MX4140 ADF Misfeed (ICU_REQ)

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  • buzz
    Trusted Tech

    Site Contributor
    250+ Posts
    • Aug 2013
    • 288
    #1

    MX4140 ADF Misfeed (ICU_REQ)

    Leading edge of the original reaches the slit glass and then stops and registers a Misfeed in document feeder. I checked all sensors in service mode and all are switching just fine. I replaced the whole ADF Assembly with another 4140 and another RSPF with a 5140 and all 3 ADFs are doing the same thing!

    Maintenance Report shows SPF jams labeled as ICU_REQ. see following:

    170718 MX4140.jpg

    Manual says that ICU_REQ is a ICU factor stop jam.

    RSPF is connected to SCN, then to Mother, then to PCU. My thoughts are to replace the SCN first, then Mother, then PCU...etc.

    Anyone had this problem before? Any tips and suggestions?

    Thanks in advance!
    Tags: None
    • moose55
      Trusted Tech

      Site Contributor
      100+ Posts
      • Mar 2017
      • 143
      #2
      Re: MX4140 ADF Misfeed (ICU_REQ)

      Tech Tip TT-010814_1 is for Hercules series, but may be the answer to your issue. It states "When using the DSPF a ICU_REQ jam may be logged when copying large amounts of originals or scanningat high resolutions if MFP PWB RAM is failing. Replace the DDR3 DIMM memory (1GB) on the MFP PWB inslot DIMM1." Hope that helps?
      The Moose is loose!!

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        • buzz
          Trusted Tech

          Site Contributor
          250+ Posts
          • Aug 2013
          • 288
          #3
          Re: MX4140 ADF Misfeed (ICU_REQ)

          Originally posted by moose55
          Tech Tip TT-010814_1 is for Hercules series, but may be the answer to your issue. It states "When using the DSPF a ICU_REQ jam may be logged when copying large amounts of originals or scanningat high resolutions if MFP PWB RAM is failing. Replace the DDR3 DIMM memory (1GB) on the MFP PWB inslot DIMM1." Hope that helps?

          Thanks moose!

          I'll try this and let you know. I searched the bulletins under ICU_REQ and that tip never showed up, I'm still getting used to searching on that website.

            Comment

            • boutn
              Senior Tech

              500+ Posts
              • Jun 2016
              • 540
              #4
              Re: MX4140 ADF Misfeed (ICU_REQ)

              Originally posted by moose55
              Tech Tip TT-010814_1 is for Hercules series, but may be the answer to your issue. It states "When using the DSPF a ICU_REQ jam may be logged when copying large amounts of originals or scanningat high resolutions if MFP PWB RAM is failing. Replace the DDR3 DIMM memory (1GB) on the MFP PWB inslot DIMM1." Hope that helps?
              Technical Tip? Where can i find technical tips?

              on the EU site, there are only Technical Reports.
              If i search there for "ICU_REQ", i only find ROM UPDATES and SERVICE MANUALS.

                Comment

                • moose55
                  Trusted Tech

                  Site Contributor
                  100+ Posts
                  • Mar 2017
                  • 143
                  #5
                  Re: MX4140 ADF Misfeed (ICU_REQ)

                  Originally posted by boutn
                  Technical Tip? Where can i find technical tips?

                  on the EU site, there are only Technical Reports.
                  If i search there for "ICU_REQ", i only find ROM UPDATES and SERVICE MANUALS.

                  Object moved
                  The Moose is loose!!

                    Comment

                    • buzz
                      Trusted Tech

                      Site Contributor
                      250+ Posts
                      • Aug 2013
                      • 288
                      #6
                      Re: MX4140 ADF Misfeed (ICU_REQ)

                      Replaced DIMM, SCN CTL PWB, and Mother PWB... no dice.

                      I got to order the MFP PWB next. I've never replaced the MFP PWB. According to the manual I need to use the old flash, eeprom and dimms and transfer them to the new PWB, is that correct? Have any of you replaced just the MFP PWB on the 4140/5140s?

                      Thanks!

                        Comment

                        • harleyrider
                          Trusted Tech

                          250+ Posts
                          • Oct 2011
                          • 348
                          #7
                          Re: MX4140 ADF Misfeed (ICU_REQ)

                          Yes all eeproms sata etc. stay with the original machine.

                            Comment

                            • moose55
                              Trusted Tech

                              Site Contributor
                              100+ Posts
                              • Mar 2017
                              • 143
                              #8
                              Re: MX4140 ADF Misfeed (ICU_REQ)

                              Originally posted by buzz
                              Replaced DIMM, SCN CTL PWB, and Mother PWB... no dice.

                              I got to order the MFP PWB next. I've never replaced the MFP PWB. According to the manual I need to use the old flash, eeprom and dimms and transfer them to the new PWB, is that correct? Have any of you replaced just the MFP PWB on the 4140/5140s?

                              Thanks!
                              Yes, you do need to transfer the EEPROM and DIMM's to the new MFP PWB. Otherwise you get an error code.
                              The Moose is loose!!

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