IM C4500 BICU Board issue

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  • iscott
    Trusted Tech

    250+ Posts
    • Mar 2010
    • 344
    #1

    IM C4500 BICU Board issue

    IM C4500 Won't do anything other than come ready. Won't Print (Not even a meter sheet) Copy or Scan. You can pull it up via the web browser. This is the 3rd one 2 IM C4500 and 1 IM C3500 that we have had do this. The other 2 were repaired by replacing the BICU Board D0BQ5114 On one we had to replace the ee prom also Ricoh 1407-8389.
    Is this a none issue or is there another way to fix this issue these boards are getting expensive.
    Tags: None
    • Gift
      Service Manager

      1,000+ Posts
      • Mar 2011
      • 2444
      #2
      So it won't throw out any SC even after waiting some time?

      Haven't seen this issue yet - back in the days we had some issues with BICUs blown thanks to faulty polygon motors. We were able to revive them by fixing a faulty zero ohm smd resistor that was acting as a fuse an was located close to the power supply connector + replacing the polygon motor.
        👍 2

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        • luca72
          Field Supervisor

          1,000+ Posts
          • Oct 2017
          • 1677
          #3
          Originally posted by Gift
          So it won't throw out any SC even after waiting some time?

          Haven't seen this issue yet - back in the days we had some issues with BICUs blown thanks to faulty polygon motors. We were able to revive them by fixing a faulty zero ohm smd resistor that was acting as a fuse an was located close to the power supply connector + replacing the polygon motor.
          gold information this.
          "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)
            👍 1

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            • iscott
              Trusted Tech

              250+ Posts
              • Mar 2010
              • 344
              #4
              No SC Code Just the "Functional problem detected Press Restart..." Screen

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                • luca72
                  Field Supervisor

                  1,000+ Posts
                  • Oct 2017
                  • 1677
                  #5
                  Originally posted by iscott
                  No SC Code Just the "Functional problem detected Press Restart..." Screen
                  try to see the cpu led array status on the controller board
                  consulting the alternation of the led array, with the mirror on the SM, you could understand where the problem is.

                  p.s. all LEDs on fixed = faulty CPU
                  "loneliness is an invention of the white man, when we are alone we talk to everything around us, we are never alone" (Ojibwa)

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                    • slimslob
                      Retired

                      Site Contributor
                      25,000+ Posts
                      • May 2013
                      • 36748
                      #6
                      Originally posted by iscott
                      No SC Code Just the "Functional problem detected Press Restart..." Screen
                      I don't have a manual on the IM series so can't check but for the MP models that was caused by the setting of SC5875 SC Auto Reboot. SC5875-001:
                      0: The machine reboots automatically after the machine issues
                      an SC error and logs the SC error code. If the same SC occurs
                      again, the machine does not reboot.
                      1: The machine does not reboot when an SC error occurs but instead displays the SC code.
                      If it is set to 0, change it to 1 and reboot. It should then display the SC when you go into any function. Since it only occurs for Type D service codes you most likely have a fusing unit problem or with a board involved in controlling the fusing unit.
                        👍 2

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