Sharp mxc402b

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  • 1stcavvet
    Trusted Tech

    100+ Posts
    • Apr 2015
    • 231

    #1

    [CQ] Sharp mxc402b

    I had a problem with this machine 2 months ago. Got a call there was no cyan printing. When I got there The cyan developer was missing, unit was empty. Replaced the unit and the developer, calabrated and that lasted 2 months. now I get faint cyan print if any. checked the developer, still have developer in the unit, but no cyan print, or very very faint. ANY IDEAS? Thank you
  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22995

    #2
    Re: Sharp mxc402b

    Developer dumping is usually a symptom of charge arcing. On the medium to small Sharps it's good policy to change scorotron, grid, drum and developer, when you see developer has dumped. =^..^=
    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

    • 1stcavvet
      Trusted Tech

      100+ Posts
      • Apr 2015
      • 231

      #3
      Re: Sharp mxc402b

      I swapped drums in side the machine the light cyan problem stayed the way it was, I think the dv unit isn't turning(motor or clutch) or power or ground to the dv unit is faulty.

      Comment

      • blackcat4866
        Master Of The Obvious

        Site Contributor
        10,000+ Posts
        • Jul 2007
        • 22995

        #4
        Re: Sharp mxc402b

        Originally posted by 1stcavvet
        I swapped drums in side the machine the light cyan problem stayed the way it was, I think the dv unit isn't turning(motor or clutch) or power or ground to the dv unit is faulty.
        If the cyan developer is depleted again, it won't help to swap drums.

        You do what you think 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

        • 1stcavvet
          Trusted Tech

          100+ Posts
          • Apr 2015
          • 231

          #5
          Re: Sharp mxc402b

          ok, The developer unit is not depleted, it was 2 months ago, at that time I replaced the unit with new developer and calibrated and boom it made a great copy. Wind ahead 2 months I go out there a couple of days ago and no blue I do a single color copy in cyan and it is the palest it could be and be some cyan on the paper. I swapped the drums and the copy looked the same. Got to be some failure in the DV unit ????? now that I'm saying it out loud I think it could be some transfer failure in the ITB???? Well anyway I was hoping someone had a similar problem and Could me some for instance I could look at next. THANKS

          Comment

          • blackcat4866
            Master Of The Obvious

            Site Contributor
            10,000+ Posts
            • Jul 2007
            • 22995

            #6
            Re: Sharp mxc402b

            So the cyan developer could not possibly dump twice in two months? It might be a good idea to look before going any further. =^..^=
            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

            • 1stcavvet
              Trusted Tech

              100+ Posts
              • Apr 2015
              • 231

              #7
              Re: Sharp mxc402b

              The developer did not dump a second time , it all looks good. It just doesn't print good for some reason. way too light on the copy

              Comment

              • ntbann
                Senior Tech

                500+ Posts
                • Jan 2012
                • 626

                #8
                Re: Sharp mxc402b

                Is there a image on the drum? It could be the transfer roller for cyan in the primary transfer belt got knocked out of place. But like Black Cat said when we get a DV dump on any sharp we change the drum, corona kit if applicable, and developer. On that machine you can only get the drum as a unit. That's where I would start!

                Comment

                • 1stcavvet
                  Trusted Tech

                  100+ Posts
                  • Apr 2015
                  • 231

                  #9
                  Re: Sharp mxc402b

                  going back to check the




                  going back to check the ITB, is there a sim code to check the dv drive with the door open, cheated? thanks

                  Comment

                  • ZOOTECH
                    Senior member of CRS

                    Site Contributor
                    2,500+ Posts
                    • Jul 2007
                    • 3375

                    #10
                    Re: Sharp mxc402b

                    Originally posted by 1stcavvet
                    going back to check the




                    going back to check the ITB, is there a sim code to check the dv drive with the door open, cheated? thanks
                    Yes, to check DV drive, run sim 25-1 with the toners removed - the values should vary slightly.
                    To check the primary transfer, run sim 6 (not sure of sub) - should sequence through 'free', 'black', and 'color'. Cheat the front door, you should see the cam rotate.
                    I agree with the above post that the cyan belt charge roller is loose or the grounding spring is not positioned correctly.
                    "You can't trust your eyes, if your mind is out of focus" --

                    Comment

                    • blackcat4866
                      Master Of The Obvious

                      Site Contributor
                      10,000+ Posts
                      • Jul 2007
                      • 22995

                      #11
                      Re: Sharp mxc402b

                      Originally posted by ZOOTECH
                      Yes, to check DV drive, run sim 25-1 with the toners removed - the values should vary slightly.
                      To check the primary transfer, run sim 6 (not sure of sub) - should sequence through 'free', 'black', and 'color'. Cheat the front door, you should see the cam rotate.
                      I agree with the above post that the cyan belt charge roller is loose or the grounding spring is not positioned correctly.
                      I seem to recall a new transfer belt that had one of the charge rollers fall out before it even came out of the box. I don't remember the symptom though. =^..^=
                      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

                      • auburntechnology
                        Technician
                        • Feb 2013
                        • 20

                        #12
                        Re: Sharp mxc402b

                        hello
                        we have an mxc402sc doing the same thing
                        depleted all deveolper thanksgiving in cyan development unit only
                        no codes
                        now they call back stating light cyan again
                        unit is not depleted
                        swapped drums, still no cyan image
                        did you get this resolved?
                        paul

                        Comment

                        • Akitu
                          Legendary Frost Spec Tech

                          Site Contributor
                          2,500+ Posts
                          • Oct 2010
                          • 2595

                          #13
                          Re: Sharp mxc402b

                          Originally posted by blackcat4866
                          I seem to recall a new transfer belt that had one of the charge rollers fall out before it even came out of the box. I don't remember the symptom though. =^..^=
                          Typically it will not calibrate and lead to errors "Sub Cyan xx front/rear".
                          Cthulhu for president! Why settle for the lesser evil?

                          Comment

                          • 1stcavvet
                            Trusted Tech

                            100+ Posts
                            • Apr 2015
                            • 231

                            #14
                            Re: Sharp mxc402b

                            No, not yet I'm going back to check the ITB I don't see that there is any other thing wrong , I'm hoping that is the problem.

                            Comment

                            • auburntechnology
                              Technician
                              • Feb 2013
                              • 20

                              #15
                              Re: Sharp mxc402b

                              Originally posted by 1stcavvet
                              No, not yet I'm going back to check the ITB I don't see that there is any other thing wrong , I'm hoping that is the problem.
                              no errors for developer failure or itb

                              Comment

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