Print This Button
The Print This button acts as a shortcut that brings up a menu of reporting options that are associated and available to print from that view. The Print This button is not a “print screen” button. It’s an easy way to run report associated to the type of view that your on.
If you would like to print an image of your screen you have to create a screenshot of your screen. Here’s an article on how to do that: http://www.wikihow.com/Take-a-Screenshot-in-Microsoft-Windows