You will get an error message saying it can only use a Samsung printer. If you don't have a Samsung, but do have a wireless printer, I suggest you download an app called PrinterShare from the Google Play Store. The basic version is just to check and make sure the app works with your wireless printer or Bluetooth device. If you want to use it regularly, the Premium Version will cost you $12.99 (or at that was what it cost when I purchased mine). It works great. I'm sure there are other apps out there as well, but this is what worked for me.
With the release of the Jelly Bean Operating System, the screenshot icon was eliminated from the 7" tablet. You have to push the Power and Volume buttons simultaneously for 1-2 seconds to take a screen shot.
I got my Galaxy Tab 2 (7", wi-fi) model number GT-P3113, on Jan. 24, 2013 and it came loaded with the 4.1.1 Jelly Bean OS. I did a software update and got a message stating that no newer version was available to my device. I LOVE this tablet! It is so easy to set up and use.