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
Also, Electronic Frontier Foundation was instrumental in discovering the usage of this coding mechanism and helping protect whistleblowers. They’d be a good group to support if you ever have spare cash. https://www.eff.org/