ใช้ tcpdf ในการออกรายงาน เป็น pdf แต่พอขึ้นหน้าใหม่ หัวตารางจะหายไปไม่ทราบว่าจะแก้ไข code ตรงไหน

$this->data();
        $data = $this->c->_getcus($this->id_user);
        $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
        // set document information
        $pdf->SetCreator(PDF_CREATOR);
        $pdf->SetAuthor('Nicola Asuni');
        $pdf->SetTitle('TCPDF Example 011');
        $pdf->SetSubject('TCPDF Tutorial');
        $pdf->SetKeywords('TCPDF, PDF, example, test, guide');

        // set default header data
        //$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE . ' 011', PDF_HEADER_STRING);
        // set header and footer fonts
        //$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
        $pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));

        // set default monospaced font
        $pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);

        //set margins
        //$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
        //$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
        $pdf->SetFooterMargin(PDF_MARGIN_FOOTER);

        //set auto page breaks
        $pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);

        //set image scale factor
        $pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
        $pdf->setPrintHeader(false);
        //$pdf->setPrintFooter(false);
        //set some language-dependent strings
        //$pdf->setLanguageArray($l);
        // ---------------------------------------------------------
        // set font
        $pdf->SetFont('freeserif', '', 16);
        // add a page
        $pdf->AddPage();

        $tbl_header = '
            <table>
            <tr>
            <td style="border: 1px solid #000000; width: 150px;">รหัส</td>
            <td style="border: 1px solid #000000; width: 300px;">รหัส</td>
            <td style="border: 1px solid #000000; width: 10px;">รหัส</td>
            </tr>
            ';
        $tbl_footer = '</table>';
        $tbl = '';
        foreach ($data->result()as $row) {
            $tbl .= '
          <tr>
          <td style="border: 1px solid #000000; width: 150px;">' . $row->id_customer . '</td>
          <td style="border: 1px solid #000000; width: 300px;">' . $row->cus_name . '</td>
          <td style="border: 1px solid #000000; width: 10px; text-align:left">' . $row->cus_mobile . '</td>
          </tr>
          ';
        }
        $pdf->Write(0, 'รายชื่อลูกค้า', '', 0, 'C', true, 0, false, false, 0);
        $pdf->writeHTML($tbl_header . $tbl . $tbl_footer, true, false, false, false, '');
        $pdf->writeHTML($tbl_header . $tbl . $tbl_footer, true, false, false, false, '');
        // ---------------------------------------------------------
        //Close and output PDF document
        $pdf->lastPage();
        $pdf->Output('customer.pdf', 'I');