Radical Edward 
non-tech person: I don't trust that tech.
tech user: it's fine, I don't even think about it
tech professional: I absolutely don't trust that tech.
eviloatmeal, resident Death Stranding 2 apologist (arch, btw)
Budhttps://en.wikipedia.org/wiki/Machine_Identification_Code
Printers are evil!
@BudNicaea @RadicalEdward Yep. You can see them with the naked eye if you have good lighting - give it a try with any nearby document that came out of a printer or copy machine.