There are printers on all levels of Olin Library and at all the other libraries. Costs are $0.04 for black & white, single-sided and $0.06 ($0.03 per side) for black and white, double-sided. You can also print in color: $0.25 single-sided, and $0.40 double-sided ($0.20 per side). Amounts are deducted from your PaperCut printing credit, and, if you've run out of credit, amounts are then deducted from you Campus Card account (this is different from your meal points).
To print in the libraries, you can send a print job from any library computer, or from your laptop (as long as you have downloaded the driver from the Student Technology Services website). After you have submitted your job, you can go to any printer in the library, swipe your Campus Card ID or type in your WUSTL key, then choose the job you'd like to print. More info on printing.
There are scanners on levels B, A, 2, and 3 in the stacks area adjacent to the catalog-only terminal, and on level 1 in the copying room. To use these scanners, you'll need to login with your WUSTL Key. You can scan and save to a USB drive, or email your scanned files to yourself directly. Detailed instructions are posted at each station.
You can also use the multi-fuction printers on each floor to scan documents. Just log in with your WUSTL key, and select the Email function. These only allow you to email the files, but there are more of these stations around the library.
Both Olin Library and the Art and Architecture Library have Bookeye overhead scanners. The scanner in Olin is located on level 1 near the public computer terminals.
You can make copies at any multi-function printer in the library. Either swipe your Campus Card ID, or enter your WUSTL key, then select the Copy function. Copies cost the same as printing - $0.04 single-sided black and white, $0.06 double-sided black and white, $0.25 color single-sided, and $0.40 color double-sided. More info on copiers.