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 Sharp DX-C311, Laser, Color printing, 1200 x 1200 DPI, Color copying, Color scanning, A4 Sharp DX-C311. Print technology: Laser, Printing: Color printing, Maximum resolution: 1200 x 1200 DPI, Print speed (color, normal quality, A4/US Letter): 31 ppm. Copying: Color copying, Maximum copy resolution: 1200 x 1200 DPI. Scanning: Color scanning, Optical scanning resolution: 600 x 600 DPI. Faxing: Color faxing. Maximum ISO A-series paper size: A4