Designjet 500 has started printing bands on prints NOTHING seems to fix this problem.

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  • D Hook
    Trusted Tech

    100+ Posts
    • Mar 2018
    • 205

    #46
    Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

    Originally posted by RHOPKINS
    I sent you a private message, but did not see a confirmation you got it. Let me know if you didn't get it.
    Yes, I got it and replied.

    Some pix attached. Sorry about the crappy focus. Not the best phone.
    If you have questions let me know. The cap has been removed to see the part numbers. the encoder wheel is clean and scratch free.
    Attached Files

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    • D Hook
      Trusted Tech

      100+ Posts
      • Mar 2018
      • 205

      #47
      Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

      The ones I've changed have just been put on with adhesive.

      Comment

      • Kiran Otter
        Service Manager

        Site Contributor
        VIP Subscriber
        1,000+ Posts
        • Dec 2013
        • 1106

        #48
        Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

        Originally posted by D Hook
        The ones I've changed have just been put on with adhesive.
        Yes, they're just glued on.

        Kiran

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        • RHOPKINS
          Technician

          50+ Posts
          • Jun 2022
          • 64

          #49
          Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

          Originally posted by D Hook
          Yes, I got it and replied.

          Some pix attached. Sorry about the crappy focus. Not the best phone.
          If you have questions let me know. The cap has been removed to see the part numbers. the encoder wheel is clean and scratch free.

          Oh that is great D. Hook, I understand about the pics. Can't wait to install it.

          Comment

          • RHOPKINS
            Technician

            50+ Posts
            • Jun 2022
            • 64

            #50
            Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

            Originally posted by Kiran Otter
            Yes, they're just glued on.

            Kiran
            Hmm, Super Glue or regular plastic cement. I have both. Is that some kind of special grease used to lube the gears? Mine are dry as a bone.

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            • Kiran Otter
              Service Manager

              Site Contributor
              VIP Subscriber
              1,000+ Posts
              • Dec 2013
              • 1106

              #51
              Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

              The disc is like a sticker, you peel the backing off and stick it on.. no glue needed.

              The grease is lithium.. don't use a petroleum-based grease, it will melt the plastics. And it only needs a tiny bit on the gears. If there's any left, I'd leave it as is.

              Kiran

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              • D Hook
                Trusted Tech

                100+ Posts
                • Mar 2018
                • 205

                #52
                Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                Yes, just a sticky-back adhesive like a peel off label.

                Good to know about the grease. Been wondering that myself. Be sparing with it.

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                • RHOPKINS
                  Technician

                  50+ Posts
                  • Jun 2022
                  • 64

                  #53
                  Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                  Originally posted by Kiran Otter
                  The disc is like a sticker, you peel the backing off and stick it on.. no glue needed.

                  The grease is lithium.. don't use a petroleum-based grease, it will melt the plastics. And it only needs a tiny bit on the gears. If there's any left, I'd leave it as is.

                  Kiran
                  I thought it might be lithium but wanted to make sure first. Richard

                  Comment

                  • RHOPKINS
                    Technician

                    50+ Posts
                    • Jun 2022
                    • 64

                    #54
                    Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                    Hi Hiran and D. Hook;

                    Well, we will wait on the parts to arrive. A friend was over this evening and he suggested that I do a video of the teardown to replace the encoder disc and axis motor. I own a high resolution video camera and studio lights so I could definitely get a 1080p video. Do you guys think I should attempt this task when I begin my second disassembly of the printer? Richard

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                    • RHOPKINS
                      Technician

                      50+ Posts
                      • Jun 2022
                      • 64

                      #55
                      Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                      Have finished installing the encoder and sensor, and replaced the axis motor assembly, cleaned up the gears etc. I fired it up and now I get a 21:10 error. Guess I have a issue with the ISS unit. So I am going to tear it down and see what I find.

                      Comment

                      • RHOPKINS
                        Technician

                        50+ Posts
                        • Jun 2022
                        • 64

                        #56
                        Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                        ISS unit will be here tomorrow. The old ISS had so much dry ink in it no wonder it failed. I will update tomorrow night.

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                        • RHOPKINS
                          Technician

                          50+ Posts
                          • Jun 2022
                          • 64

                          #57
                          Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                          Well after replacing the ISS unit fixed the error and the machine is functioning normally. Now I am getting a indication that the black printhead is bad. I had just replaced all the heads a month ago. There might be 20 minutes usage on this set of heads. The printhead says it has a code 34. I can't find anything that explains this error. Also, I purged the ink lines before I turned the machine on after replacing the ISS assembly. Air in the line should have been eliminated. Anybody know a solution besides another printhead?

                          Richard

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                          • RHOPKINS
                            Technician

                            50+ Posts
                            • Jun 2022
                            • 64

                            #58
                            Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob



                            Final note:
                            The encoder and disc were bad causing the streaks. The bad printhead turned out to be two defective ink cartridges. After replacing the black and yellow cartridges all works perfectly. Thanks everyone for your support in fixing this DJ500.

                            Richard

                            Comment

                            • blackcat4866
                              Master Of The Obvious

                              Site Contributor
                              10,000+ Posts
                              • Jul 2007
                              • 22997

                              #59
                              Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                              Originally posted by RHOPKINS


                              Final note:
                              The encoder and disc were bad causing the streaks. The bad printhead turned out to be two defective ink cartridges. After replacing the black and yellow cartridges all works perfectly. Thanks everyone for your support in fixing this DJ500.

                              Richard
                              Thanks for posting back. Congratulations.
                              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

                              • RHOPKINS
                                Technician

                                50+ Posts
                                • Jun 2022
                                • 64

                                #60
                                Re: Designjet 500 has started printing bands on prints NOTHING seems to fix this prob

                                Originally posted by blackcat4866
                                Thanks for posting back. Congratulations.


                                Thanks blackcat for your input on my repair. We live and learn from experience. Talk at you again down the road.

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