Brother HL-3140CW. Color laser printer. If you'd have told me it'd still be working ten years later, I wouldn't have believed you. I print so sporadically, but when I do, it just works. Does AirPrint from smartphones, etc.
My only complaint with this model is that it actually has no Ethernet port, so it connects only via WiFi. Seems like a strange trade-off for something like a printer.