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 GT-20000N Pro, 215.9 x 355.6 mm, 48 bit, 4.3 sec/page, Flatbed & ADF scanner, CCD, 100 sheets Epson GT-20000N Pro. Maximum scan size: 215.9 x 355.6 mm, Input colour depth: 48 bit, Flatbed scan speed (b/w, A4): 4.3 sec/page. Scanner type: Flatbed & ADF scanner. Sensor type: CCD. Auto document feeder (ADF) input capacity: 100 sheets. Maximum ISO A-series paper size: A3, ISO A-series sizes (A0...A9): A3, A4, A5, ISO B-series sizes (B0...B9): B4, B5 http://www.toptenreviews.com/computers/articles/best-large-format-scanner-review/epson-gt-20000-review.html/ The Epson GT-20000 is an excellent large format scanner with competitive product features. Its price is high relative to other brands in the wide format scanner product category. Technical support is restricted to email, and free technical support ends... he Epson GT20000 is a large format flatbed scanner with an optional automatic document feeder, Free technical support is restricted to email communication for one year. The Epson GT-20000 is excellent, but not the best value for the price....