FAX Lexmark MX431adn , Print Technology :Monochrome Laser ;Function :Copying,Color Scanning,Printing,Network Scanning,Faxing; Display :2.8 inch (7.2 cm) LCD touch panel; Media Sizes Supported: A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, Statement, Executive, Universal, DL Envelope, Folio, 10 Envelope; Included Paper Handling: 100-Sheet Multipurpose Feeder, Integrated Duplex, 150-Sheet Output Bin, 250-Sheet Input; Standard Ports: Gigabit Ethernet (10/100/1000), USB Compatible with USB 2.0 Specification (Type B); Copy Speed Up to:Black: 42 cpm1 (Letter); Copy Speed Duplex Up to:Black: 18 spm1 (Letter);Time to First Copy As fast as: Black: 5.9 seconds;Faxing Modem Speed ITU T.30, V.34 Half-Duplex, 33.6 Kbps Fax Transmission Speed < 3 seconds per page; handset: yes; Printing Print Speed Up to: Black: 40 ppm1 A4 Print ResolutionBlack: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi;Duplex 2-sided:Integrated Duplex; Scanning Scanner Type / ADF Scan Flatbed scanner with ADF DADF (single pass Duplex),ADF 50-Sheet Automatic Document Feeder Paper Input Capacity Standard: 350 pages 20 lb or 75 gsm bond Maximum: 900 pages 20 lb or 75 gsm bond; Maximum Monthly Duty Cycle Up to: 80000 pages per month Laser Cartridge Yieldsup to: 20,000-page Black Extra High Yield Cartridge Hardware ISO IEC 19752;Processor Speed Dual Core, 1.0 GHz Memory Standard: 512 MB; Printer Languages Standard: PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, PostScript 3 Emulation, PDF 1.7