ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Epson C831, Inkjet, 5760 x 1440 DPI, 92 mm/sec, Color, Wired, Grey Epson C831. Print technology: Inkjet, Maximum resolution: 5760 x 1440 DPI, Print speed: 92 mm/sec, Color. Connectivity technology: Wired, Ethernet LAN, USB port. Product color: Grey