title: Sending raw ZPL to Zebra printer via PrintServer is not working
body: <p><strong>Problem</strong></p>
  
  <p>I am trying to send zpl RAW to print server. There is a Zebra ZM400 printer. 
  I could get PrintServer, PrintQueue objects. Also, I could add a job, and write to its JobStream.</p>
  
  <p>I checked print queue (on Windows), and the document was sent. The printer data light blinks for 1/2 seconds.</p>
  
  <p><strong>Progress</strong></p>
  
  <p>Here is my code for print to print server:</p>
  
  <pre><code>PrintServer ps = new PrintServer(@"\\192.168.1.1");
  PrintQueue pq = ps.GetPrintQueue("Printer 01");
  
  Byte[] myByteBuffer = Encoding.ASCII.GetBytes(
      @"^XA^MMP^PW300^LS0^LT0^FT10,60^APN,30,30^FH\^FDSAMPLE TEXT^FS^XZ");
  
  PrintSystemJobInfo psji = pq.AddJob();
  psji.JobStream.Write(myByteBuffer, 0, myByteBuffer.Length);
  psji.JobStream.Flush();
  psji.JobStream.Close();
  </code></pre>
  
  <p><strong>Issue</strong></p>
  
  <p>When I check print queue (on Windows), the document has 0 bytes. And then, the printer prints nothing.</p>
  
  <p>Do I missing some special char? Or, do I send wrong raw data?</p>