Reportviewer Auto Print Issue In IIS

[Sonia]

Hi,
I have a aspx page with telerik Reportviewer. I want to auto print the Reportviewer when filter button in my page is clicked.
I have used the following code on filter button's click event.

   protected void filter_Click(object sender, EventArgs e)
   {
        var printScript = "";
        printScript += "ReportViewer.OnReportLoadedOld = ReportViewer.OnReportLoaded;";
        printScript += "ReportViewer.prototype.OnReportLoaded = function()";
        printScript += "{";
        printScript += "this.OnReportLoadedOld();";
        printScript += ReportViewer1.ClientID + ".PrintReport();";
        printScript += "}";

        ScriptManager.RegisterStartupScript(this, GetType(), "ReportPrint", printScript, true);
   }

This code is working fine on localhost but it is not working on web server.
Please let me know what is going wrong.