Seeing yellow printer dots in my mind

I’d heard that several laser printer manufacturers had started encoding information onto every color page printed on some of their printers but hadn’t realized just how many were doing it.

There are dozens of printers that carry information that you can’t see and didn’t authorize.

http://www.seeingyellow.com/ from MIT is urging people to contact their printer manufacturer and request information on turning off that "feature".

Perhaps not everyone will be ratted out to the SS.