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 Canon i-SENSYS MF4140, Laser, 600 x 1200 DPI, Mono copying, Color scanning, Mono faxing, A4 Canon i-SENSYS MF4140. Print technology: Laser, Maximum resolution: 600 x 1200 DPI. Copying: Mono copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Color scanning, Optical scanning resolution: 600 x 1200 DPI. Faxing: Mono faxing. Maximum ISO A-series paper size: A4