Epson C31C515653, 16 cpi, 4 KB, VCCI A, FCC A, CE, AS/NZS 3548 B, UL, CSA, TÜV (EN60950), WEEE, RoHS, RS-232 Epson C31C515653. Character density: 16 cpi. Buffer size: 4 KB, Electromagnetic compatibility: VCCI A, FCC A, CE, AS/NZS 3548 B, Safety: UL, CSA, TÜV (EN60950). Standard interfaces: RS-232. Ribbon life: 1.5 million characters, Mean time between failures (MTBF): 180000 h. Weight: 5.51 lbs (2.5 kg)