Come mai visualizzo solo un record e non tutti i dati del recordset?

codice:
<%@language=javascript%>


<%
var Rec=Server.CreateObject("Adodb.Recordset")
var SQL="SELECT * FROM CaricoArt"  
Rec.Open(SQL,Conn,1,1)

var Cod1=Rec("Cod1");

var pdf=new FPDF();

pdf.CreatePDF()
pdf.SetPath("Stampa/fpdf/");

pdf.Open();
pdf.AddPage()

pdf.Cell (20,5,Cod1,0,"L");

pdf.Close();
pdf.Output();