title: schema.org microdata - image required for Article
body: <p>Every example I find for <a href="https://schema.org/Article" rel="noreferrer">https://schema.org/Article</a> gives at least one error in the Google Structured Data Testing Tool</p>
  
  <p>Supposedly <code>headline</code> is now required; that's fine, just change <code>itemprop="name"</code> to <code>itemprop="name headline"</code></p>
  
  <p>But it also gives the error:</p>
  
  <pre><code>A value for the image field is required.
  Required by:
  Articles Rich Snippets
  </code></pre>
  
  <ul>
  <li>why is an image required for Articles?</li>
  <li>why isn't this documented anywhere?</li>
  <li>what should I give as an image?</li>
  </ul>
  
  <p>I've heard people say the image should be an image <strong><em>of</em></strong> the article (literally interpreting the documentation: "An image of the item.") - Like an actual screenshot of the article. Isn't that useless? Is that even correct? Do I have to give an image? Will the same blank image or logo be ok for every article? Or would duplicate images get penalised due to not being relevant?</p>