If you discover that a printer is not working properly, is jammed, needs toner/ink, or has an error message on the display, please send email to csstaff@cs.princeton.edu, so that we can fix the problem. Note that we do not, in general, leave toner/ink supplies by the printers, as you need to have some experience with the printers in order to prevent damage while replacing the consumables.
Please do not change printer settings using the front panel.