Rules change but no one tells me. I can no longer sign up printers for the class in the Digital Imaging Studio. Which means if you want to print larger than 17" you will need to call and make an appointment with Dave in the DIS. Call Dave at 415-351-3501 for an appointment. The DIS is open M-F 10-6 Late Night Wednesday until 10pm and Sat 12-6. Sorry about the misunderstanding.