There is no better way to end a day at work then spending a bit of afterwork (unpaid) time getting a printer to demand more cheese to print. PJLTalk is your cheesy friend for this.
Note that this doesn't affect the printer's operation or stop it printing.
Updated 5th November 2009 at 12:05 PM by CAM
Indeed, I had some fun with this trick on April 1st. With a printer saying 'OUT OF CHEESE' and then when someone called me about it, changed it to 'OUT OF ONIONS'.