Usually press "shift" key and look for "PRN SCN" just to the right of F12... depending on your key board layout. Once you do that, go to any graphics program to paste what the screen capture
Kubota M59, Kubota L3800, Grasshopper 428D, Topkick dump truck, 3500 dump truck, 10 ton trailer, more lighter trailers.
That looks like a computer screen shot in which case I have no idea how to do it. If you're using an IPad or iPhone you can press the home button and the power button at the same time and it will take a screen shot.