You mean there isnt a Print Screen? Damn, how old is the laptop, lol
There's nothing to do with age. Laptop keyboard are really really shrunk so you wouldn't carry a big thing. Some of them, you have to press Fn+something to make them work. In his case, Fn+Print screen or Print screen
would do for me.
Mine is just the prtsc button , but yea Just do what Seti says, hit the prtsc button then open up paint and hit control+v to paste and you should be good , if not i know that their is programs that can take screen shiots to , good Luck