title: Command not being understood by Zebra iMZ320
body: <p>I'm trying to print a label from an Android app to a Zebra printer (iMZ 320) but it seems not to be understanding my command line.</p>
  
  <p>When I try this sample code, the printer prints all the commands to the paper as I send them to the printer:</p>
  
  <pre><code>zebraPrinterConnection.write("^XA^FO50,50^ADN,36,20^FDHELLO^FS^XZ".getBytes());
  </code></pre>
  
  <p>I've read the ZPL programming tutorial from Zebra's official website, but I can't figure out how to make my printer work all right with ZPL commands.</p>