Bizhub c360 white dots on cyan

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  • smiley
    Senior Tech

    500+ Posts
    • Aug 2008
    • 615

    #1

    Bizhub c360 white dots on cyan

    Good day guys. Please anyone incounter this before there are white spots on cyan color. I already replaced cyan iu and clean evry thing. Like itb and transfer rollers.and its only in cyan other colors are good.
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    there is no glory without sacrifice
  • Zeldaman
    Senior Tech

    500+ Posts
    • Mar 2011
    • 946

    #2
    Re: Bizhub c360 white dots on cyan

    Hi there!
    If the itb realy is OK, i would take a close look at the hv-contacts (springs). When they have no proper contact, this can cause such issues.
    Greetings...

    Comment

    • AhmedChamumi
      Trusted Tech

      Site Contributor
      100+ Posts
      • May 2016
      • 131

      #3
      Re: Bizhub c360 white dots on cyan

      Originally posted by smiley
      Good day guys. Please anyone incounter this before there are white spots on cyan color. I already replaced cyan iu and clean evry thing. Like itb and transfer rollers.and its only in cyan other colors are good.
      Hi,

      You mentioned having replaced IU do you mean developing unit as well as drum unit? I have experienced similar fault whereas the main cause was bad toner though the HV could also cause such a fuss.

      Best of regards,

      Ahmed R. Chamumi.

      Comment

      • Max
        Senior Tech

        500+ Posts
        • Oct 2011
        • 561

        #4
        Re: Bizhub c360 white dots on cyan

        What do you mean by Iu? Those copiers dont thave them. Seperate dev unit and seperate drum unit. This looks like dev to me though.

        Comment

        • smiley
          Senior Tech

          500+ Posts
          • Aug 2008
          • 615

          #5
          Re: Bizhub c360 white dots on cyan

          Thanks for the reply guys. Imean i change the cyan drum with same result this machine only have 70k copies on it and 57k is black. What should i do with developer guys do i have to replace it?
          there is no glory without sacrifice

          Comment

          • Max
            Senior Tech

            500+ Posts
            • Oct 2011
            • 561

            #6
            Re: Bizhub c360 white dots on cyan

            Yep,replace the dev unit and use original toner.

            Comment

            • smiley
              Senior Tech

              500+ Posts
              • Aug 2008
              • 615

              #7
              Re: Bizhub c360 white dots on cyan

              thanks for the idea guys. i will try to correct the spring on developer and try to replaced it and i will update you if i got a solution. thank you all.
              there is no glory without sacrifice

              Comment

              • EarthKmTech
                Step aside, noob

                1,000+ Posts
                • May 2009
                • 2139

                #8
                Re: Bizhub c360 white dots on cyan

                poor quality paper also causes this problem.

                try good quality paper and see if the problem is resolved. If so, its not the machine.

                Comment

                • Matt

                  #9
                  Re: Bizhub c360 white dots on cyan

                  Originally posted by EarthKmTech
                  poor quality paper also causes this problem.

                  try good quality paper and see if the problem is resolved. If so, its not the machine.
                  Have you tried to do gradation adjust?

                  Comment

                  • blackcat4866
                    Master Of The Obvious

                    Site Contributor
                    10,000+ Posts
                    • Jul 2007
                    • 23009

                    #10
                    Re: Bizhub c360 white dots on cyan

                    Yeah, it looks like undertoned developer to me too. I'm wondering how the TCR sensors read, especially cyan. Maybe hopper bushings?

                    It must be resolved by now, yes? =^..^=
                    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 =^..^=

                    Comment

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