Canon imageFORMULA DR-F120 Desktop Type Flatbed with ADF (50 sheets) Scanning sensor unit : CMOS CIS 1 Line Sensor Optical resolution: 600dpi/1200dpi Light source: RGB LED Scanning side: Front / Back / Duplex Interface: High speed USB 2.0 Scanning Specifications: Black and White (A4, 200dpi): ADF 20ppm / 36ipm Colour (A4, 200dpi): ADF 10ppm / 18ipm Output resolution: 150 x 150dpi, 200 x 200dpi, 240 x 240dpi, 300 x 300dpi, 400 x 400dpi, 600 x 600dpi, 1200 x 1200dpi, 2400 x 2400dpi Suggested Daily Duty Cycle: Approx 1000 scans/day