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 LX-350, 357 cps, 240 x 144 DPI, 312 cps, 78 cps, 10,12,15 cpi, 4,23 mm Epson LX-350. Maximum print speed: 357 cps, Maximum resolution: 240 x 144 DPI, Maximum print speed (draft): 312 cps. Maximum print size: 210 x 297 mm, Paper feed: Manual, Paper tray media types: Envelopes, Labels, Plain paper, Roll. Product colour: Black, Buffer size: 128 KB, Sound pressure level (printing): 53 dB. Standard interfaces: Parallel, USB 2.0. Print head: 9-pin, Print direction: Bidirectional, Print head life: 400 million characters