iDocScan S20 High Performance Duplex Document Scanner. The iDocScan S20 includes a robust 60-page automatic document feeder and the enhancement features like blank page removal and image deskew, which ensure reliability and productivity in mid-volume simplex scanning up to 20ppm. Additional flatbed can scan delicate or bound materials up to 1200 dpi optical resolution. Fast and reliable scanning up to 20 ppm. 60-page Automatic Document Feeder. Optical Resolution: 1200dpi (Flatbed) and 600dpi (ADF). Easy one-touch scanning to standard image or PDF file format. 9.5" (24cm) wide paper tray permits continuous paper feeding. Advanced image processing, image correction, and error detection. Certified TWAIN and WIA drivers. Auto power off design for energy saving.