DP-7170 /DP-7160 issues double feeding intermittently

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  • monstercopier
    Technician

    50+ Posts
    • Jun 2019
    • 60
    #16
    Originally posted by KYO_OEM
    we removed spring, stopper and pad to decrease the pressure and it works well.
    Feed DP.jpg
    Let`s try if it works.
    thats interesting, will have to give it a try. seems opposite of the dang bulletin too.

    thanks keep you all posted.

      Comment

      • KYO_OEM
        Senior Tech

        500+ Posts
        • Aug 2011
        • 714
        #17
        it`s not oppsite, it`s not enough.....
        old spring 1,2N load, new spring with 0,45N load.
        in case of usage from bad quality paper you get this kind of problems.
        One system meanwhile runs 160k scans with our modification.
        Jamming not gone in total, but decreased dramatically...and acceptable from end customer.
        Now after 362K in total, new paper feed roller assy needed.
          👍 1

          Comment

          • nathicana
            Trusted Tech

            Site Contributor
            250+ Posts
            • Aug 2008
            • 335
            #18
            Originally posted by monstercopier

            thats interesting, will have to give it a try. seems opposite of the dang bulletin too.

            thanks keep you all posted.
            The new spring lessens the pressure so removing the spring is consistent with the intent of the bulletin.

            You are assuming that since the new spring is longer and more expanded then it must be stronger.

            Removing the spring may cause a few no feeds though.
              👍 1

              Comment

              • monstercopier
                Technician

                50+ Posts
                • Jun 2019
                • 60
                #19
                Originally posted by nathicana

                The new spring lessens the pressure so removing the spring is consistent with the intent of the bulletin.

                You are assuming that since the new spring is longer and more expanded then it must be stronger.

                Removing the spring may cause a few no feeds though.
                Do you think this will help pages double feeding thru the ADF?

                As I mentioned the biggest issue is with 200 page scans, the computer will show 194 pages in the document versus 200 actually scanned.

                We are replacing the Sep roller to help with this as well.


                  Comment

                  • ThisPete
                    Too old to care

                    Site Contributor
                    100+ Posts
                    • Jun 2014
                    • 207
                    #20
                    Originally posted by monstercopier

                    Do you think this will help pages double feeding thru the ADF?

                    As I mentioned the biggest issue is with 200 page scans, the computer will show 194 pages in the document versus 200 actually scanned.

                    We are replacing the Sep roller to help with this as well.

                    I have seen many times over the years that lessening the pre-load of the primary feed or double feed prevention rollers helps prevent double sheet feeding.. even though that goes against logic. 👍
                      👍 2

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