KM-255c misfeeds J4211

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  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22999
    #1

    KM-255c misfeeds J4211

    This Hanabi will feed fine for an hour, then when it's ready it will jam every page for a while. It's always J4211 which is ES (eject sensor).

    I changed the photointerrupter from scrap, which worked fine for about an hour. Then I though perhaps the two part flag linkage to the sensor was disengaging, because perhaps the gate was opening during feeding. So I used paper shims to shim that gate tightly closed. It worked nicely ... for about an hour. It did seem to primarily affect prints and internal reports, but that may be a coincidence. The main user had the wrong driver, and I thought I really had something ... for about an hour.

    Firmware is up to date. I haven't yet removed the bridge unit, and examined the bridge switches/sensors. There are always three pages remaining: one most of the way into the bridge, one page 25mm into the fuser, and one page at the lip of tray #1. I do not suspect the tray #1 feed unit, and the feed unit itself has been replaced prior to my visit. I do not suspect the fuser drive.

    Has anybody seen these J4211 jams? =^..^=
    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 =^..^=
    Tags: None
    • copymech
      Trusted Tech

      100+ Posts
      • Sep 2011
      • 196
      #2
      Re: KM-255c misfeeds J4211

      Remove and reinstall your bridge unit. you may find a faulty connection

        Comment

        • B0265
          Senior Tech

          500+ Posts
          • Jan 2007
          • 718
          #3
          Re: KM-255c misfeeds J4211

          You might find the solution in the attached file.
          Attached Files

            Comment

            • blackcat4866
              Master Of The Obvious

              Site Contributor
              10,000+ Posts
              • Jul 2007
              • 22999
              #4
              Re: KM-255c misfeeds J4211

              Originally posted by B0265
              You might find the solution in the attached file.
              Nice thought. That fuser is similar but does not have that spring/lever combination. =^..^=
              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

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22999
                  #5
                  Re: KM-255c misfeeds J4211

                  Originally posted by copymech
                  Remove and reinstall your bridge unit. you may find a faulty connection
                  Does three times count? The bridge unit checks out visually. I'm leaning towards a heat issue affecting ES.

                  The machine jams without the bridge. I quoted a fuser. =^..^=
                  Last edited by blackcat4866; 08-05-2015, 05:15 PM.
                  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

                    • jmaister
                      certified scrub

                      Site Contributor
                      500+ Posts
                      • Aug 2010
                      • 755
                      #6
                      Re: KM-255c misfeeds J4211

                      theres a qa on this.

                      the cause is due to the main spring in the fuser drive pack binding.

                      the tip digs into the gear, and the other end catch on the metal plate so its tension kept building up to the point its strong enough to trip speed detection.(slowed)

                      the fix is to have two shims on each side of the spring so that the spring spins with the gear and the tension never increases. as well, bend the tips inward, or order new stock.

                      just lubing byitself is only good for 900 print... i tried that, but for permanent solution the shims are needed
                      Idling colour developers are not healthy developers.

                        Comment

                        • blackcat4866
                          Master Of The Obvious

                          Site Contributor
                          10,000+ Posts
                          • Jul 2007
                          • 22999
                          #7
                          Re: KM-255c misfeeds J4211

                          Originally posted by jmaister
                          theres a qa on this.

                          the cause is due to the main spring in the fuser drive pack binding.

                          the tip digs into the gear, and the other end catch on the metal plate so its tension kept building up to the point its strong enough to trip speed detection.(slowed)

                          the fix is to have two shims on each side of the spring so that the spring spins with the gear and the tension never increases. as well, bend the tips inward, or order new stock.

                          just lubing byitself is only good for 900 print... i tried that, but for permanent solution the shims are needed
                          Terrific! Thanks jmaister. Do you recall the shaft size, so that I can have the right shims/spacers on-hand?
                          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

                            • jmaister
                              certified scrub

                              Site Contributor
                              500+ Posts
                              • Aug 2010
                              • 755
                              #8
                              Re: KM-255c misfeeds J4211

                              Originally posted by blackcat4866
                              Terrific! Thanks jmaister. Do you recall the shaft size, so that I can have the right shims/spacers on-hand?
                              QA_E044_2NP_0005_SB_rev.1.pdf

                              That's the QA.

                              there are 2 polislider washer, and I think Kyocera went screwy on one of the part No.

