Printing Speed (Mono/Color) • X7600 series - Up to 60 / 60 ppm in A4/Letter (Up to 31 ppm in A3) • X7500 series - Up to 50 / 50 ppm in A4/Letter (Up to 26 ppm in A3) • X7400 series - Up to 40 / 40 ppm in A4/Letter (Up to 21 ppm in A3) Processor • Quad Core 1.5GHz Memory • 6GB (2GB for Android OS) Document Feeder • DSDF (Dual Scan Document Feeder) - DSDF-H Model : X7600GX / X7500GX / X7400GX - DSDF-L Model : X7600LX / X7500LX / X7400LX LCD • 10.1 inch Touch Color LCD