The "print screen" key doesn't actually print the screen
(kinda wierd), what it does is copy a picture of the
screen to the clipboard, the same as using the copy
option. After you hit the printscreen key, you can
then "paste" the image of the screen into a photo editing
program such as Arcsoft or Adobe Photoshop, or Microft
Paint, then you can print the picture of the screen on
your printer....FYI, the printscreen key will also capture
a picture of the screen when you're playing a game.