BH C451 fuser reset fuse not resetting or blowing the fuse

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  • Desert Rat
    Service Manager

    Site Contributor
    1,000+ Posts
    • May 2008
    • 1089
    #1

    BH C451 fuser reset fuse not resetting or blowing the fuse

    I am having trouble getting this to reset. This BH C451 is branded an Oce CM4521. If that matters.
    I've only had a couple of calls on this unit so I don't know if the drums have been chipped.
    The black copy is not perfect but I got it through the auto gradation adjustment.
    It also show an oil can and an "!" real small on the screen. The ! gave me three warning messages
    2 about toner being low and the other about the fuser needing to be reset or replaced.
    I replaced the fuse, or I stuck it inside with the other one. I can see the leads of the fuse I installed
    extend past the solder joint or crimp of the old fuse. The new fuse I am using is for the BH C353. I'm
    not sure if that matters.
    Has anyone else run into this?


    Thanks

    DR
    Tags: None
    • copier tech
      Field Supervisor

      5,000+ Posts
      • Jan 2014
      • 8105
      #2
      Re: BH C451 fuser reset fuse not resetting or blowing the fuse

      Are you sure you are using the correct fuse AMP?

      Are you soldering the fuse to the original one or cutting the old one out?
      Let us eat, drink, and be merry, because tomorrow we may die!

      For all your firmware & service manual needs please visit us at:

      www.copierfirmware.co.uk - www.printerfirmware.co.uk
      ​

        Comment

        • Desert Rat
          Service Manager

          Site Contributor
          1,000+ Posts
          • May 2008
          • 1089
          #3
          Re: BH C451 fuser reset fuse not resetting or blowing the fuse

          Copier tech,
          I have not cut the old one out. I shoved the leads of the new fuse into each end of the old fuse.
          The fuse I'm using is for the BH C353. I've done this on a C353 and it worked fine.
          Are those fuses the same? The life counter for the fuser is maxed out.
          Someone mentioned it could be that the other messages (oil can & "!") that is preventing the reset.
          Also the black copy is not perfect, but I was able to get it to complete the auto gradation adjustment.

          Thanks for the reply

          DR

            Comment

            • emujo
              Field Supervisor

              2,500+ Posts
              • Jun 2009
              • 3009
              #4
              Re: BH C451 fuser reset fuse not resetting or blowing the fuse

              I don't know if the c353 fuse will work on the 451, but if someone verifies that it will work, but the fuser still won't show "new" then you probably have a bad Printer Control Board. Check for 24vdc going to the fuse, if not present, then you will never blow the fuse. Your other option is to install the PPLM firmware and associated softswitches. This will not reset the fuser, but it will allow the MFP to run with unlimited copies on the consumables. I believe the x-fer belts and IUs won't reset with unresolved P codes, but the fuser will. Emujo
              If you don't see your question answered in the forum, please don't think it's OK to PM me for a personal reply...I do not give out firmware and/or manuals.

                Comment

                • acusso1234
                  Tecnico

                  250+ Posts
                  • Dec 2008
                  • 250
                  #5
                  Re: BH C451 fuser reset fuse not resetting or blowing the fuse

                  Hi. I'm pretty sure that fuse is the same. P codes are the matter.
                  ... In the minute that you're thinking of giving up, think about why you lasted so long ...

                    Comment

                    • Desert Rat
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • May 2008
                      • 1089
                      #6
                      Re: BH C451 fuser reset fuse not resetting or blowing the fuse

                      Thank you for the info, I will take carre of the "P" code and see if that will reset the
                      Fuser counter.

                      Thanks again

                      DR

                        Comment

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