mp 3351 changing developer in pcu unit

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  • alvin_3000e
    Technician
    • Dec 2008
    • 29
    #1

    mp 3351 changing developer in pcu unit

    Hi I replaced new developer in mp 3351 copier pcu unit using ricoh developer 28. When testing the printout I found a lots of small dots on the background of the print copies.
    Deleoper 28 is for that model of pcu. Is there any setting I need to do to removed the small dark dots on the background of the printed copies.
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    • slimslob
      Retired

      Site Contributor
      25,000+ Posts
      • May 2013
      • 37487
      #2
      What is the PM count for the PCU? Those look to me like drum spots. They start to appear when the drum is 15K or more beyond recommended replacement count. Replace drum, cleaning blade. charge roller and charge cleaning roller. Anything else will only make the spots worse.

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        • Codex
          Senior Tech

          500+ Posts
          • May 2008
          • 703
          #3

          Ciao
          Hai cambiato solo sviluppatore o Pcu, blade ecc ecc. Hai eseguito l'inizializzazione?
          Memento Audere Semper

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