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  1. #1
    Service Manager 1,000+ Posts
    C203 magenta completely across prints

    mrfuser's Avatar
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    C203 magenta completely across prints

    Machine was working great then suddenly started printing completely magenta across all color output. Replaced transfer belt as the old one has a small hole and same result. Is this a bad magenta imaging unit?

  2. #2
    Service Manager 10,000+ Posts
    C203 magenta completely across prints

    Phil B.'s Avatar
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    Re: C203 magenta completely across prints

    Quote Originally Posted by mrfuser View Post
    Machine was working great then suddenly started printing completely magenta across all color output. Replaced transfer belt as the old one has a small hole and same result. Is this a bad magenta imaging unit?
    well.. sorry my crystal ball is broken...

    how many pages on the IU?
    is the IU clean or covered w/ toner?
    total on machine?
    did you do a stop test?
    is the belt also covered?
    can you see any text under the magenta?
    you pulled the belt.. did you do a visual on the contacts?
    you need to provide more info for us to help you

  3. #3
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: C203 magenta completely across prints

    You can borrow mine its loaded with the latest firmware.


    Strong signal from the ribbon cable....
    Whatever

  4. #4
    Service Manager 1,000+ Posts
    C203 magenta completely across prints

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    Re: C203 magenta completely across prints

    Drum clean , belt fine. Weather a bit cloudy🤪

    I seem to remember there was a fix for this somewhere on these models I just can’t seem to get my brain to wrap around it at the moment And was hoping somebody else out there could remember

  5. #5
    RTFM!! 5,000+ Posts allan's Avatar
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    Re: C203 magenta completely across prints

    Fixed similar issues on this model and the C252's.


    Remove the controller at the back to uncover the ribbon cables.
    Cut a small strip of the front with a sharp scissor to get past the old impression left on it to put fresh copper back into the connector.
    Normally caused by bad HV or laser contacts.
    Whatever

  6. #6
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    Re: C203 magenta completely across prints

    I've had full-color background caused by failing printheads on the cXX3 series. If cleaning up the ribbon cables doesn't work, try swapping color lasers to see if the problem moves.

  7. #7
    Service Manager 1,000+ Posts
    C203 magenta completely across prints

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    Re: C203 magenta completely across prints

    How Big of a job is it to swap printheads? I’ve never had to do that on one of these

  8. #8
    Certified Konica Expert 2,500+ Posts
    C203 magenta completely across prints

    Synthohol's Avatar
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    Re: C203 magenta completely across prints

    is there a corona cleaner stuck halfway?
    swap drums around yet?
    We know a thing or two because we've seen a thing or two.
    Also don't ask me for files without a contributor badge.

  9. #9
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    Re: C203 magenta completely across prints

    There are some little clips that can be annoying, but I'd rate it as one of the easier KM machines for PH swaps. Just take your time when seating the printheads, making sure they are snugged up nicely.

  10. #10
    Service Manager 2,500+ Posts
    C203 magenta completely across prints


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    Re: C203 magenta completely across prints

    It's a big job to swap or replace the print heads. Don't look into this too much. Replace the magenta Image unit and be done with it!

    Yes image units can go all of a sudden. Bad laser would be more of blank page, no image problem, not color on page.

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