AD250 A Fast, Reliable, and Affordable Scanner Built-in with the cutting-edge image processing engine, the Avision AD250 breaks new ground in scanning performance by offering a blazing duplex scanning speed of up to 160 images per minute in Color, Grayscale, and Monochrome. Combining paper protection and reverse roller technologies, the AD250 balances high performance with exceptional feeding reliability across a wide variety of scanning situations.