RESOLVED: We have now observed printing to be going at normal speeds. Sorry for any inconvenience.
UPDATE: We just finished restarting several services and are looking into the problem to see if it was resolved.
We just got reports of slow printing in the libraries. We are currently working on the issue. I am about to restart several services on our server so printing may be offline for a minute or two. During this period jobs that are currently being printed may be lost, email email@example.com for a refund.