Update - May 11 at 10:57 am: The issues affecting uPrint have been resolved. You should now be able to print, copy and scan from uPrint machines.
Original announcement- May 11 at 9:33 am: Due to a server connection issue, the uPrint system is currently unavailable. Although you may be able to send jobs to uPrint machines, you will not be able to print, copy or scan using these machines. IT Services is investigating this issue. We apologize for the inconvenience.