Optical Resolution   600 dpi Scanning Speed   AC adapter 9 ppm / 18 ipm (300 dpi, grayscale, A4) 6 ppm / 6 ipm (300 dpi, color, A4) USB bus power 4 ppm / 8 ipm (300 dpi, grayscale, A4) 4 ppm / 4 ipm (300 dpi, color, A4) ADF Capacity   20 Sheets (A4 / Letter, 70g/ m2 or 18 lb) Acceptable Paper weight (Thickness)   50 to 105 g/m2 (or 14 to 28 lb.) Plastic card thickness   up to approx. 0.76 mm (ISO standard / JIS standard ) Embossed cards can be scanned. Scanning Area   Maximum: 216 x 356 mm (8.5" x 14" ) Minimum: 50.8 x 50.8 mm (2" x 2") Document size   Business card, Letter, Legal, A4, A5, A6, B5, B6 Light source   RGB LED Action Button   PDF, BCR, Scan Scan Modes   Color : Input 48-bit; Output 24-bit Grayscale : Input 16-bit; Output 8-bit Black & White: 1-bit Acceptable Paper Sizes (W x L)   Maximum: 216 x 360 mm (8.5" x 14.17") Minimum: 50.8 x 50.8 mm (2" x 2") Net Weight   1300 g (2.87 lb) Dimensions (D x W x H)   98 x 288.5 x 75 mm (3.8”x 11.36”x 2.96”.) Interface   USB 2.0 Power requirement   AC adapter : AC 100V to 240 V, 50 / 60 Hz; DC 15V / 1A USB bus power: 5V / 1A (0.5 A x 2 ports)     System requirements   IBM Compatible PC, with Pentium III 1G or faster CPU,     CD-ROM Driver, Two available USB Ports,     256 MB RAM (512 MB or higher recommended),     800 MB free HDD space (1 GB or larger recommended),     High Color graphic card (VGA or higher)