Sharp MX4070 blue partially missi

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  • Profibastler
    Technician

    50+ Posts
    • Nov 2014
    • 93

    #1

    [Misc] Sharp MX4070 blue partially missi

    Hello,
    there are fall outs in blue when print via PC.
    C-Devunit, C-drum changed, original toner new.
    Problem the same, see picture.

    Please help, any ideas?
    Attached Files
  • copiertec
    Service Manager

    Site Contributor
    1,000+ Posts
    • Jan 2016
    • 2184

    #2
    Re: Sharp MX4070 blue partially missi

    Have you inspected and cleaned Cyan laser unit?

    Comment

    • ricohrice
      Technician
      • Dec 2008
      • 38

      #3
      Re: Sharp MX4070 blue partially missi

      Clean your Laser unit, dirt on the mirrors or the slit glass

      Comment

      • MHeon71
        Trusted Tech

        Site Contributor
        VIP Subscriber
        250+ Posts
        • Oct 2008
        • 487

        #4
        Re: Sharp MX4070 blue partially missi

        I agree with Ricohrice and Copiertec. Look at the LSU slit glass. Are you saying that toner is the original toner? I would imagine it has been in the machine for quite a while, along with your other supplies. I would check the cyan DV unit. If the brush on the DV unit is the issue, you will see it. Doubtful, but did you just rebuild the cyan process unit? If so, is everything seated properly, especially the cover over the main charge. I haven't seated it properly before and I would get CQ.

        I would print a 22-6 and see how long the supplies have been in the machine. If your supplies are pushing 2000 days, you should be having CQ issues shortly.

        Comment

        • Profibastler
          Technician

          50+ Posts
          • Nov 2014
          • 93

          #5
          Re: Sharp MX4070 blue partially missi

          Thanks for help.
          What you mean about CQ?

          Comment

          • MHeon71
            Trusted Tech

            Site Contributor
            VIP Subscriber
            250+ Posts
            • Oct 2008
            • 487

            #6
            Re: Sharp MX4070 blue partially missi

            copy quality

            Comment

            • chatkal
              Technician
              • Aug 2015
              • 47

              #7
              Re: Sharp MX4070 blue partially missi

              Originally posted by Profibastler
              Hello,
              there are fall outs in blue when print via PC.
              C-Devunit, C-drum changed, original toner new.
              Problem the same, see picture.

              Please help, any ideas?


              Do you see lines on the mag roller of the С DV unit?

              Comment

              • Profibastler
                Technician

                50+ Posts
                • Nov 2014
                • 93

                #8
                Re: Sharp MX4070 blue partially missi

                Originally posted by ricohrice
                Clean your Laser unit, dirt on the mirrors or the slit glass
                Now it works, glass was dirty.

                Comment

                • Profibastler
                  Technician

                  50+ Posts
                  • Nov 2014
                  • 93

                  #9
                  Re: Sharp MX4070 blue partially missi

                  Originally posted by kevin32305
                  你的鼓座外蓋沒有安裝好
                  Aha

                  Comment

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