Konica Minolta Bizhub C224

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  • Duhstracted
    Technician
    • Nov 2024
    • 16

    #16
    is there a way to test if it is the yellow developer?

    Comment

    • Ziggy
      Senior Tech

      Site Contributor
      VIP Subscriber
      500+ Posts
      • Feb 2018
      • 733

      #17
      In Yellow?
      If yes try cleaning the laser slit glass with the wand in the front door. If you still have problem with yellow then you may have a yellow developer unit problem. If that is the case its time to call your tech back out.

      Comment

      • Ziggy
        Senior Tech

        Site Contributor
        VIP Subscriber
        500+ Posts
        • Feb 2018
        • 733

        #18
        Originally posted by Duhstracted
        is there a way to test if it is the yellow developer?
        You would have to pull the yellow developer unit. I don't recommend this for a user. You can cost yourself more if your not careful

        Comment

        • Duhstracted
          Technician
          • Nov 2024
          • 16

          #19
          Thank you so much for all of your help.

          Comment

          • copyman
            Owner / Technician

            Site Contributor
            2,500+ Posts
            • Sep 2005
            • 4705

            #20
            No one here commented on the invoice. 8 hours labor @ $90 per hr to install a transfer belt, drum, & developer unit. Something is wrong here. That work should take less than 1 hour. You have to tell the tech he fixes the machine for no additional charge or you don't pay the original invoice! If a tech can't diagnose that issue within 1 hour he doesn't know what he is doing, and you should call a different tech. I hate this type of crap, it gives all us techs a bad name. Plus that is a 15 yr old copier, why would you put $1500 into that old machine. You could get a newer C258 for around $2k.

            Show the tech this post if you want to.

            Comment

            • Ziggy
              Senior Tech

              Site Contributor
              VIP Subscriber
              500+ Posts
              • Feb 2018
              • 733

              #21
              Originally posted by copyman
              No one here commented on the invoice. 8 hours labor @ $90 per hr to install a transfer belt, drum, & developer unit. Something is wrong here. That work should take less than 1 hour. You have to tell the tech he fixes the machine for no additional charge or you don't pay the original invoice! If a tech can't diagnose that issue within 1 hour he doesn't know what he is doing, and you should call a different tech. I hate this type of crap, it gives all us techs a bad name. Plus that is a 15 yr old copier, why would you put $1500 into that old machine. You could get a newer C258 for around $2k.

              Show the tech this post if you want to.
              I was focused on the copy quality issue but you are correct on the amount of time it should take and the age of the machine . I also just noticed they charged a shipping and handling fee. Don't know why that would be done either

              Comment

              • kingarthur
                Service Manager

                1,000+ Posts
                • Feb 2008
                • 1357

                #22
                Originally posted by copyman
                No one here commented on the invoice. 8 hours labor @ $90 per hr to install a transfer belt, drum, & developer unit. Something is wrong here. That work should take less than 1 hour. You have to tell the tech he fixes the machine for no additional charge or you don't pay the original invoice! If a tech can't diagnose that issue within 1 hour he doesn't know what he is doing, and you should call a different tech. I hate this type of crap, it gives all us techs a bad name. Plus that is a 15 yr old copier, why would you put $1500 into that old machine. You could get a newer C258 for around $2k.

                Show the tech this post if you want to.
                I've just got to this post, I was also wondering how any half decent tech can spend 8 hours on a machine. Should never spend more than an hour diagnosing and fitting those parts
                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

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 23008

                  #23
                  Try these patterns:

                  70% cyan image will not present the issue, but 11% cyan may. It's the 5% to 11% fill images that show finer quality issues.
                  Attached Files
                  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

                  • Duhstracted
                    Technician
                    • Nov 2024
                    • 16

                    #24
                    Originally posted by blackcat4866
                    Try these patterns:

                    70% cyan image will not present the issue, but 11% cyan may. It's the 5% to 11% fill images that show finer quality issues.
                    Here are the test pages. The scanner isn't do them appropriate justince but I think you van get the idea

                    Attached Files

                    Comment

                    • danbb
                      Junior Member

                      Site Contributor
                      • Jul 2021
                      • 6

                      #25
                      Originally posted by Duhstracted

                      Here are the test pages. The scanner isn't do them appropriate justince but I think you van get the idea
                      Did you still have the magenta and yellow drums swapped when you printed these?

