Konica c360 with c3923 code

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  • Mr Spock
    Vulcan Inventor of Death

    1,000+ Posts
    • Aug 2006
    • 2064
    #1

    Konica c360 with c3923 code

    A fellow tech has an issue with a Konica c360. It keeps throwing this code (c3923). reset code and 7 minutes later it codes out.

    As far as he remembers the fuser, power supply, and PRCB have been replaced. harness test good.
    Nothing in ssd solutions.

    Any body have an answer?
    And Star Trek was just a tv show...yeah right!
    Tags: None
    • tbkarthic
      Technician
      • Feb 2011
      • 66
      #2
      Re: Konica c360 with c3923 code

      what's status of fusing unit life?
      drugstore-catalog.com

        Comment

        • blackcat4866
          Master Of The Obvious

          Site Contributor
          10,000+ Posts
          • Jul 2007
          • 22997
          #3
          Re: Konica c360 with c3923 code

          It reads as a pressure roller thermistor error. Is the thermistor in contact with the pressure roller? Is it making a connection to the main body (connector problem)? Is it making connection at the PRCB? Just 'cause it's new doesn't make the thermistor touch the roller. It's time to get out the VOM and start taking resistance readings back to the PRCB. =^..^=
          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

            • cnswart
              Junior Member
              • Oct 2011
              • 3
              #4
              Re: Konica c360 with c3923 code

              Heater lamp inside pressure roller faulty

                Comment

                • allan
                  RTFM!!

                  5,000+ Posts
                  • Apr 2010
                  • 5462
                  #5
                  Re: Konica c360 with c3923 code

                  Manual also mention to check if the right side door is latching properly.

                  So for that 7 minutes printing is normal?

                  All the fuser temp settings on default?
                  Whatever

                    Comment

                    • cnswart
                      Junior Member
                      • Oct 2011
                      • 3
                      #6
                      Re: Konica c360 with c3923 code

                      Originally posted by allan
                      Manual also mention to check if the right side door is latching properly.

                      So for that 7 minutes printing is normal?

                      All the fuser temp settings on default?

                      My machine switched on and after 7 minutes it gives the code - after fault finding I found that the heater lamp was faulty - just do visual inspection or test resistance on lamp - that will quickly give you an indication

                        Comment

                        • femaster
                          Service Manager

                          1,000+ Posts
                          • May 2011
                          • 1477
                          #7
                          Re: Konica c360 with c3923 code

                          Originally posted by cnswart
                          Heater lamp inside pressure roller faulty
                          I'm hoping they have already figured this out since the question was asked over 8-years ago.
                          A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
                          My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

                            Comment

                            • joaopauloooo
                              Technician
                              • Jul 2016
                              • 44
                              #8
                              My C220 was throwing the C-3923 and was resolved after changing this little f**** from the fuser.
                              25-05-22 17-11-56 1857.jpg

                                Comment

                                • blackcat4866
                                  Master Of The Obvious

                                  Site Contributor
                                  10,000+ Posts
                                  • Jul 2007
                                  • 22997
                                  #9
                                  Originally posted by joaopauloooo
                                  My C220 was throwing the C-3923 and was resolved after changing this little f**** from the fuser.
                                  25-05-22 17-11-56 1857.jpg
                                  That's a thermostat. It's thermal protection, with a metal disk inside that warps to break the connection when the fuser excess a certain temperature. If you remove it from the fuser and bang it against the table, sometimes it will reset.
                                  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 =^..^=
                                    ๐Ÿ‘ 1

                                    Comment

                                    • Synthohol
                                      Certified Konica Expert

                                      Site Contributor
                                      5,000+ Posts
                                      • Mar 2016
                                      • 5793
                                      #10
                                      i had a video of me resetting one 3 or 4 times against the table.
                                      they are re-settable.
                                      in the olden days we would put them in the freezer to reset. or hit 'em with an upside down aircan to freeze.
                                      We know a thing or two because we've seen a thing or two.
                                      The medication helps though...

                                        Comment

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