                              Washer A: diameter 20mm, thickness 0.5mm

                              Washer B: diameter 18mm, thickness 0.25mm

                              What's interesting about washer B is the actual part No. By this QA maybe they wanted to simplify it to be BC134840, but end up being 7BC06062J025C01<--- we ordered with this.

                              KDA has 1 case also point to the fuser itself, to cover all basis.
                              Idling colour developers are not healthy developers.

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 22999
                                  #9
                                  Re: KM-255c misfeeds J4211

                                  Perfect, thanks.
                                  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

                                    • tmaged
                                      Owner/Service Manager

                                      Site Contributor
                                      1,000+ Posts
                                      • Oct 2008
                                      • 1869
                                      #10
                                      Re: KM-255c misfeeds J4211

                                      Originally posted by jmaister
                                      theres a qa on this.

                                      the cause is due to the main spring in the fuser drive pack binding.

                                      the tip digs into the gear, and the other end catch on the metal plate so its tension kept building up to the point its strong enough to trip speed detection.(slowed)

                                      the fix is to have two shims on each side of the spring so that the spring spins with the gear and the tension never increases. as well, bend the tips inward, or order new stock.

                                      just lubing byitself is only good for 900 print... i tried that, but for permanent solution the shims are needed
                                      I tried searching the wonderful database for the QA, but nothing. Do you have the number or can you post the QA ?
                                      Hope that helps !
                                      -Tony
                                      www.dtios.com
                                      Become a fan on Facebook

                                        Comment

                                        • jmaister
                                          certified scrub

                                          Site Contributor
                                          500+ Posts
                                          • Aug 2010
                                          • 755
                                          #11
                                          Re: KM-255c misfeeds J4211

                                          Originally posted by tmaged
                                          I tried searching the wonderful database for the QA, but nothing. Do you have the number or can you post the QA ?
                                          yep, I've posted it.(its up there with previous msgs)

                                          QA_E044_2NP_0005_SB_rev.1

                                          Getting the key word right searching the database IS A PAIN, tho this thing I just realized is only 2 months old.
                                          Idling colour developers are not healthy developers.

                                            Comment

                                            • tmaged
                                              Owner/Service Manager

                                              Site Contributor
                                              1,000+ Posts
                                              • Oct 2008
                                              • 1869
                                              #12
                                              Re: KM-255c misfeeds J4211

                                              Originally posted by jmaister
                                              yep, I've posted it.(its up there with previous msgs)

                                              QA_E044_2NP_0005_SB_rev.1

                                              Getting the key word right searching the database IS A PAIN, tho this thing I just realized is only 2 months old.
                                              Not sure how I didn't see that ! I wish I drank, so I'd have an excuse.
                                              Hope that helps !
                                              -Tony
                                              www.dtios.com
                                              Become a fan on Facebook

                                                Comment

                                                • Kyo fan
                                                  Trusted Tech

                                                  250+ Posts
                                                  • Dec 2013
                                                  • 368
                                                  #13
                                                  Re: KM-255c misfeeds J4211

                                                  I missed this one too. Thanks for sharing jmaister.

                                                    Comment

                                                    • blackcat4866
                                                      Master Of The Obvious

                                                      Site Contributor
                                                      10,000+ Posts
                                                      • Jul 2007
                                                      • 22999
                                                      #14
                                                      Re: KM-255c misfeeds J4211

                                                      I'll confirm that this works like a charm. The only hazard I can see is snapping off the vulnerable plastic snaps attaching the two sides of the fuser drive pack, that by all appearances are entirely redundant, and unnecessary. After bending back both ends of the spring, I installed three shims: first between the metal frame and the spring, second between the spring and the inner gear, and third between the outer gear and the frame. And I slathered each of these spacer/shims with a little white lithium grease. 100% 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

                                                        • jmaister
                                                          certified scrub

                                                          Site Contributor
                                                          500+ Posts
                                                          • Aug 2010
                                                          • 755
                                                          #15
                                                          Re: KM-255c misfeeds J4211

                                                          i saw the the actuall spring the other day, I think Kyocera has overdone it.

                                                          Make neccessary adjustment if you need to. Just remember that the purpose is not for spring ends to catch the surface its pressing against.
                                                          Idling colour developers are not healthy developers.

                                                            Comment

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