ScrollY position to Top when change page

Hi,
I've st scrollY and when I select 100 rows for page correctly he shows me the scrollbar.

$(document).ready(function() {
    var table = $('#clienti').DataTable( {
        data: dataSet,
        responsive: true,
        "scrollY": scrollY + "px",
        "scrollCollapse": true, 
        "processing": true,         
        columns: [

My problem is when I move scroll for example in the middle and then I change page it keeps scrollbar position while I would like it to be positioned to Top.

I suppose that:

$(document).ready(function() {
    $('#clienti').on( 'page.dt', function () {alert('Do something on scrollbar'); });
} );

moreover if I try to use $.fn.dataTable.FixedHeader and move the scrollbar and change page I create a double header at the beginning of my web page, unless you first place the scrollbar by hand to top before changing page!

Sorry for my english