How will I know when I am running low on paper credits?

You will be notified by email to your CS email account when you have 20 or fewer paper credits left and/or if you do not have enough paper credits left for a particular print job. NOTE: If you run out of page credits, you will not be able to print until you purchase more.

See Also:
How do I read my CS email?
How many paper credits do I receive in the lab for "free"?
How do I receive more paper credits?