C224 - c364 fuser noises

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  • EarthKmTech
    Step aside, noob

    1,000+ Posts
    • May 2009
    • 2139
    #1

    C224 - c364 fuser noises

    Just interested to know,

    now that you can buy individual parts to fix squeaks in the 554,654 & 754 fusing units - has anyone ever been able to fix the bearing knock noise from the smaller fusers as they age? They are on to the 9th revision now but have never addressed this....

    If its a fuser roller bearing I'll just continue to change the whole fuser. If its something else easy to change I can carry in my tool bag like the larger machines, It will save me having to walk back to the car
    Tags: None
    • habik
      Service Manager

      Site Contributor
      1,000+ Posts
      • Apr 2010
      • 2013
      #2
      Re: C224 - c364 fuser noises

      Do you get 600k out of it before the knocking starts? I have just replaced one yesterday due to worn rear side of belt marking top edge of A3 on halftones. When slowly turning gradual tension builds ending with knock (snap noise). When time allows will examine and let you know.


      Sent from my iDon't believe in marketing device using Tapatalk
      .OK Google! ... will I need Berrocca this morning?
      Firmwares HERE

        Comment

        • EarthKmTech
          Step aside, noob

          1,000+ Posts
          • May 2009
          • 2139
          #3
          Re: C224 - c364 fuser noises

          I changed one yesterday on a C224 that had never had a single call in its life - it was at 120k and the only complaint was the knock.

          I am surprised too, because it still had the ultra buggy initial release firmware on it too.

          Oh, and a customer mentioned today, WOW you've gained a lot of weight since I saw you last. I think I will continue walking back to the car

            Comment

            • Synthohol
              Certified Konica Expert

              Site Contributor
              5,000+ Posts
              • Mar 2016
              • 5739
              #4
              Re: C224 - c364 fuser noises

              The bulletin is old but all the sounds are still the same.
              I. Hope this helos some identify the noise correctly to help save money from parts unnecessarily replaced
              Attached Files
              We know a thing or two because we've seen a thing or two.
              The medication helps though...

                Comment

                • EarthKmTech
                  Step aside, noob

                  1,000+ Posts
                  • May 2009
                  • 2139
                  #5
                  Re: C224 - c364 fuser noises

                  Just had another one. Knocking at 64k total count.

                  Pulled fuser apart, bearings for belt pressure roller and pressure roller all have the grease boiled out of them. There are 4, part number A00V240600 ball bearing.

                  If the main large belt bearings have failed forget it, excessive disassembly required.

                  Changing these 4 is not exactly easy but its not rocket science either. Probably best repaired in a workshop.

                    Comment

                    • KCCI
                      Junior Member

                      Site Contributor
                      • Feb 2019
                      • 1
                      #6
                      Re: C224 - c364 fuser noises

                      Noticed a knocking noise coming from the fuser during warmup. After much investigation I found the culprit. I removed the pressure roller and found the short shaft had play in it. Took a hammer and pounded it back into the roller...problem solved! Put a large socket over it before you pound it. Don't want to damage the shaft!

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                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22942
                          #7
                          Re: C224 - c364 fuser noises

                          #6 is the only one that I try for. The cleaning roller bushings and bearings tear themselves up. It's really easy to diagnose: squealing, and the pile of rust dumping from either end from the fuser. If you catch it in time you can change the bushings and bearings. Quite often though the shaft is so worn down that it can't be used. =^..^=
                          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

                            • copyman
                              Owner / Technician

                              Site Contributor
                              2,500+ Posts
                              • Sep 2005
                              • 4539
                              #8
                              Re: C224 - c364 fuser noises

                              There have been a few bulletins for fuser noises in the 4 series. One I recall was a simple adjustment. Not sure if this has been posted already. If not I'll see if I can find the bulletin.

                              No way I'm replacing a fuser with 64k on it if it's the "very common" knocking noise I've heard a 1,000 times! The noise I'm talking about is when machine is idle.

                              I have changed some settings to make fuser stop turning sooner after last page exits. Not sure if it was something with the energy save/sleep mode settings. It's in the service manual.

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