C250 P21 Error and double imaging

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  • pieter laubscher
    • Jul 2024

    [Misc] C250 P21 Error and double imaging

    Hi Everyone, I have the following problem: P21 and double imaging on a C250. I have tried the following:1.) Changedand tested all image units
    2.) Changedand tested transfer belt (As per service manual)
    3.) CleanedIDC sensors
    4.) SE1and SE2 sensors cleaned
    5.) CleanedImage unit pins
    6.) Strippedand cleaned HV1 board (As per Service manual)
    7.) Upgradedfirmware to G0055
    9.) Cleanedtransfer roller

    Black and white prints are fine, problem only on colour.

    Any Help please if anyone has had this problem before?
  • rangertech
    Technician
    • Jun 2011
    • 40

    #2
    Re: C250 P21 Error and double imaging

    try to clean the ph unit color section and second transfer roller.

    Comment

    • AGI
      Technician
      • Jul 2011
      • 17

      #3
      Re: C250 P21 Error and double imaging

      There is more than likely a bind up in the transfer belt. Try mono color, if that looks ok then take the transfer belt unit out and apart. It's usually a excessive build up of toner.
      Authorized Kyocera and Konica Minolta Dealer in NJ
      Sales Site
      Customer Site

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      • ck1
        Trusted Tech
        250+ Posts
        • Apr 2008
        • 485

        #4
        Re: C250 P21 Error and double imaging

        For " double imaging " i have this problem before , change the fusing ok. P21 normaly is IBT belt sensor .

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        • pieter laubscher

          #5
          Re: C250 P21 Error and double imaging

          Thanks guys

          it was the transferbelt drive was a little sticky

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