I have been working to find an alternative for Arts and Sciences students who will face printing charges in the ArtSci Computing Center this fall. While it doesn't look like we'll be able to make it free, I can tell you that the fee will be lower than the library ($0.04 single sided and $0.06 double-sided). I am also working with the administration to implement a plan that may let you pay for pages in advance at a reduced rate.
I don't want to see juniors and seniors with no free printing on campus (freshmen and sophomores have their dorms). Tuition and textbooks are expensive enough! Hopefully I'll be able to ensure that all upperclassmen who live in ResLife buildings will have printer access. I will keep you updated on my progress with the ArtSci Lab... send me suggestions!
Visit the ArtSci Computing Center's website for details: http://computing.artsci.wustl.edu/printing