title: UIPrintInteractionController - No document-format-supported attribute found or no supported formats found
body: <p>I use airprint to print to a compatible airprint label printing device. When attempting to print a label, I sometimes get the following errors:</p>
  
  <blockquote>
    <p>No document-format-supported attribute found or no supported formats found.
    No mediaColSupported found, defaulting to media-bottom-margin, media-left-margin, media-right-margin, media-size, and media-top-margin.
    No print-quality-supported attribute found.  Defaulting to normal quality.
    No sides-supported attribute found.  Defaulting to PKDuplexNone.</p>
  </blockquote>
  
  <p>When this error pops up, the label comes out scaled wrong.
  When this error doesn't pop up, the label comes out correctly.</p>
  
  <p>Any help to point me in the right direction to solve this issue is appreciated.</p>