斑馬條碼打印機（ZPL打印機：110Xi4 , 140Xi4 , 170Xi4 , 220Xi4 , R110Xi , R110Xi HF , R170Xi , 110XiIIIPlus , 140XiIIIPlus , 170XiIIIPlus , 220XiIIIPlus , 105SL , S4M , ZM400 , ZM600 , RZ400 , RZ600 , GX420t , GX420d , GX430t , GK420t , GK420d , RW 220 , RW 420 , RW 420 Print Station , 110PAX4 , 170PAX4 , R110PAX4 , C# , R110Xi4 , QLn 220 , QLn 320 ）如何通過以太網接口TCP/IP發送ZPL指令到條碼打印機呢？ 下面通過C#與VB.net中的例子來進行說明： 1、C#中的例子 // Printer IP Address and communication port string ipAddress = "10.3.14.42"; int port = 9100; // ZPL Command(s) string ZPLString = "^XA" + "^FO50,50" + "^A0N50,50" + "^FDHello, World!^FS" + "^XZ"; try { // Open connection System.Net.Sockets.TcpClient client = new System.Net.Sockets.TcpClient(); client.Connect(ipAddress, port); // Write ZPL String to connection System.IO.StreamWriter writer = new System.IO.StreamWriter(client.GetStream()); writer.Write(ZPLString); writer.Flush(); // Close Connection writer.Close(); client.Close(); } catch (Exception ex) { // Catch Exception } 2、VB.net中的例子： Dim ipAddress As String = "10.3.14.59" Dim port As Integer = 9100 Dim ZPLString As String = _ "^XA" & _ "^FO50,50" & _ "^A0N,50,50" & _ "^FDHello, World!^FS" & _ "^XZ" Try 'Open Connection Dim client As New System.Net.Sockets.TcpClient ; client.Connect(ipAddress, port) 'Write ZPL String to Connection Dim writer As New System.IO.StreamWriter(client.GetStream()) ; writer.Write(ZPLString) writer.Flush() 'Close Connection writer.Close() client.Close() Catch ex As Exception 'Catch Exception Here End Try
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