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  1. #1
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    Konica C220 print quality problem

    Hello everybody A customer reports quality problems printing on black. He says that wavy print (see file)
    In My opinion The Problem is the BK Development Group.

    Do you have other ideas?SKMBT_C22021071912031.pdfSKMBT_C22021071912030.pdf

  2. #2
    Certified Konica Expert 2,500+ Posts
    Konica C220 print quality problem

    Synthohol's Avatar
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    Re: Konica C220 print quality problem

    needs a new black DV unit.
    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.

  3. #3
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: Konica C220 print quality problem

    K developer unit almost developer empty.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.

    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

  4. #4
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    Re: Konica C220 print quality problem

    Black developing unit 100%.
    I had the same issue. After replacing it everything was ok.

  5. #5
    Service Manager 500+ Posts femaster's Avatar
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    Re: Konica C220 print quality problem

    Just to add yet another +1 for the K dev unit. Make sure K drum isn't over life as well, replace if it is.
    A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager.
    My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

  6. #6
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    Re: Konica C220 print quality problem

    thank you all

    ok then I replace K dev unit

  7. #7
    Senior Tech 100+ Posts avecosat's Avatar
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    Re: Konica C220 print quality problem

    Also check the clutch of the dev unit K A0EDM20000

  8. #8
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    Re: Konica C220 print quality problem

    replaced Dev BK now everything works regularly

    thank you all

  9. #9
    Service Manager 2,500+ Posts
    Konica C220 print quality problem


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    Re: Konica C220 print quality problem

    Quote Originally Posted by ferro10 View Post
    replaced Dev BK now everything works regularly

    thank you all
    Like other poster mentioned replace black drum as well or you will be back there when the developer dumps again from over life drum shorting out.

    A lot of posts on this forum about "4 series dumping developer

  10. #10
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    Re: Konica C220 print quality problem

    Quote Originally Posted by copyman View Post
    Like other poster mentioned replace black drum as well or you will be back there when the developer dumps again from over life drum shorting out.

    A lot of posts on this forum about "4 series dumping developer
    For 4-5 days the printer worked regularly.
    now the same problem has been presented

    Now I try to change only the drum bk? or I have to change the dev bk again together with the drum?

    PS: Can it be a toner hopper problem that does not download toner inside the dev bk?
    Attached Files Attached Files
    Last edited by ferro10; 07-26-2021 at 05:55 PM.

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