Okay there’s a tool you can use that can help you decode what’s being printed onto your paper and can also help you anonymize your printing. I would highly recommend using and sharing! https://github.com/dfd-tud/deda
Wow I just found out that color printers add coded dots onto every page you print so that it can be traced back to where and when it was printed. Umm.... did anyone else know about this https://en.wikipedia.org/wiki/Machine_Identification_Code