Light copies Ricoh mp402

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  • tcypy1961
    Senior Tech

    500+ Posts
    • Feb 2009
    • 773

    #1

    [CQ] Light copies Ricoh mp402

  • slimslob
    Retired

    Site Contributor
    25,000+ Posts
    • May 2013
    • 36949

    #2
    Re: Light copies Ricoh mp402

    When is the last time that the optics were cleaned. Dirty mirrors will cause a gray scale shift to the light side when the white reference is read.

    Comment

    • tcypy1961
      Senior Tech

      500+ Posts
      • Feb 2009
      • 773

      #3
      Re: Light copies Ricoh mp402

      Making the copies look under toned??? I believe I cleaned them about the time I brought copier in due to an error code. The environment is not dusty. Curious why machine is not calling for toner.
      thanks!!!

      Comment

      • slimslob
        Retired

        Site Contributor
        25,000+ Posts
        • May 2013
        • 36949

        #4
        Re: Light copies Ricoh mp402

        Try an internal print like a counter sheet or a test pattern. If they are not light, the toner is fine.

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        • Codex
          Senior Tech

          500+ Posts
          • May 2008
          • 694

          #5
          Re: Light copies Ricoh mp402

          Hello

          As i remember there is a RTB for faulty Pcu Units...they make light banding on a side. Maybe its the same problem

          Inviato dal mio SM-S901B utilizzando Tapatalk
          Memento Audere Semper

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          • emiliorsg
            Trusted Tech

            100+ Posts
            • Jul 2018
            • 141

            #6
            Re: Light copies Ricoh mp402

            Have you cleaned the leds?

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            • DRichard
              Trusted Tech

              250+ Posts
              • May 2008
              • 482

              #7
              Re: Light copies Ricoh mp402

              LED bank above the cartridge is probably dusted with toner...
              "Enjoy every sandwich."

              -- Warren Zevon

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              • tufbnme
                Trusted Tech

                250+ Posts
                • Feb 2008
                • 493

                #8
                Re: Light copies Ricoh mp402

                Replace the Drum Unit, Seen it lots of times

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                • dalewb74
                  Service Manager

                  Site Contributor
                  1,000+ Posts
                  • Feb 2018
                  • 1125

                  #9
                  Re: Light copies Ricoh mp402

                  im just hoping that is a ricoh toner? not one made by someone else...

                  Comment

                  • luca72
                    Field Supervisor

                    1,000+ Posts
                    • Oct 2017
                    • 1697

                    #10
                    Re: Light copies Ricoh mp402

                    Originally posted by tcypy1961
                    I replace toner cartridge about a month ago (copier was requiring toner). Now copies are light(don’t have record of installation for number of copies made). Look through sp mode to force feed toner can’t find anything. Looking for solution. Google didn’t help. Thanks!!!
                    for first thing, try to clean the led array inside the machine (above the pcdu), and check the real open movement of the pcdu toner cover mechanism betweed the pcdu and the toner cartridge, if you have problem of plastic deformation, when you put the cartridge the cover dont open correctly, and the toner dont fall inside the pcdu, if you want, you can remove the whole toner cover part, work anyway
                    "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

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