That would be a daisy wheel printer. They produced the best looking printouts before laser printers were invented.... To print them out, I had to change the type thingie in the printer to one that had the correct characters (umlaut, etc.). if I recall correctly the type disk was flat and round, like a wheel with many spokes.
The one notable exception was the IBM Quietwriter. Available either as a printer or a typewriter, it was a unique kind of thermal-transfer dot matrix printer that produced very high-quality output and was very quiet. (Here are some images of the typewriter version, in case you're curious.)
Back when I was in high school, the office had a Quietwriter (and its optional sheet feeder accessory) attached to its computer (an IBM PC/AT). I was extremely impressed, given the fact that every printer I had seen prior to then was either 9-pin dot matrix (loud and low resolution) or daisy wheel (louder and text-only).