Are you talking about this particular page because you designed it, or because you want to print this very page?
When writing CSS, you can specify which medium should be using the styles specified. If media attribute is omitted, then all media uses it. On the mentioned page, the main stylesheet applies to the medium "screen", meaning on your computer screen. There is a second stylesheet that applies to "print", which means for printed material. This was designed because most people do not want to print navigation menus, ad boxes and other web related features that have no value on the printed paper.
So, in the case of laptop.org, you cannot print the screen version at this point. If you can change the page, then you would omit the media attribute from the main stylesheet.
On your page, you simply decide if you want a separate stylesheet for printing (media="print"), or if you simply want a couple of changes to your main stylesheet (no media attribute or media="all"). I usually work from the main stylesheet (to retain the usual page look and feel) and remove all the unnecessary graphics and element sections (searches, navigation buttons, etc).
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