title: A0N size is different than expected when printed
body: <p>I have a strange problem. I got a new ZT220 printer (203 dpi - 8dpmm) and when I use simple A0N sizing to adjust font it prints font of incorrect size.</p>
  
  <p>For example a simple code:</p>
  
  <pre><code>^XA
  ^A0N,80^FO80,80^FD1^FS
  ^XZ
  </code></pre>
  
  <p>Should print number <code>1</code> exactly 1 centimeter tall (<code>80 / 8 = 10mm</code>), yet it comes out at around 7mm. Any advice?</p>
  
  <p>When I print a graphic, for example a box:</p>
  
  <pre><code>^XA
  ^FO80,80^GB80,80,1,B,0^FS
  ^XZ
  </code></pre>
  
  <p>This box comes out precisely 10x10mm. </p>
  
  <p>Why is it that the font doesn't scale properly?
  Note that I'm new to ZPL and this is my first Zebra printer. I use Ubuntu environment to send files to print, e.g.:</p>
  
  <pre><code>lpr -P &lt;printer name&gt; -o raw text.zpl
  </code></pre>
  
  <p>All I did was connect the printer through CUPS. Do I have to install the <code>default</code> fonts? If yes how do I do that on Ubuntu?</p>