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  1. #1
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    Weird Cyan Lines C552

    Hi guys,

    One C552 is printing weird lines of cyan. As shown in the attachment.

    Things i have done.
    1. Swap a PH unit
    2. Swap a Relay board
    3. Swap a PRCB
    4. Swap a Cyan imaging unit
    5. Swap a transfer belt unit

    regardless the steps i have done, the demo print produces exactly same cyan lines same position same length.

    SKMBT_C55220021012260.pdf

    I am kinda loss at this moment.

  2. #2
    Field Supervisor 500+ Posts Woxner's Avatar
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    Re: Weird Cyan Lines C552

    replace mfp or memory

  3. #3
    Service Manager 5,000+ Posts
    Weird Cyan Lines C552

    Phil B.'s Avatar
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    Re: Weird Cyan Lines C552

    Quote Originally Posted by cayyell View Post
    Hi guys,

    One C552 is printing weird lines of cyan. As shown in the attachment.

    Things i have done.
    1. Swap a PH unit
    2. Swap a Relay board
    3. Swap a PRCB
    4. Swap a Cyan imaging unit
    5. Swap a transfer belt unit

    regardless the steps i have done, the demo print produces exactly same cyan lines same position same length.

    SKMBT_C55220021012260.pdf

    I am kinda loss at this moment.

    I don't notice the lines UNTIL color is invoked.

    have you checked the cyan drum/dev?

    all those parts you swapped... from a used/loner machine?

    how did you diagnose unit to determine trying those other parts?
    what are the counts on imaging section parts?

  4. #4
    Trusted Tech 50+ Posts
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    Re: Weird Cyan Lines C552

    Quote Originally Posted by Woxner View Post
    replace mfp or memory
    I guess this is my last resort.

    Quote Originally Posted by Phil B. View Post
    I don't notice the lines UNTIL color is invoked.

    have you checked the cyan drum/dev?

    all those parts you swapped... from a used/loner machine?

    how did you diagnose unit to determine trying those other parts?
    what are the counts on imaging section parts?
    all swap parts are used and confirmed in working conditions.
    Diagnose was confirmed not from imaging unit as it looks more like data error.

    and thank you so much for the effort to invoke the colour.

  5. #5
    Senior Tech 100+ Posts Zesti's Avatar
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    Re: Weird Cyan Lines C552

    MFP board is the culprit. I have had problems with 552 series machines. If you continue using machine the problem will worsen with more lines. I'm already looking for a MFPB board for C552....

  6. #6
    Trusted Tech 50+ Posts
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    Re: Weird Cyan Lines C552

    Quote Originally Posted by Zesti View Post
    MFP board is the culprit. I have had problems with 552 series machines. If you continue using machine the problem will worsen with more lines. I'm already looking for a MFPB board for C552....

    thank man, I managed to replace a MFPB yesterday. It works like charm now.

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