Bizhub C451, C225B error code

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  • kaleidoscope
    • May 2025

    #1

    Bizhub C451, C225B error code

    Hi all.

    Need help please. C451 with C225B error. The error indicates that the black drum motor has failed. We replaced the main drive unit but the error is still popping up.

    Any idea why this error isn't going away?

    Regards
  • leo
    Technician

    50+ Posts
    • Jun 2008
    • 64

    #2
    probably is black IU defect

    Comment

    • humpty dumpty
      Technician
      • Feb 2009
      • 29

      #3
      replace black I.U also check black toner is full and cycling!!!!

      Comment

      • huntergazz
        Technician
        • Feb 2011
        • 23

        #4
        Hi,

        The error code C225B is referring to the motor that drives the k pc drum. its either not turning / turning abnormally. I would change the motor, if not then you problem is with the printer control board

        Comment

        • david.post

          #5
          Re: Bizhub C451, C225B error code

          I have received the same error code for my first call tomorrow, will update asap if anyone ever searches this code again and finds this thread.

          Comment

          • Speedy
            Technician
            • Apr 2008
            • 30

            #6
            Re: Bizhub C451, C225B error code

            I had a C650 giving the same code every morning, and it turned out to be the main power supply.

            Comment

            • rindraintsoa
              Technician

              50+ Posts
              • Sep 2010
              • 55

              #7
              Re: Bizhub C451, C225B error code

              There is another thread about this eror code, they says that th problem could be the DCPU (power supply) I will check it and inform you about the issue

              Comment

              • rindraintsoa
                Technician

                50+ Posts
                • Sep 2010
                • 55

                #8
                Re: Bizhub C451, C225B error code

                Hi all, I have changed the DCPU and the problem has gone.

                Comment

                • bizhubgrub

                  #9
                  Re: Bizhub C451, C225B error code

                  I have found that most of the time when this error is displayed,the spring loaded flap on the top front side of the K imaging unit is not there,or not pushing the K toner channel open that is above it.
                  Although this backup can sometimes ruin the K unit drive on the inside back wall of the machine.

                  Comment

                  • Lasersupplies
                    Trusted Tech
                    • Jul 2011
                    • 221

                    #10
                    Re: Bizhub C451, C225B error code

                    Hi All

                    I've found also that changing the DCPU (power supply) cured the problem. As well as throwing up the C-225B error before hand the copier also didn't recognize the finisher when the error appeared. Changing the DCPU cured both.

                    Comment

                    • lwals2015
                      Junior Member
                      • Sep 2015
                      • 4

                      #11
                      Re: Bizhub C451, C225B error code

                      Originally posted by kaleidoscope
                      Hi all.

                      Need help please. C451 with C225B error. The error indicates that the black drum motor has failed. We replaced the main drive unit but the error is still popping up.

                      Any idea why this error isn't going away?

                      Regards
                      yes its power board

                      Comment

                      • muhammadreza
                        Lerner

                        Site Contributor
                        • Aug 2012
                        • 39

                        #12
                        Re: Bizhub C451, C225B error code

                        Every time i face this code i change power supply. after changing power supply machine working smoothly .

                        Comment

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