Jquery Print

$('#print_btn').click(function printData()
{
w=window.open();
w.document.write($('#printblock').html());
w.print();
w.close();

return false;
});

<input id = "print_btn" class = "btn btn-success" type="button" value="Print Invoice"/>

<div id="printblock" style="display:none;">
Hello
</div>