If you are printing wirelessly on campus from a personal device the printers will also have your credentials cached, and it is important that we change them, so that you are not locked out of your account.
While on campus, using your laptop or other device you have been printing from go to the start menu and start typing credential manager. Once it appears click on the "Credential Manager" 
Once you have opened up the Credential Manager you will see the link to "Remove from vault" Click this link to remove it.
Or you could click on the "Edit" link and change the password. With no need to add it again.

Follow the link to put your password back in and reset it back up.
What other locations and printers are available on campus?
For more help on Wireless Printing problems feel free to call the Help Desk at X9000.