Epson Epson TM-U590 (112): Serial, w/o PS, ECW. Maximum print size: A4 (210 x 297 mm). Maximum print speed: 311 cps, Normal print speed: 233 cps, Character pitch: 16.7 cpi. Print head: 9 pin, Print direction: Bi-direction, Standard printer languages: PS-180. Buffer size: 4 KB. Standard interfaces: Parallel (IEEE1284)