I have a client that is having problems with two separate printers. The first is an HP LaserJet 1320N which is printing out the same pages of information almost every day. It happens around the same time of day, which is mid morning. What is printing out on one printer is two separate PDF files that were originally printed off of a web site. I have checked the print queues on the computer that they think printed them and nothing is stuck there.
The other is an HP Color LaserJet 2500CN which does roughly the same thing but is more random, it prints out large print jobs instead of single pages.