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  1. #1
    Technician Terna247's Avatar
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    Changing colors.

    Hi I am working on this BH 203. But I got stuck when I noticed that cyan is always changing color on the sent work.... I have adjusted background voltage, Dmax. The iu is in top shape. The life cycle of all units still good. I intend changing the ITB. anyone encountered color changing before?

  2. #2
    Aging Tech 1,000+ Posts
    Changing colors.

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    Re: Changing colors.

    Quote Originally Posted by Terna247 View Post
    Hi I am working on this BH 203. But I got stuck when I noticed that cyan is always changing color on the sent work.... I have adjusted background voltage, Dmax. The iu is in top shape. The life cycle of all units still good. I intend changing the ITB. anyone encountered color changing before?
    It would be beneficial to post some examples of these colour changes.

  3. #3
    RTFM!! 2,500+ Posts allan's Avatar
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    Re: Changing colors.

    Have you done gradation? If the IU is in shape change the background voltage and Dmax back.
    There is always some issues with grey and purple. Try changing print resolution and color settings in the driver settings.
    Whatever

  4. #4
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    Re: Changing colors.

    This series does that. We had a customer return the machine. Had Konica Minolta come to our place and was told that this was normal. Changed more than the 8020/8031 series did.

  5. #5
    Technician Terna247's Avatar
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    Re: Changing colors.

    Performed gradation the first time, machine normalized then started all over after three weeks... I noticed a serious tear on the transfer belt... Thought it could be it but no registration problems. GOT THE PROBLEM WITH CYAN. DECIDES TO PRINT SOLIDS ELIMINATE LIGHT BACKGROUNDS. THANKS.

  6. #6
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    Re: Changing colors.

    Could be a print head problem.

    There are four separate ones on that model, I would try swapping the cyan ph with the magenta ph and see if the fault moves.

  7. #7
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    Re: Changing colors.

    Noticed that you said "sent" work. Does that mean that internal patterns are normal and its only when it is being printed to? if so then your issue may be file related.

  8. #8
    Technician Terna247's Avatar
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    Re: Changing colors.

    No Lavind..... I did memory/HDD bus check. They were all OK thanks.

  9. #9
    Technician Terna247's Avatar
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    Thumbs up Re: Changing colors.

    Quote Originally Posted by tech51 View Post
    Could be a print head problem.

    There are four separate ones on that model, I would try swapping the cyan ph with the magenta ph and see if the fault moves.
    Been there. Thanks

  10. #10
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    Changing colors.

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    Re: Changing colors.

    Quote Originally Posted by Terna247 View Post
    Been there. Thanks
    If it is only cyan being affected, try a new IU. Even if it is in "top shape" it could be defective.
    H/V board could also be the issue.

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