The Xerox Docu Mate 3125 is an A4 desktop document scanner with speeds of 25 ppm & 44 ipm (images per minute, duplex) in black & white, grayscale & color at 200 or 300 dpi. Durability tests support a daily duty cycle of 3, 000 pages. The scanner uses a CIS (Contact Image Sensor) & an LED light source for efficient power consumption. The unit offers a 50-sheet document feeder for document widths up to 8.5". Long capability is supported up 38". The Docu Mate 3125 has ultrasonic double feed detection so that stapled or other misfed documents can be sensed before they are crumpled, destroyed or cause a jam. The Docu Mate 3125 scanner allows users to scan to the "destination" of their choice by pressing a single button, eliminating the multiple steps usually required to save scanned documents in popular file formats. Simply select one of 9 preset (yet completely user configurable) & your documents will be scanned with the correct settings for resolution, color, cropping, & file format.