A while ago I bought a bw laser printer from a brand I've never heard of: "Pantum". Specifically the Pantum P2500W, for 49,95€ (~ 53$). I have never seen them in a store in (western/central) Europe either.
It does not have a display, in general it's the simplest, minimalist printer I've ever owned I'd argue.
CUPS configuration exist in the Arch AUR (for usage with USB), and driverless printing with AirPrint (which also works with CUPS) is supported. This new driverless stuff works really nice in general, glad to use this instead of unreliable driver printers (which sometimes are not even available in low quality for Linux).
It does not require an internet connection and appears to not have any DRM on the cartridges: I use a 20€ (~ 21$) no-name toner cartridge from Amazon, and it works perfectly fine. In fact it doesn't have a display to complain about this (like my 10+ year old HP, which even back then showed me ads for their own cartridges, and HP paper).