Another way Quinn could have used to trick the finger print scanner

Instead of slicing off the layer of his finger, which I'm sure would have hurt a lot, he could have used glue instead. By putting a layer of Elmer's glue onto his thumb and letting it dry for several minuets, and then peeling it off which leaves an imprint of your finger on the thin layer of glue. I try this a lot for fun and it always leave your palm or finger print in it.