TA 3552ci grinding noies w/C7301

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  • Samanator
    Service Manager

    Site Contributor
    VIP Subscriber
    500+ Posts
    • Sep 2017
    • 571
    #1

    TA 3552ci grinding noies w/C7301

    I have this 3552ci that I was called out to that was making a grinding noise. The customer had turned it off. When I switched on, it made a grinding noise for a bit then made a C7301 and of course stopped. O month before I had replaced the transfer belt unit and the PARTS BOX WASTE H ASSY SP because of a different grinding noise caused by toner rocks on the waste box and a non repairable stopped up transfer belt nozzle. When I pulled the drive unit (something I have sadly become very familiar with doing), the gear on the waste box moved very smoothly with no drag or hesitation at all . However looking back into the machine around where the black developer connects, I discovered all kinds of powder that I think is from a gear (see pictures). When I inspected the black developer unit, I discovered more of the same.

    This is the first time I have seen this before and heard the different grinding noise as well. Has anyone experienced this before?

    If you have, whats the fix, please?

    Thanks so much for any help.
    Attached Files
    Tags: box, grinding, noise, unit, waste
    • blackcat4866
      Master Of The Obvious

      Site Contributor
      10,000+ Posts
      • Jul 2007
      • 22968
      #2
      Re: TA 3552ci grinding noies w/C7301

      I'd suspect that the gears are wearing because the black developing unit is difficult turn. Back when we saw this issue on AlphardI's I tried disassembling a couple of developing units. Mostly all you end up with is a broken plastic housing. When it became clear that I wasn't going to have a usable developing unit, I abandoned that idea, and ordered a replacement. As far as I can tell the housings are all glued or welded, so it's just not coming apart into usable pieces.

      As a contributing factor I's check for generic toner. =^..^=
      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

        • Samanator
          Service Manager

          Site Contributor
          VIP Subscriber
          500+ Posts
          • Sep 2017
          • 571
          #3
          Re: TA 3552ci grinding noies w/C7301

          Thanks BC. Do you think I should replace those gears on the inside the machine? Looks like a bitch (like my ex) to get at.

          I will try another black developer unit and see if that straightens this out.

          This is a client that purchased the machine outright and did not take a service agreement. Not sure where they get their toner, but its not from us. And yes, the toner bottles in the machine are aftermarket.

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22968
              #4
              Re: TA 3552ci grinding noies w/C7301

              If it was an option, I'd like to temporarily swap in a used developing unit to see if it drives.

              If it does drive, I probably would not change those gears in the back. I would also tell my enduser that I suspect the aftermarket toner to be the cause, and if there was a re-occurrence I could not warranty the parts.

              If you can get a peek down inside the black developing unit, I suspect that you'll find that it's full to the brim with toner. You may also have backups in the toner add augers. Don't give an estimate that locks you in to a specific price or number of hours. It could be a major operation ... and if they continue to use the aftermarket toner, you may get another opportunity to do it again. =^..^=
              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

                • Samanator
                  Service Manager

                  Site Contributor
                  VIP Subscriber
                  500+ Posts
                  • Sep 2017
                  • 571
                  #5
                  Re: TA 3552ci grinding noies w/C7301

                  Put a different black black developer unit in it and when the machine came on it still made a racket, ran for a while during warmup, then C7301.

                  So it looks I gotta replace those gears; GEAR Z19L (302ND03440) and GEAR Z25R (302ND03450) found in parts under FIG. 6 Frame Base.

                  Ugh!

                    Comment

                    • blackcat4866
                      Master Of The Obvious

                      Site Contributor
                      10,000+ Posts
                      • Jul 2007
                      • 22968
                      #6
                      Re: TA 3552ci grinding noies w/C7301

                      Ugg, is right. =^..^=
                      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

                        • Samanator
                          Service Manager

                          Site Contributor
                          VIP Subscriber
                          500+ Posts
                          • Sep 2017
                          • 571
                          #7
                          Re: TA 3552ci grinding noies w/C7301

                          In one picture the worn gears that drive the black developer unit is quite apparent.

                          In the other picture, one can see how clean one can make the machine when replacing gears of this type.

                          Ugh!
                          Attached Files

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22968
                              #8
                              Re: TA 3552ci grinding noies w/C7301

                              That is a naked rear frame.

                              Nice & clean. Yeah those gears were toast. =^..^=
                              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

                                • Samanator
                                  Service Manager

                                  Site Contributor
                                  VIP Subscriber
                                  500+ Posts
                                  • Sep 2017
                                  • 571
                                  #9
                                  Re: TA 3552ci grinding noies w/C7301

                                  Now I have discovered that there is no way to remove the gears from the shafts without concealable destruction (pic Part xx).

                                  Nor is there a part number for the black assembly where they reside (pic Part X).

                                  Ugh!! this just keeps getting better.

                                  Have reached out to Kyocera parts with a nicely worded WTF??!!

                                  Stand by friends as we see what happens.....
                                  Attached Files

                                    Comment

                                    • blackcat4866
                                      Master Of The Obvious

                                      Site Contributor
                                      10,000+ Posts
                                      • Jul 2007
                                      • 22968
                                      #10
                                      Re: TA 3552ci grinding noies w/C7301

                                      If I'm viewing that correctly, those gears are on shafts riveted into the frame ... aka: not removable without drilling out the frame. =^..^=
                                      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

                                        • Samanator
                                          Service Manager

                                          Site Contributor
                                          VIP Subscriber
                                          500+ Posts
                                          • Sep 2017
                                          • 571
                                          #11
                                          Re: TA 3552ci grinding noies w/C7301

                                          Yup. That's the problem.

                                          Kyocera, you got some 'splanin' to do...

                                            Comment

                                            • Samanator
                                              Service Manager

                                              Site Contributor
                                              VIP Subscriber
                                              500+ Posts
                                              • Sep 2017
                                              • 571
                                              #12
                                              Attached Files

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                                                • blackcat4866
                                                  Master Of The Obvious

                                                  Site Contributor
                                                  10,000+ Posts
                                                  • Jul 2007
                                                  • 22968
                                                  #13
                                                  Re: TA 3552ci grinding noies w/C7301

                                                  Kyocera uses these split-rings on a lot of things. It looks like they were new enough that they didn't break.

                                                  When we were having so many problems with the Alphard3 transfer belt units, I took apart 6 or 7 of these units in the hopes of figuring what the hell was causing the transfer issue. Other than learning how to take them apart quickly, I never did determine what was causing the early failures.

                                                  If you need any more of those split-rings I have a pile of them.

                                                  Congratulations on your success. =^..^=
                                                  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

                                                    • BillyCarpenter
                                                      Field Supervisor

                                                      Site Contributor
                                                      VIP Subscriber
                                                      10,000+ Posts
                                                      • Aug 2020
                                                      • 16308
                                                      #14
                                                      Re: TA 3552ci grinding noies w/C7301


                                                      Good job. I enjoyed the read.
                                                      Adversity temporarily visits a strong man but stays with the weak for a lifetime.

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