From Seo Wiki - Search Engine Optimization and Programming Languages
Printer friendly is a term used on the Internet to describe a version of a web page formatted for printing. Normally, web pages include information and navigation content that is only useful while browsing the website. Printer friendly pages are designed to fit on an 8.5"x11" or A4 sheet (see paper sizes) and include only the content of the page, along with source information.
Printer friendly pages are usually accessed through a link on the standard page. Often the link will be indicated by a printer icon.
Designing printer-friendly pages with CSS
Web page designers can use CSS2 media types to create one set of styles for display on a computer screen, and another for printing. For example, navigation areas might be set as display:none in the print stylesheet to remove them from the printed output, and sans-serif fonts replaced by serif fonts for ease of reading. This technique eliminates the need for a separate printer-friendly page to be maintained.
<link rel="stylesheet" type="text/css" href="screen.css" media="screen" /> <link rel="stylesheet" type="text/css" href="printing.css" media="print" />