Sharp Al - 1655 noisy fusers

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  • salmandol
    Trusted Tech

    100+ Posts
    • Mar 2009
    • 107

    #1

    Sharp Al - 1655 noisy fusers

    Anyone having noise problems with these fusers? I re-grease the bushings and stuff and in some machines this works fine but others it lasts no time at all.
  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22927

    #2
    That growl is typical of all the Puma and Jaguar series machines, especially after rebuilding or replacing a fuser. The cause is quite simple, but the solution less so.

    The fuser ring gear frequently does not engage the coupler gear in the main drive at exactly the right angle. I have had some success with shimming between the rear copier frame and the fuser frame, to change the gear engagement. If the rear fuser mounting screw is stripped or the rear frame busted out, find yourself a nice dumpster to put it in. The machine is not worth the amount of labor it would take to change out that frame.

    You may have some success with changing out the fuser assembly, since the plastic frame do warp. =^..^=
    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

    • OMD-227

      #3
      Originally posted by blackcat4866
      If the rear fuser mounting screw is stripped or the rear frame busted out, find yourself a nice dumpster to put it in. The machine is not worth the amount of labor it would take to change out that frame.

      Or get yourself a bigger screw.......

      Comment

      • bilyahn
        Service Manager

        1,000+ Posts
        • Dec 2006
        • 1467

        #4
        Have a question regarding these fusers, or specifically the fuser gear. Is there a difference between the AL series and the smaller AR series machines when it comes to this gear? We use a non-OEM gear that states it is for both machine series but if I remember right they actually have different part numbers. We almost always have some type of rumbling noise associated with these fusers and the gear get warped (starts to get elongated a little on one side and there is a small gap between the gear and the hear roller) fairly easily.

        Comment

        • donaldtex
          Technician
          • May 2009
          • 43

          #5
          I have had success eliminating the annoying [-r-r-R-R-R-R-R-r-r-r-rR-R-R-R-R] kinda up+down machine purr by replacing the spring-loaded little white double gear that drives the brown gear of the fuser unit (they call it gear#19 because it's part number ends in ...19) and both heat roller bushings,NOTE: NO oil or grease needed, and presto! noise's gone!

          To diminish the load of the whole unit I recommend to discard the pressure roller' metallic sheet of "fingers" (originally designed to avoid paper wrapping around the pressure roller) because when warped by use, difficults the roller from turning freely, hence damaging the gear#19.

          A little messy job (to take apart the gears unit and putting it back) though,
          Last edited by donaldtex; 08-22-2010, 01:51 PM. Reason: mispell

          Comment

          • bilyahn
            Service Manager

            1,000+ Posts
            • Dec 2006
            • 1467

            #6
            It's a little involved but I have only done it a couple of times and may have to start doing it more if it will help with the noise. Will have to try the shimming that blackcat mentioned. We are normally very careful about the plastic screws so don't have that issue very much. Very annoying for me and the customer. LOL

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22927

              #7
              I have used the same AR-xxx gear in both series with no difficulty. I've never tried it the other way. =^..^=
              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

              • oldrn
                Trusted Tech

                100+ Posts
                • Apr 2008
                • 166

                #8
                Try cleaning the lower fuser bushings as well as the upper ones. I had posted a question about these fusers earlier and someone suggested staying away from the grease. I tried it in one - after it twice took out the white gear in the drive unit mentioned above. I had tried new upper bushings and re-greasing the lower ones, but that didn't last long.

                Comment

                • salmandol
                  Trusted Tech

                  100+ Posts
                  • Mar 2009
                  • 107

                  #9
                  i've done all of these things except what blackcat mentioned but in some machines the noise just won't stay away. and i am talking about new machines with only few thousands of copies done some even hundreds. In the older models like al-1000's the fusers ran almost 100k without even being touched.I now thought of something, could it be the pressure roller losing its round shape? cause when you release the pressure the noise goes away. i have had this problem in ricoh machines where the pressure roller develop flat spots from sitting in one position to long, i'll have to try some and see.

                  Comment

                  • Dark Helmet
                    Senior Tech

                    Site Contributor
                    500+ Posts
                    • May 2009
                    • 830

                    #10
                    I gave up on that dam fuser. Ive been taking the AR208 fuser which has real pick off pawls on all the rollers and the black heat roller that does not double image as quick. The AR series for the most part have been ok. Ive had a couple machines throw H4 codes every now and again. Ive started swapping the thermistors when i change the fuser and so far so good. The AL series however did not like the 208 fuser. Always would throw H4's after energy save.

                    I did find if your drive gear was worn this fuser would make a hell of a noise. Youl could shim up the fuser below the rear frame screw to help but really it should be replaced.
                    Evil will always triumph because good is dumb.

                    Comment

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