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 EcoTank ET-4550, Inkjet, Colour printing, 4800 x 1200 DPI, Colour copying, A4, Black Epson EcoTank ET-4550. Print technology: Inkjet, Printing: Colour printing, Maximum resolution: 4800 x 1200 DPI, Print speed (colour, normal quality, A4/US Letter): 20 ppm. Copying: Colour copying. Scanning: Colour scanning, Optical scanning resolution: 1200 x 2400 DPI. Faxing: Colour faxing. Maximum ISO A-series paper size: A4. Wi-Fi. Product colour: Black