Canon i-SENSYS MF657CDW Wireless & Duples 4-in-1 (Print, Copy, Scan, Fax) Multifunction Colour Printer: General SpecificationsMachine TypeColour Laser All-In-OneAvailable FunctionsPrint, Copy, Scan and FaxPrint SpecificationsPrint SpeedSingle sided: Up to 21 ppm (A4)Up to 38 ppm(A5-Landscape)Double sided: Up to 12.7 ipm (A4)Printing MethodColour laser beam printingPrint ResolutionUp to 1200 x 1200 dpi