The fi-7140 automatically detect the document size when scanning a mixed size batch. The fi-7140 is a compact model that can be placed on the desk, whether for over-the-counter service or for operations in office. It scans at a speed of 40 ppm (A4, color, 200/300 dpi). Simply press the scan button and it will start scanning within a second. Carrier Sheets allow you to scan documents, photos or clippings larger than A4 size. The PaperSteam IP scanner driver, which supports TWAIN/ISIS, saves the inconvenience of fine adjusting the settings for the OCR process