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  1. #1
    Technician pick's Avatar
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    KM C360 Yellow Shading on Copies & Prints

    Hi,
    I have an issue I've never come across before that has me totally stumped. I have a Konica C360 that's giving me very strange yellow shading on both copies and prints, however I cannot replicate this on EVERY copy and print. It's very sporadic. I will attach PDFs of the examples I have. The shading does not seem like a failing DV or Drum, it's very defined and patterned. Thanks in advance. Yellow Shading C360 Scan2.pdfYellow Shading C360 Scan.pdf

  2. #2
    SanDiegoCopierRepair.com 1,000+ Posts
    KM C360 Yellow Shading on Copies & Prints

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    Re: KM C360 Yellow Shading on Copies & Prints

    Quote Originally Posted by pick View Post
    Hi,
    I have an issue I've never come across before that has me totally stumped. I have a Konica C360 that's giving me very strange yellow shading on both copies and prints, however I cannot replicate this on EVERY copy and print. It's very sporadic. I will attach PDFs of the examples I have. The shading does not seem like a failing DV or Drum, it's very defined and patterned. Thanks in advance. Yellow Shading C360 Scan2.pdfYellow Shading C360 Scan.pdf
    Do the copy quality adjustments (gradiation) first. And then, even if it doesn't appear to be a drum issue---so easy to swap a color drum on this model. So do that to see if problem moves.

    Possible causes:

    Drum unit issue
    DV unit issue (most likely cause)
    Aftermarket toner
    PH unit (but I doubt it - but check cable and clean it anyway)

    Initialize and run the gradiation adjustments
    Last edited by blazebusiness; 08-25-2020 at 05:23 PM.
    Anything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

  3. #3
    Senior Tech 250+ Posts
    KM C360 Yellow Shading on Copies & Prints

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    Re: KM C360 Yellow Shading on Copies & Prints

    I would start by disassembling and cleaning the laser unit. I've seen cases of flat being the problem. Because it is sporadic, it may be some bad contact or dirt in the image formation process.


    As I said above, I would start by disassembling and cleaning the laser.
    Nothing like day after day

  4. #4
    Trusted Tech 50+ Posts
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    Re: KM C360 Yellow Shading on Copies & Prints

    Hi!

    What about consumables life?

    Had similar issue with that and after refurbishing DV unit with powder and reset chip I fixed it.

    This is my opinion.

    TY

  5. #5
    Field Supervisor 500+ Posts
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    Re: KM C360 Yellow Shading on Copies & Prints

    this is digital looking, ram, print head, most likely a loose connection between mpf and print head.

  6. #6
    Service Manager 2,500+ Posts tsbservice's Avatar
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    Re: KM C360 Yellow Shading on Copies & Prints

    Agree looks like PH unit to me or ribbon cable.
    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.

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