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我有一台使用此代码打印良好的 epson 售票机 -->

    static SerialPort _serialPort = new SerialPort("COM10", 38400, Parity.None, 8, StopBits.One);

        static void Main(string[] args)
        {
            _serialPort.DtrEnable = true;
            _serialPort.Handshake = Handshake.None;
            Byte[] cashDrawerCmd = { 27, 112, 0, 25, 250 }; 

            try
            {
                if (!(_serialPort.IsOpen))
                 _serialPort.Open();

                _serialPort.WriteLine(" ");
                _serialPort.WriteLine("*********Prueba*********** ");
                _serialPort.WriteLine("*********************** ");
                /* _serialPort.WriteLine(" " + GetLogo()); */
                _serialPort.WriteLine("Prueba \r\n");           

                _serialPort.Write(cashDrawerCmd, 0, cashDrawerCmd.Length);
              //is not working thiscode for open drawer

                 OpenDrawer(); //is not working this function neither   
                 Console.ReadLine();
            }
            catch (Exception ex)
            {
               Console.WriteLine("Error opening/writing to serial port :: " + ex.Message, "Error!");
            }
} 
     public static void OpenDrawer()
        {

     _serialPort.Write(char.ConvertFromUtf32(27) +
    char.ConvertFromUtf32(112) +
    char.ConvertFromUtf32(0) +
    char.ConvertFromUtf32(5) +
    char.ConvertFromUtf32(250));

        }

我想打开抽屉机,但没有打开。我已经查找了信息,并且在大多数文档中都说默认命令是 --> 27, 112, 0, 25, 250 ,但它在我的控制台应用程序中不起作用。如果您查看上面的代码,我已经尝试过两种方式,但两者都不起作用。我希望有人可以在这里帮助我。谢谢你。

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