Print Speed: up to 28ppm in A4 Resolution: 1200x1200 dpi Paper size: A4, A5, A6, Letter, Legal, Executive, Folio, Oficio, ISO B5, JIS B5, Envelope (Monarch, No.10, DL, C5, C6), Postcard, Custom Minimum Operating System: Windows 2000/XP/Vista/7/2003 Server/2008 Server, Mac OS X 10.4-10.6, Various Linux OS Connection: High-Speed USB 2.0, Ethernet 10/100 Base TX, Wireless 802.11 b/g/n Memory: 64MB Network ready: Ethernet 10/100 Base TX, Wireless 802.11 b/g/n 1 year warranty Dimensions (WxDxH): 348 x 338 x 197 mm Weight: 7.2 kg Duplex printing built-in Eco Button Input paper tray capacity: 250-sheet Cassette, 1-sheet Manual Tray Output paper tray capacity: 150-sheet Face Down, 1-sheet Face Up Processor: 533 MHz Noise level: Less than 50 dBA (Printing), less than 30 dBA (Standby) Duty Cycle (Monthly): up to 12,000 pages Supplied with Starter toner cartridge (1000pp)