mp 4002 light copies

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  • miltiadisf
    Junior Member
    • Jun 2016
    • 3
    #1

    mp 4002 light copies

    i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
    i have clean id sensor and make force toner but the same. pls help me.
    Tags: black, copies, developer, make, toner
    • Zeldaman
      Senior Tech

      500+ Posts
      • Mar 2011
      • 946
      #2
      Re: mp 4002 light copies

      Hi there!
      Have you cleaned the magroller? My 1. guess is the tonerhopper. The 4 shuffle-mylars often get loose so the toner is partially blocked.
      Hope this helps.
      Greetings...

        Comment

        • FrohnB
          Service Manager

          Site Contributor
          1,000+ Posts
          • Jul 2017
          • 1919
          #3
          Re: mp 4002 light copies

          Did you forget to take out the clear toner plug (the one you insert into toner chute when you flip the Drum Assembly over)? I did this on one of my first PM's for this series.
          Omertà

            Comment

            • luca72
              Field Supervisor

              1,000+ Posts
              • Oct 2017
              • 1556
              #4
              Re: mp 4002 light copies

              Originally posted by miltiadisf
              i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
              i have clean id sensor and make force toner but the same. pls help me.

              besides everything you've done, clean all the lenses / mirrors inside the laser box unit: it's easy
              "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

                Comment

                • CopyBats
                  Trusted Tech

                  100+ Posts
                  • Aug 2011
                  • 131
                  #5
                  Re: mp 4002 light copies

                  Originally posted by miltiadisf
                  i have change opc drum , clean blade , charge roller, developer. set bias too default first and make developer inti without the toner drop on devepoler unit. at first everything its ok. after 3000 copies i have light copies , the black is not so black . any help?
                  i have clean id sensor and make force toner but the same. pls help me.
                  How is the quality of the paper? Is it leaving a lot of dust? ( Cheaper paper tends to do that). Is your operating environment normal? ( Humidity, temperature etc)
                  If it works, don't touch it.

                    Comment

                    • MIGUELMARCHENA
                      Trusted Tech

                      Site Contributor
                      100+ Posts
                      • Feb 2018
                      • 174
                      #6
                      Re: mp 4002 light copies

                      What toner are you using?

                      a client used a few generics with which he gave this problem

                      3500D is the jar that bothers

                      when you put another mark it was solved

                      As you have already explained, check the hopper, as the toner is caked in the toner output to the image unit and the copy is rinsed

                        Comment

                        • Phil B.
                          Field Supervisor

                          10,000+ Posts
                          • Jul 2016
                          • 22808
                          #7
                          Re: mp 4002 light copies

                          Originally posted by MIGUELMARCHENA

                          3500D is the jar that bothers

                          when you put another mark it was solved

                          WTF HUH?

                            Comment

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