This one is a doozy. Small office environment (2 laptops) They have a HP Color LJ CM2320fxi printer and a HPO M2727np B/W printer Both printers mysteriously and simultaneously started spewing out hundreds of pages of nonsense, 10 characters to 2 lines. Diagnosed it down to one of the laptops. It has Windows 7 32b professional. Used print manager.... Nothing in queue Removed drivers Reinstalled new drivers Same results. I turn on PC and in 15m the printers start spewing Removed both printers and drivers Same results. I turn on PC and in 15m the printers start spewing Installed downgraded generic versions of drivers for both printers for younger model HP printers of appropriate type Same results. I turn on PC and in 15m the printers start spewing Removed all the extra HP software from startup and services Same results. I turn on PC and in 15m the printers start spewing The client has had this problem for 2 weeks and didnt advise me on it so I cant do a restore point. Windows backup only has a copy of the latest OS which is later than the date this started happening. Ran a virus scan and nada (just in case) Nothing in queue. This setup has been working for over a year. Ive been in IT for 15 years and have never seen anything like this.