title: How to add user defined character set in Thermal printer using Escape sequence?
body: <p>I want to add Hindi character set into my Thermal printer (Gprinter Model:GP-U80030I) using escape sequence (ESC/POS). I read Escape commands from program manual. In what sequence I should send commands to printer. 
  Commands to be used are:</p>
  
  <pre><code>ESC % n
  ESC &amp; y c1 c2 [x1 d1...d(y X x1)]...[xk d1...d(y X xk)]
  ESC ? n
  </code></pre>
  
  <p>I am sending ascii values to printer (ex. ESC - 27, % - 38 etc).</p>