Epson TM-U590, Dot matrix, POS printer, 16.7 cpi, Wired, RS-232, RS-485, Parallel, RS-232, RS-485 Epson TM-U590. Print technology: Dot matrix, Type: POS printer, Character density: 16.7 cpi. Connectivity technology: Wired, Serial interface type: RS-232, RS-485, Standard interfaces: Parallel, RS-232, RS-485. Sound pressure level (printing): 65 dB, Mean time between failures (MTBF): 180000 h, Ribbon life: 4.5 million characters. Product colour: White. Power source type: USB