TA3554 error 1950

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  • masky
    Technician
    • Aug 2010
    • 49
    #1

    TA3554 error 1950

    Colleagues, I have a 3554 that has error 1950 on the screen.
    It's known that this error is due to the contact between the TR8560 and the machine. I've checked the TR contacts and connectors, and everything seems fine. The machine is locked, and in service mode, SIM000 cannot be run for a full report because the home button is grayed out. I've tried running SIM906 to see if the home button appears correctly, but without success. My plan is to view the full report to better understand the source of the problem...
    Does anyone know what causes error 1950? ((( It's the second TR that I need to change on the same machine)))
    Does anyone know how to get a full 000 report for USB if the home button doesn't light up?​
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    • toddanderson
      Trusted Tech

      100+ Posts
      • Dec 2005
      • 235
      #2
      Originally posted by masky
      Colleagues, I have a 3554 that has error 1950 on the screen.
      It's known that this error is due to the contact between the TR8560 and the machine. I've checked the TR contacts and connectors, and everything seems fine. The machine is locked, and in service mode, SIM000 cannot be run for a full report because the home button is grayed out. I've tried running SIM906 to see if the home button appears correctly, but without success. My plan is to view the full report to better understand the source of the problem...
      Does anyone know what causes error 1950? ((( It's the second TR that I need to change on the same machine)))
      Does anyone know how to get a full 000 report for USB if the home button doesn't light up?
      Go into maintenance mode and see if serial numbers are showing for the units, drums, DV, transfer belt

        Comment

        • PrintWhisperer
          Trusted Tech

          250+ Posts
          • Feb 2018
          • 465
          #3
          If you can pick up an IP address, you can browse the event log by entering IPADDRESS/eventlog in your browser. Look for other EEPROM failure codes.

          Transfer Connect PWB fracture has been seen to cause this.

          C1950 is sometimes seen when it is NOT the actual failure. IMAGE_I2C_SDA is the serial communication loop for all the EEPROMs and it can fail anywhere in the loop.

          It seems the first check in the programming is the TX belt EEPROM so it flags the C1950 even if the failure is elsewhere.

          In this case, Image Drive PWB and Engine PWB are suspect, along with all MK parts and connections.

          "Being ignorant is not so much a shame, as being unwilling to learn" - Benjamin Franklin
            👍 1

            Comment

            • masky
              Technician
              • Aug 2010
              • 49
              #4
              It seems that c2840 came out before, (( Belt cleaning motor error)) , so I think the fault is in the entire unit.
              The strange thing is knowing the reason for the failure. It is the second unit in 4 months, everything is OEM and the equipment barely has 150K impressions.

                Comment

                • PrintWhisperer
                  Trusted Tech

                  250+ Posts
                  • Feb 2018
                  • 465
                  #5
                  Good find.

                  If you replace the TX belt and it's fixed the assumption is that it's the TX belt circuitry but the Image Drive PWB could be flaky giving you a 'chicken-egg" scenario.

                  Image Drive PWB is notoriously the board which takes a hit during surges, especially if parts are pulled with power-on. Not saying this was done but it is seen a lot.
                  "Being ignorant is not so much a shame, as being unwilling to learn" - Benjamin Franklin

                    Comment

                    • Lunatech
                      Trusted Tech

                      100+ Posts
                      • Oct 2012
                      • 199
                      #6
                      Originally posted by masky
                      It seems that c2840 came out before, (( Belt cleaning motor error)) , so I think the fault is in the entire unit.
                      The strange thing is knowing the reason for the failure. It is the second unit in 4 months, everything is OEM and the equipment barely has 150K impressions.
                      I believe every time I have seen this code it was caused by the waste toner recovery system not working properly. I have not seen it on any of the xx54 series machines but on the older xx53 and xx52 series. All have always had OEM toner and parts. The first time it happened I replaced the belt assembly and thought I had fixed it. As I recall it was about two weeks later when the same thing happened. I replaced it again and did a much more detailed inspection and found nothing that seemed out of place or abnormal. After a few more times of the same thing, a clicking or ratcheting noise developed. The waste toner auger that runs along the drum drive unit had seized and caused the noise. After replacing the auger, waste toner receptacle and the belt assembly we had no more problem. Whenever I see C2840 I always thoroughly inspect the waste toner system and usually find a fault of some sort with it.


                      For what it is worth, I hope this helps.
                        👍 1

                        Comment

                        • Ropariva
                          Senior Tech

                          500+ Posts
                          • Mar 2016
                          • 649
                          #7
                          C1950 is an annoying error. It’s always just the connection to the plug in the machine and almost never due to a bent pin. The machine side plug moves and if you try bend it up or down a fraction this can always clear the error. you may have to try this a few times.
                          The belt cleaning motor error is one that has two causes. The cleaning blade can flip on the steel roller which causes excess drag, or more commonly the waste toner hopper and WTB transport backs up causing the auger to block up. Have had this a number of times now on low and hi speed 54 series. πŸ˜•
                            👍 4

                            Comment

                            • BBM
                              Senior Tech

                              500+ Posts
                              • Dec 2020
                              • 875
                              #8
                              Agree with you Ropariva . Occasionally when reinserting the transfer belt a C1950 happens . If you slightly move the connector on the machine side UP and then slide the belt in code will clear . I have seen a bent pin on that connector cause the C2840
                                👍 2

                                Comment

                                • KYO_OEM
                                  Senior Tech

                                  500+ Posts
                                  • Aug 2011
                                  • 709
                                  #9
                                  C1950 >> no communication with belt eeprom anymore
                                  C2840 >> belt cleaning motor error
                                  Looks like bent pin or broken transfer connect pwb
                                  take a look for wiring and pwbs

                                  C1950 wiring.jpg
                                    👍 2

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