rewind! View Post
    Just adding into this thread. We replaced the HV board and the issue still persisted. Following the electrical diagram, all voltage and image formation is processed by the expansions control board, which runs the PH unit. We are scheduled to be onsite this week to replace this board. Again, going into the unit and setting the values in the high voltage fine adjustment corrects the issue but has all your values maxed out, when they should be at 0.

    JC
    Thanks for update JC. Interestin first time I hear about that board may being defective.
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