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 The Blue Angel is the ecolabel of the federal government of Germany since 1978. The Blue Angel sets high standards for environmentally friendly product design and has proven itself over the past 40 years as a reliable guide for a more sustainable consumption. Blue Angel Brother HL-L2372DN, Laser, 1200 x 1200 DPI, A4, 34 ppm, Duplex printing, Network ready Brother HL-L2372DN. Print technology: Laser. Number of print cartridges: 1, Maximum duty cycle: 15000 pages per month. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 34 ppm, Duplex printing. Display: LCD. Network ready. Product colour: Black