MP C6000 / Pro 550 Light Black

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  • iscott
    Trusted Tech

    250+ Posts
    • Mar 2010
    • 344
    #1

    MP C6000 / Pro 550 Light Black

    Got a customer with a Pro 550EX Black is too light tone it up and its fine for a while then back to too light. Odd thing is that you can run a job as processed black and it runs fine (a little pricey but fine) just about everything in the black unit has been replaced...anybody? Cause I got nothing...

    Also does anyone know what made Ricoh think these things would work in a print shop environment?
    Tags: None
    • JustManuals
      Field Supervisor

      5,000+ Posts
      • Jan 2006
      • 9838
      #2
      Re: MP C6000 / Pro 550 Light Black

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


      http://www.justmanuals.com



      Paul@justmanuals.com

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        • slimslob
          Retired

          Site Contributor
          25,000+ Posts
          • May 2013
          • 37059
          #3
          Re: MP C6000 / Pro 550 Light Black

          If all the bias voltages are correct, most likely the toner density sensor for the black did not get properly set. You can try the following:
          1. Turn off power
          2. Open the front cover
          3. Turn power on leaving cover open
          4. Enter system SP
          5. Close cover and run forced toner for black
          6. Exit SP and cycle with cover closed

          This should reset process control for the current toner level in the black.

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