Epson TM-U220B (057): Serial, PS, NE sensor, EDG, 0.06/0.085 µm, Wired, 180000 h, China, 3 million characters, UL, CSA, TÜV (EN60950) Epson TM-U220B (057): Serial, PS, NE sensor, EDG. Printing media thickness: 0.06/0.085 µm. Connectivity technology: Wired. Mean time between failures (MTBF): 180000 h, Country of origin: China, Ribbon life: 3 million characters. Compatible operating systems: Windows 2000, XP, Vista. Width: 160 mm, Depth: 248 mm, Height: 139 mm