Just chiming in with my printer experience. My DD is a college freshman this year. She can print for free (up to a certain number of pages per semester) and so we opted to NOT send her to school with a printer. It was working pretty well the few many weeks and she was even able to use a suite-mate's printer a few times, but all it took was one 1:00 am call from her saying "stay on the phone with me while I walk to the library (in the cold, in the dark, by herself) to print xxx" and I bought her a printer the very next weekend! First of all, of course, I was concerned for her safety.... second, I was concerned for my interrupted sleep

, and third, I was concerned about the extra time it was going to take her on a night when she was already near to pulling an all-nighter with homework.
You might want to send her to school with a small printer (and paper and ink) but NOT open it. If she first few months go by and she doesn't need it, great, then return it.... but if she needs it, she has it. Just a thought.........P