Hi there, adding a print stylesheet to your site can be done following these steps:
1) Set up a child theme, so your changes won’t be overwritten when you update the theme. If you’re new to child themes, you can explore these guides:
http://codex.wordpress.org/Child_Themes
http://op111.net/53/
http://vimeo.com/49770088
2) Create your new print stylesheet following the Codex guide and upload it to your server.
3) Create a copy of the file header.php and place it in your child theme. Add a link to your new print stylesheet in header.php, following the Codex example.
If you need more help, could you provide a link to your site? Thanks.
