="language-dart"><code class="language-dart">enum PrinterStatus {
  ERROR,
  NORMAL, 
  ABNORMAL_COMMUNICATION, 
  OUT_OF_PAPER, 
  PREPARING,
  OVERHEATED,
  OPEN_THE_LID, 
  PAPER_CUTTER_ABNORMAL,
  PAPER_CUTTER_RECOVERED,
  NO_BLACK_MARK,
  NO_PRINTER_DETECTED,
  FAILED_TO_UPGRADE_FIRMWARE,
  EXCEPTION
}
</code></pre>
<h3 id="list-of-printer-verbose-status">List of printer verbose status</h3>
<pre class="language-dart"><code class="language-dart">{
    'ERROR': 'Something went wrong.', 
    'NORMAL': 'Wo