Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

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  • jonbonse
    Senior Tech

    Site Contributor
    500+ Posts
    • Jun 2009
    • 737
    #1

    Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

    Hi all
    I have a client with a UTAX CDC 1725 which I am told is the same as a Kyocera 250ci.
    I have installed the Maintenance kit MK-865A all apart from the black developer unit because as soon as I installed this, the machine give error C7401.
    After investigating error C7401, this error indicated a developer unit which the machine does not recognise and that I need to update the firmware for it to recognise it.
    Does anyone have this firmware for the UTAX CDC 1725?
    Many thanks
    Tags: error, firmware, km8030, kmc3232, kyocera, mode, service, unit, utax
    • Tonerkiller
      Senior Tech

      500+ Posts
      • Oct 2012
      • 668
      #2
      Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

      Check your connectors. Put the old dv unit back in, does the machine work now.

        Comment

        • jonbonse
          Senior Tech

          Site Contributor
          500+ Posts
          • Jun 2009
          • 737
          #3
          Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

          Originally posted by Tonerkiller
          Check your connectors. Put the old dv unit back in, does the machine work now.
          Hi Tonerkiller

          Yes I put the old one back in but they need the new one ideally....

            Comment

            • Jules Winfield
              Senior Tech

              500+ Posts
              • Jul 2009
              • 821
              #4
              Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

              There is actually a little board on the dv unit that you can swap from the original unit to make the new one work without the code. Just follow the the little connector on the front of the dv unit to find the board. You'll have to remove a little black plastic cover in order to see it.
              But I'm trying, Ringo. I'm trying real hard... to be the Shepherd.

                Comment

                • zoraldinho
                  teacher-guide-expert-guru

                  Site Contributor
                  5,000+ Posts
                  • Mar 2008
                  • 5013
                  #5
                  Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

                  You can solve this problem with v11.00 or above.
                  If it ain't broke, don't fix it
                  A picture is worth a thousand words

                    Comment

                    • jonbonse
                      Senior Tech

                      Site Contributor
                      500+ Posts
                      • Jun 2009
                      • 737
                      #6
                      Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

                      Hi

                      I had returned and swapped the board from the old dev unit but the same error presented itself . . . .

                      Do I need to go into service mode to run a dev setup??

                      If firmware is required, I'm concerned that the Kyocera firmware would not be compatible as it is a Utax branded machine. . . .

                        Comment

                        • zeeeba
                          Technician

                          50+ Posts
                          • Dec 2012
                          • 58
                          #7
                          Re: Kyocera 250ci (UTAX CDC 1725) Firmware, error C7401

                          Originally posted by jonbonse
                          Hi

                          I had returned and swapped the board from the old dev unit but the same error presented itself . . . .

                          Do I need to go into service mode to run a dev setup??

                          If firmware is required, I'm concerned that the Kyocera firmware would not be compatible as it is a Utax branded machine. . . .
                          I'have this problem one week ago and I've solved it by replacing the little board from old dev unit and replacing white gear at the rear of dev unit from old unit, because the dev unit's dispenser motor can't spin the dev unit gauge. If You see at Your old and new dev unit and compare the gears you see the difference. Sory for my english skills, I think You understand me.

                          And from my expierience: the Utax and Kyocera products are very similar but some parts is not compatible. Utax and Triumph adler parts is the same.

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