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  1. #1
    Trusted Tech 50+ Posts
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    Bizhub C550 color problem

    Dear All,
    I have a problem with my C550 machine, as you can see in the sample page the machine print too much green, I have already changed imaging unit, transfert belt, laser unit but no change, does anybody send any suggestion. Thank you very much in advance.page1.jpg

  2. #2
    Field Supervisor 500+ Posts Woxner's Avatar
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    Re: Bizhub C550 color problem

    have youi done the inialize and reset the gradation.

  3. #3
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    Re: Bizhub C550 color problem

    Yes, I have changed everything without any good result (transfert belt, laser unit, HV1, HV2, etc). The problem still persist, does anybody have a suggestion?

  4. #4
    Technician Schneider's Avatar
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    Re: Bizhub C550 color problem

    Its very odd - tried a main board?

  5. #5
    Service Manager 10,000+ Posts
    Bizhub C550 color problem

    Phil B.'s Avatar
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    Re: Bizhub C550 color problem

    Quote Originally Posted by rindraintsoa View Post
    Yes, I have changed everything without any good result (transfert belt, laser unit, HV1, HV2, etc). The problem still persist, does anybody have a suggestion?
    you have too much CYAN ..not green. Y & C = G.

    look at the dispensing ratios

  6. #6
    Service Manager 1,000+ Posts
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    Re: Bizhub C550 color problem

    I think Phil is on it. What have you done with the Imaging units???

  7. #7
    Service Manager 10,000+ Posts
    Bizhub C550 color problem

    Phil B.'s Avatar
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    Re: Bizhub C550 color problem

    Quote Originally Posted by rindraintsoa View Post
    Yes, I have changed everything without any good result (transfert belt, laser unit, HV1, HV2, etc). The problem still persist, does anybody have a suggestion?
    gradation adjust is not PARTS but a service mode function. replacing parts should be done AFTER calibrations/adjustments have failed.

  8. #8
    Master Of The Obvious 10,000+ Posts
    Bizhub C550 color problem

    blackcat4866's Avatar
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    Re: Bizhub C550 color problem

    Quote Originally Posted by Phil B. View Post
    you have too much CYAN ..not green. Y & C = G.

    look at the dispensing ratios
    So you're not even going to look at the consumables, like imaging units? In addition to cyan massively overtoning, magenta is massively undertoning. You must have been talking to the hotline: "Oh yeah, it's got to be a board..."

    =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  9. #9
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    Re: Bizhub C550 color problem

    Hi all,
    I would like to mention that I am a field engineer so the first thing I have done was to change the IU. When I say green I understand that Green is mix of Cyan and Yellow. So any feedback would be much appreciated. Thanks all

  10. #10
    Senior Tech 250+ Posts Zesti's Avatar
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    Re: Bizhub C550 color problem

    Can you share level history1 and Table No. data.
    Can you tell briefly describe history of what happened?

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