The closest thing you’re likely to get is a black and white Brother laser.

It’s as open as a printer is likely to ever be in terms of driver support, the availability of parts is reasonable, and you plug the thing in via USB and then forget it exists until you need to print something.

I have a 2300D I’ve had for most of a decade now and the only thing I’ve had to do is put paper in it.

Wow, I’m shocked that they’re going to sell the biometric data to anyone who wants it. Well, not that shocked. Actually, not shocked at all.