                      Comment

                      • blackcat4866
                        Master Of The Obvious

                        Site Contributor
                        10,000+ Posts
                        • Jul 2007
                        • 23008

                        #26
                        IMG_0655 tells the whole story. in the 30% bars crossfeed you'll see distinct voids in black, cyan and magenta. Same voids can be seen even better on the individual 11% color pages: IMG_656, IMG_0657, IMG_0658. Causes for these voids can be:

                        * optical - dirty slit glass, fuzz obstructing the laser optical path (in the drum unit), dirty laser mirrors.
                        * charge - contaminated grid and/or charge wire. Problem can be moved to another color by swapping drums.
                        * drum - wear. Problem can be moved to another color by swapping drums.
                        * developing - observe the developer brush on the developing roller. Voids on the developing roller are caused by contamination under the doctor blade.

                        It can be any of these. Taking photos was a good idea.

                        I just dumped a lot of technical jargon on you. Ask more questions.=^..^=
                        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

                        • Duhstracted
                          Technician
                          • Nov 2024
                          • 16

                          #27
                          Originally posted by blackcat4866
                          IMG_0655 tells the whole story. in the 30% bars crossfeed you'll see distinct voids in black, cyan and magenta. Same voids can be seen even better on the individual 11% color pages: IMG_656, IMG_0657, IMG_0658. Causes for these voids can be:

                          * optical - dirty slit glass, fuzz obstructing the laser optical path (in the drum unit), dirty laser mirrors.
                          * charge - contaminated grid and/or charge wire. Problem can be moved to another color by swapping drums.
                          * drum - wear. Problem can be moved to another color by swapping drums.
                          * developing - observe the developer brush on the developing roller. Voids on the developing roller are caused by contamination under the doctor blade.

                          It can be any of these. Taking photos was a good idea.

                          I just dumped a lot of technical jargon on you. Ask more questions.=^..^=
                          We have moved the drums and the problem did not get better. I believe that you clean the silt glass with the wand that stays inside the machine, this has also been done several times and now I need a new wand cause the tech guy all but killed it. I can order another and try that. How would I observe the developer brush on the developing roller? You aren't anywhere near San Rafael are you?? lol This has been more help than the $1500 and I got a cool picture of the ventruvian man!

                          Comment

                          • copyman
                            Owner / Technician

                            Site Contributor
                            2,500+ Posts
                            • Sep 2005
                            • 4705

                            #28
                            Originally posted by Duhstracted

                            We have moved the drums and the problem did not get better. I believe that you clean the silt glass with the wand that stays inside the machine, this has also been done several times and now I need a new wand cause the tech guy all but killed it. I can order another and try that. How would I observe the developer brush on the developing roller? You aren't anywhere near San Rafael are you?? lol This has been more help than the $1500 and I got a cool picture of the ventruvian man!
                            You can buy just the pad for the cleaning wand. If that wand has sticky goo on the pad that can get on the laser windows which can cause print quality issues. Sounds like the tech you had was stupid enough to have used it that way and probably have sticky glue on one or all four of the laser windows.

                            Still curious about the 8 hours labor. Can you elaborate on that? Was he there for 8 hours straight, etc

                            Comment

                            • Duhstracted
                              Technician
                              • Nov 2024
                              • 16

                              #29
                              Originally posted by copyman

                              You can buy just the pad for the cleaning wand. If that wand has sticky goo on the pad that can get on the laser windows which can cause print quality issues. Sounds like the tech you had was stupid enough to have used it that way and probably have sticky glue on one or all four of the laser windows.

                              Still curious about the 8 hours labor. Can you elaborate on that? Was he there for 8 hours straight, etc
                              I will get a new pad for the wand. He was here two seperate days... maybe 4 hours each day or maybe he charged me travel time. I would have less issues if the problem was actually corrected.

                              Comment

                              • Duhstracted
                                Technician
                                • Nov 2024
                                • 16

                                #30
                                Originally posted by Duhstracted

                                I will get a new pad for the wand. He was here two seperate days... maybe 4 hours each day or maybe he charged me travel time. I would have less issues if the problem was actually corrected.
                                However, this problem was happening before he came out and ruined the wand. We were having the issue which is why we called him out in the first place.

                                Comment

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