HP Designjet T7100 paper error occurs

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  • Profibastler
    Technician

    50+ Posts
    • Nov 2014
    • 98
    #1

    HP Designjet T7100 paper error occurs

    Hello,
    can anybode help please?
    Designjet starts normal without problem.
    When initial is finish and open frontcover to change
    printhead, the carriage is working bad.
    The linear movement appears to be heavy,
    but the guidance is clean and oiled.
    If the carriage is moved by hand,
    there is no noticeable obstacle.
    Paper jam trouble is displayed.
    Please see movie also:
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    Tags: carriage, designjet, oiled, paper
    • Kiran Otter
      Service Manager

      Site Contributor
      VIP Subscriber
      1,000+ Posts
      • Dec 2013
      • 1106
      #2
      Re: HP Designjet T7100 paper error occurs

      Yikes. If I had to guess, the belt is either not installed at the back of the carriage correctly, or the back of the carriage is broken and allowing the belt to slip. Try moving the carriage while holding onto the belt and see if it slips. If it does, then check where it threads through at the carriage.

      And make sure the tensioner is fully tightened.

      Kiran

        Comment

        • Profibastler
          Technician

          50+ Posts
          • Nov 2014
          • 98
          #3
          Re: HP Designjet T7100 paper error occurs

          The tensioner is spring-mounted and at the strongest level.
          The carriage can be moved quickly by hand without any problems.
          Could it be an Axis motor problem?

            Comment

            • Kiran Otter
              Service Manager

              Site Contributor
              VIP Subscriber
              1,000+ Posts
              • Dec 2013
              • 1106
              #4
              Re: HP Designjet T7100 paper error occurs

              Try moving the carriage while holding onto the belt and see if it slips. If it does, then check where it threads through at the carriage.

              Make sure you can NOT move the carriage independent of the belt.

              Kiran

                Comment

                • Profibastler
                  Technician

                  50+ Posts
                  • Nov 2014
                  • 98
                  #5
                  Re: HP Designjet T7100 paper error occurs

                  Originally posted by Kiran Otter
                  Yikes. If I had to guess, the belt is either not installed at the back of the carriage correctly, or the back of the carriage is broken and allowing the belt to slip. Try moving the carriage while holding onto the belt and see if it slips. If it does, then check where it threads through at the carriage.

                  And make sure the tensioner is fully tightened.

                  Kiran
                  Doesn`t slip and back of carriage is not broken. belt is correctly threads through the carriage. There`s nothing to fix.

                    Comment

                    • Kiran Otter
                      Service Manager

                      Site Contributor
                      VIP Subscriber
                      1,000+ Posts
                      • Dec 2013
                      • 1106
                      #6
                      Re: HP Designjet T7100 paper error occurs

                      Alright, thank you for verifying it's not the belt/carriage. I don't think the motor is at fault because in my experience they never fail, but that doesn't mean it's bad. But I would suspect it last. Can you run the carriage axis test and see what happens?

                      Is there any excessive play in the carriage?

                      Kiran

                        Comment

                        • Kiran Otter
                          Service Manager

                          Site Contributor
                          VIP Subscriber
                          1,000+ Posts
                          • Dec 2013
                          • 1106
                          #7
                          Re: HP Designjet T7100 paper error occurs

                          When was the belt replaced last? Is it a belt from HP or China?

                          Kiran

                            Comment

                            • Profibastler
                              Technician

                              50+ Posts
                              • Nov 2014
                              • 98
                              #8

                                Comment

                                • Kiran Otter
                                  Service Manager

                                  Site Contributor
                                  VIP Subscriber
                                  1,000+ Posts
                                  • Dec 2013
                                  • 1106
                                  #9
                                  Re: HP Designjet T7100 paper error occurs

                                  I would suspect the belt then if it's not genuine. It also appears to have a lot of slack in it based on the video. I would get a genuine belt first before throwing other parts at it.

                                  Kiran

                                    Comment

                                    • blackcat4866
                                      Master Of The Obvious

                                      Site Contributor
                                      10,000+ Posts
                                      • Jul 2007
                                      • 22999
                                      #10
                                      Re: HP Designjet T7100 paper error occurs

                                      Did you clean the timing pulley on the carriage motor. I've seen the rubber shavings from the old belt pack into the grooves of the timing pulley, making it slip. I don't think that I've ever seen a failed carriage motor. I've changed a few carriage motors, and it did not solve my issue. =^..^=
                                      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 =^..^=

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