HTML5 is the proposed next standard for HTML 4.01, XHTML 1.0 and DOM Level 2 HTML and is estimated that HTML5 will reach W3C Recommendation by late 2010. Since the new HTML5 has got many new elements and attributes which reflects the usage on modern web sites, here IECSS has come up with the solution to print HTML5 pages with a proper format by using their new IE Print Protector.
How exactly IE Print Protector works?
How HTML5 elements are rendered?
This is what IECSS team explains: To display elements correctly in print, IE Print Protector temporarily replaces HTML5 elements with supported fallback elements (like div and span) when you print. IE Print Protector also creates a special style sheet or css for these elements based on your existing styles; this means you can safely style HTML5 elements by element name in links, styles, @imports and @media. Immediately after, IE Print Protector restores the original HTML5 element to the page, right where you left it. Any references to those elements and any events on those elements will remain intact.
Check out their example HTML5 page with IE Print Protector.