ช่วยด้วยนะคะท่านอาจารย์ท่านเทพขอร้องคะ ปัญหาของ TCPDF+iReport+PHP

<?php

include_once('./library/tcpdf/unicode_data.php');
include_once('./library/tcpdf/tcpdf.php');
include_once("./library/PHPJasperXML.inc.php");
require_once('./library/tcpdf/config/lang/eng.php');


// mYsql Connect 
$db_hostname = 'localhost';
$db_username = 'root';
$db_password = 'root';
$dbname = 'e46';
mysql_connect($db_hostname, $db_username, $db_password) or die(mysql_error());
mysql_query("SET NAMES utf8");

//require_once('../include/config.inc.php');
//require_once('../include/mySQLTableDB.inc.php'); 
$xml = simplexml_load_file("report1.jrxml");
//$PHPJasperXML = new PHPJasperXML("th","TCPDF");
$PHPJasperXML = new PHPJasperXML("th");
//$PHPJasperXML->debugsql=true;
$PHPJasperXML->arrayParameter = array(
    "ClassID" => '10',
    "AcademicYear" => '2556'
);
$PHPJasperXML->xml_dismantle($xml);
$PHPJasperXML->transferDBtoArray($db_hostname, $db_username, $db_password, $dbname);
$PHPJasperXML->outpage("I");  //page output method I:standard output  D:Download file
?>


// create new PDF document  (เพิ่มตรงนี้ไปก็ยังไม่ได้คะ) 
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
 
// set font
$pdf->SetFont('thsarabun', '', 25); //ภาษาไทยใช้ได้
//$pdf->SetFont('angsanaupc', '', 10);  อันนี้สระลอย