The Mitsubishi P95D is the latest model in a line of Medical/Scientific monochromatic thermal printers that can often be found attached to the likes of Ultrasound stations.
As of December 20th, it now has first-class Linux support as part of Gutenprint, complete with status/error reporting, mutiple copy support, custom page sizes, and every other feature the printer exports.
I may try to extend support to older models in the family (P93 and P91) or other MedSci thermal printers if there's any interest.
Oh, here's a shot of the P95 in action:
Update 2017/02/11 The Mitsubishi P93D now has first-class support as well.