You'll need to set up a style for the copyright notice, which can be set to "display:none" in your on-screen stylesheet.
HTML: <p class="doNotDisplay">copyright notice</p>
CSS (screen): p.doNotDisplay {display:none}
CSS (print): p.doNotDisplay {display:block; position:fixed; bottom:0}
The CSS in the print stylesheet will put it at the bottom of each page in SOME browsers, but no guarantee it will work universally. CSS doesn't have good support yet for printing functions.