A Canon printer. Not just a simple one, but a big (wide) one with real ink tanks, about 20 years ago.
Under Linux, I could only access basic printing services with that, and this only by using a default driver not made by Canon that happened to work. So I contacted Canon to get a proper user manual to create a proper device driver for this (something I could have done without problems), and basically got the answer that they would not support this, as "open source is theft of intellectual property". They also had some very choice words about Linux in general.
I assumed I just got an asshole on the phone, so when I attended Cebit a short time later (back then the biggest trade fair in Europe for things like that), I went to the Canon booth, explained my issue, and basically got the same reply. So I sold the Canon printer and bought an HP one. At least HP supported Linux and supplied working drivers. Sadly, they have really gone down the drain since that, so the next printer will be a different brand again...
Well, the question for me back then was printing wide, so the selection was quite limited from the start. And laser was completely out of the equation, as anything printing wider than 21cm was industrial (size of a bus and price of a house) back then.
Ink stinks, but I'll condone the toner. Inkjets are so unreliable compared to lasers. Good luck, but I worry you're stacking the deck against yourself a bit with the ink and would hate to see you lose here.
I've had it for 8 years now, and so far it's only on its second set of toners etc.
The only warning I give to brother printer owners is don't leave them on. The capacitors in them aren't the best and your printer will either not turn on without a long power off, or like mine it will turn on and off randomly all day and night.
So now I only turn it on at the wall when I need it, and unplug it after
1012 and ilk were also good, from the same era. I still have one of those running.
My LJ4+ lasted 21 years, the first part in an office setting and the latter a retirement in my home (and about 12 house moves). For its 19th I got its RAM filled. Woo! But we decided "as a household" that we didn't need a reliable energy pig printer for a few pages a month. It made the lights flicker and the UPSes report a brownout. But it was a good printer.
Now we have an m404n and it's everything today it needs to be.