Tabblo Print Toolkit

The Tabblo Print Toolkit (TPT) is a suite of developer tools for making websites more printable. With our first release you will be able to re-format a web page into printable templates through calls to our templating engine.

Information may be a little dated but it does have some good information and the site contains links to other useful information about printing. The article at A List Apart is one I recommend to people all the time.

Link:
http://developer.tabblo.com/