C3350i High Frequency Noise

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  • i-have-fax-problems
    Technician
    50+ Posts
    • Mar 2020
    • 83

    C3350i High Frequency Noise

    Has anyone heard this noise:


    High Frequency. Customer says it only happens with duplex print. But I'm not sure.
  • jwai
    Trusted Tech
    250+ Posts
    • May 2018
    • 478

    #2
    Re: C3350i High Frequency Noise

    tighten all screws again and test.

    Comment

    • kingarthur
      Service Manager
      1,000+ Posts
      • Feb 2008
      • 1149

      #3
      Re: C3350i High Frequency Noise

      sounds fine to me.....but then I wear hearing aids, I love dealing with noisy machines , they always sound good to me....
      Tip for the day; Treat every problem as your dog would.....If you cant eat it or f*ck it....then p*ss on it & walk away...

      Comment

      • tsbservice
        Field tech
        Site Contributor
        5,000+ Posts
        • May 2007
        • 7387

        #4
        Re: C3350i High Frequency Noise

        Sounds like dry drum axle, try to lube it a bit.
        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.

        Comment

        • tech51
          Senior Tech
          500+ Posts
          • Jan 2009
          • 837

          #5
          Re: C3350i High Frequency Noise

          Originally posted by i-have-fax-problems
          Has anyone heard this noise:


          High Frequency. Customer says it only happens with duplex print. But I'm not sure.
          Those thing are full of plastic on plastic bushes that can squeak or make a noise like that.

          Lubricate every bushing and roller you can find (especially in the exit section).

          I use an aerosol penetrating oil (not WD40 by the way), seems to cure noises quite well

          Comment

          • aberock
            Technician
            Site Contributor
            50+ Posts
            • May 2022
            • 75

            #6
            Re: C3350i High Frequency Noise

            Originally posted by i-have-fax-problems
            Has anyone heard this noise:


            High Frequency. Customer says it only happens with duplex print. But I'm not sure.
            go for load check . will be easier to detect the problem .

            Comment

            • rolls.bo
              Technician
              • Sep 2014
              • 37

              #7
              Re: C3350i High Frequency Noise

              in the C3350i and C4050i models it happens very often that the transfer belt exhaust system gets clogged and starts making these types of noises until it goes out of code.
              Clean the exhaust system before it stops.
              HI

              Comment

              • i-have-fax-problems
                Technician
                50+ Posts
                • Mar 2020
                • 83

                #8
                Re: C3350i High Frequency Noise

                Yesterday I was there and first I printed the counter list. No noise. Then I printed the c-m-y-k gradiation pages (all 4 in one step you know). With cyan, yellow and magenta noise was there, with black not. Then I lubed all drum axes with oil
                on front and rear end. Noise was still there. Then I tried with load check all motors and so on. No noise. Then no noise any more. My two colleagues who where there before me had the same issue. Noise was gone after some trying and testing.
                Today customer phoned us. Noise is here again.

                Comment

                • DeWalt_Man
                  Junior Member
                  • Jul 2023
                  • 4

                  #9
                  Re: C3350i High Frequency Noise

                  Originally posted by tsbservice
                  Sounds like dry drum axle, try to lube it a bit.
                  I've found that on occasion sometimes debris can cause it if its under the silicone flap. I've had a few drums get massive gouges in them in the bigger MFDs, havent heard anything about the C3000i series tho

                  Comment

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