just use this java script
function PrintDiv() {
var divContents = document.getElementById("ReportDiv").innerHTML;
var printWindow = window.open('', '', 'height=200,width=400');
printWindow.document.write('</head><body >');
printWindow.document.write(divContents);
printWindow.document.write('</body></html>');
printWindow.document.close();
printWindow.print();
printWindow.close();
}
it will close window after submit or cancel button click