bizhub 808, C-3B09 IH Communication Error

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  • blackcat4866
    Master Of The Obvious

    Site Contributor
    10,000+ Posts
    • Jul 2007
    • 22705
    #1

    bizhub 808, C-3B09 IH Communication Error

    I was quite excited to get this call. I've never had this code on any KM before.

    Following the troubleshooting in the manual I got my first smoking gun at the IH board, or more specifically smoking fuse F1:

    C-3B09-1.jpg

    So I headed back to the shop for an IH coil, and IH board. I would have liked to bring a fuse, but it's a weird size (29mm long, 6mm diameter), and I couldn't match it. My basic premise was that the only load ... the IH coil fried the fuse and maybe the IH board. Upon examination I found a split capacitor C47. I think that's more likely the cause of the blown fuse:

    C-3B09-2.jpg

    To my disappointment the code came back immediately after a System Error Clear, even with both the IH coil and the IH board. Back to my pin-outs, the next board in line is the Noise Filter NF1. Another smoking gun/fuse:

    C-3B09-3.jpg

    Fortunately this one was just a blown fuse. I had a couple of board mount fuse holders and a 250V 15A fuse for the fix:

    C-3B09-4.jpg

    So I'm thinking the IH coil probably was not necessary ... but in the manual I found that the IH coil is rated to last the typical life of the fuser, so it was about time. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=
    Tags: back, board, coil, fuse, smoking
    • allan
      RTFM!!

      5,000+ Posts
      • Apr 2010
      • 5445
      #2
      Re: bizhub 808, C-3B09 IH Communication Error

      Great stuff i like call like these.

      So your fix there was just to replace the fuser and the capacitor?

      Strange for one of those to pop they can handle quite the over voltage.

      The blows thru cap would be a primary cause i would guess.


      Then the majority of techs would order a new one...

      When thru a box of old replaced boards a guy collected you would be supersized how many of them are only ICP's.
      Whatever

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22705
          #3
          Re: bizhub 808, C-3B09 IH Communication Error

          Originally posted by allan
          Great stuff i like call like these.

          So your fix there was just to replace the fuser and the capacitor?

          Strange for one of those to pop they can handle quite the over voltage.

          The blows thru cap would be a primary cause i would guess.


          Then the majority of techs would order a new one...

          When thru a box of old replaced boards a guy collected you would be supersized how many of them are only ICP's.
          No, I couldn't find a capacitor, but I did have a parts donor machine to provide me with the IH Coil and IHPU (IH board). The fuse and holders came from my miscellany. My soldering skills still seem to be up to par. =^..^=
          If you'd like a serious answer to your request:
          1) demonstrate that you've read the manual
          2) demonstrate that you made some attempt to fix it.
          3) if you're going to ask about jams include the jam code.
          4) if you're going to ask about an error code include the error code.
          5) You are the person onsite. Only you can make observations.

          blackcat: Master Of The Obvious =^..^=

            Comment

            • srvctec
              Former KM Senior Tech

              500+ Posts
              • Oct 2009
              • 827
              #4
              Re: bizhub 808, C-3B09 IH Communication Error

              Just curious what the total count is on this machine. We have three 958's in a community college that are all over a million clicks now.
              Started in the copier service business in the fall of 1988 and worked at the same company for 33.5 years, becoming the senior tech in 2004 but left to pursue another career on 4/29/22.

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22705
                  #5
                  Re: bizhub 808, C-3B09 IH Communication Error

                  1.6 millions. =^..^=
                  If you'd like a serious answer to your request:
                  1) demonstrate that you've read the manual
                  2) demonstrate that you made some attempt to fix it.
                  3) if you're going to ask about jams include the jam code.
                  4) if you're going to ask about an error code include the error code.
                  5) You are the person onsite. Only you can make observations.

                  blackcat: Master Of The Obvious =^..^=

                    Comment

                    • Synaux
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • Mar 2012
                      • 1224
                      #6
                      Re: bizhub 808, C-3B09 IH Communication Error

                      Originally posted by blackcat4866

                      So I headed back to the shop for an IH coil, and IH board. I would have liked to bring a fuse, but it's a weird size (29mm long, 6mm diameter), and I couldn't match it. My basic premise was that the only load ... the IH coil fried the fuse and maybe the IH board. Upon examination I found a split capacitor C47. I think that's more likely the cause of the blown fuse:

                      [ATTACH=CONFIG]46906[/ATTACH]
                      It is like reading a picture book!

                      Good stuff.

                      I think the capacitor is more likely not the cause of the blown fuse. Rather, it is probably a result of the fuse not blowing early enough and destroying the cap. Also, if you get into a jam like that with the fuse size, you can always solder/wrap a lead to the fuse to bridge the connection on the board (I have done this with fuses and caps in the past and rarely used the same method to bypass the fuse altogether--for testing--cross all your Ts and dot your I-s if you bypass though).

                        Comment

                        • wjurls
                          Trusted Tech

                          Site Contributor
                          250+ Posts
                          • Feb 2017
                          • 461
                          #7
                          Re: bizhub 808, C-3B09 IH Communication Error

                          We've seen this code a few times and it's never been the coil. It's usually either the IH power supply board on the front, or the noise filter board on the back.

                            Comment

                            • erwinf
                              Junior Member
                              • Feb 2016
                              • 6
                              #8
                              Re: bizhub 808, C-3B09 IH Communication Error

                              Hi Gents
                              Just to follow on regarding this error code,
                              I have 2 x B758 both new machines which were installed on the same floor at a customer,
                              both machines began giving the error code C-3B09, i also suspected that it could be the IHPU boards or Noise Filter.
                              we followed the all the recommended steps to resolve the fault, however the error code kept on coming back, eventually we installed 3KVA- Voltage Regulators in an attempt to stabilize the power. this seems to have worked.
                              when i tested the IHPU boards back at my workshop, i found the the fuses were still intact and had not blown but when i install the boards back in the machines the error code returns immediately and cannot be reset.

                                Comment

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