Perfection V850 Pro Scanner, 12800 X 12800 Dpi Image Sensor: CCD Light Source: ReadyScan LED technology Scanning Speed: High-speed mode: 4800 dpi Full color: 10.8 msec / line (approx.) Monochrome: 10.8 msec / line(approx.) Resolutions, Optical: Epson Dual Lens System 4800 dpi and 6400 dpi Resolutions, Hardware: Hardware Resolution: 4800 x 9600 dpi 6400 x 9600 dpi with Micro Step Drive technology Maximum Resolution: 12,800 x 12,800 dpi Color Depth: Color Bit Depth: 48-bits per pixel internal / external Grayscale Bit Depth: 16-bits per pixel internal / external Max. Document Size: Photo 4 x 6 8 x 10 4 x 5 2.36 x 7.87 8.50 x 11.70 5.90 x 9.74 Power Consumption: Operation: 23 W Standby Mode: 12 W Sleep Mode: