SATO printer printing C#.net windows application

public static bool SendPrintJob(string sendString, string ipAddress, int port)
        {
            bool bReturn = true;
            sendString.ThrowIfNullOrEmpty("sendString");
            ipAddress.ThrowIfNullOrEmpty("ipAddress");

            if (port <= 0)
                port = 9100;

            Socket sock = null;

            try
            {
                IPEndPoint remoteIP = new IPEndPoint(IPAddress.Parse(ipAddress), port);
                sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IAsyncResult results = sock.BeginConnect(remoteIP, null, null);
                bool success = results.AsyncWaitHandle.WaitOne(5000, true);

                if (!sock.Connected)
                {
                    //Raise error message to user that printer failed to print
                    bReturn = false;

                    //Socket error occured
                    Log.WriteToErrorLog("Error in socket connection: Could not connect to printer.", "", "Socket Error: SendPrintJob");
                }
                else
                {
                    byte[] sendData = Encoding.ASCII.GetBytes(sendString);
                    int result = sock.Send(sendData, sendData.Length, 0);

                    if (result == 0)
                    {
                        //Raise error message to user that printer failed to print
                        bReturn = false;

                        //Socket error occured
                        Log.WriteToErrorLog("Error in socket transmission: Could not send data to printer.", "", "Socket Error: SendPrintJob");
                    }
                }

                return bReturn;
            }
            finally
            {
                if (sock != null)
                    sock.Close();
            }
        }