MPC 4502 Cant clear toner end

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  • semi
    Trusted Tech

    100+ Posts
    • Sep 2008
    • 194

    #1

    MPC 4502 Cant clear toner end

    Hiall,I've got a MPC4502 I cant clear the toner end,so far fitted new pump & dev unit,turn toner detect off /on serval times,2 different bottles of toner,NVRAM clear(dont worry backed up before),followed the tech bullitin about this,tried toner end recovery,still no joy,any ideas? Going back with a complete pcu,rfid board & another pump tomorrow-cheers
  • JustManuals
    Field Supervisor

    5,000+ Posts
    • Jan 2006
    • 9838

    #2
    Re: MPC 4502 Cant clear toner end

    This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:


    Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com

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    • johnyb
      Trusted Tech

      100+ Posts
      • Feb 2011
      • 167

      #3
      Whats vt compared to vtref on that colour?
      Also what is the vsp reading ?

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      • slimslob
        Retired

        Site Contributor
        25,000+ Posts
        • May 2013
        • 37502

        #4
        Re: MPC 4502 Cant clear toner end

        The toner nozzle might br clogged. Try cleaning or replacing it.

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        • Iowatech
          Not a service manager

          2,500+ Posts
          • Dec 2009
          • 3930

          #5
          Re: MPC 4502 Cant clear toner end

          This might be stupid, but are you sure you are using the right toner? I've seen wrong toner cause the exact same problem enough times I had to ask.

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          • semi
            Trusted Tech

            100+ Posts
            • Sep 2008
            • 194

            #6
            Re: MPC 4502 Cant clear toner end-FIXED

            Fixed!!!! Printed out full smc,decided to clear nvram again without reinstalling it,now working but had to reinput all the smc values,but hey ho-result.
            Cheers for all the replies

            Comment

            • jam-o-matic
              Technician

              50+ Posts
              • Oct 2012
              • 72

              #7
              Re: MPC 4502 Cant clear toner end

              Turning SP 3-045 to off (=0) and running copies (or rebooting), then switch back to on (=1) will also reset the 'toner empty' message. Won't have to re-input values like NVRAM! Glad you got it!

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