Since it is not free for printing at the University of Ottawa (I really hate it), I strongly recommend buying a personal printer if you have to print many references everyday.
If you want to print or copy something on campus, you can get a photocopy card in the library. You need to spend $2 to buy a card and add some money into your card (For details, please go to any library at university to ask).
Normally, it costs $0.09 for printing and $0.08 for photocopy…