The libcommons printer is in the Coffee Commons on the first floor.
The lib2 printer is on the second floor (the parking lot side of the library).
In the event of a paper jam or printer problem, you can pick up your print job from either of these printers. For instance, you send a print job to libcommons but discover it isn't working; you can go to the second floor and pick up your job by signing in with your ID card on the lib2 printer. This also works with other lab printers around campus: in Pleasants, Dana, etc.