Also known as a "serial dot matrix printer." The dot matrix printer uses ... The more hammers, the higher the resolution. For example, 9-pin heads produce draft quality text, while 24-pin heads ...

Dot matrix printers are the dinosaurs that won’t go ... replaced by a row of metal pins controlled by solenoids, each pin being capable of printing a single pixel. At their best they could ...

This is witnessed most clearly in the then-dominant configuration of printer heads—specifically the 9-pin printer heads found ...