Memory 256 MB Display2-line LCD (text)Operating SystemWindows OS compatible with In-Box Driver; Windows XP SP3 all 32-bit editions (XP Home, XP Pro, etc.), Windows Vista all 32-bit editions (Home Basic, Premium, Professional, etc.), Windows 7 all 32- & 64-bit editions, Windows 8/8.1 all 32- & 64-bit editions (excluding RT OS for Tablets),Windows 10 all 32- & 64-bit editions (excluding RT OS for Tablets);Windows OS compatible with Universal Print Driver (From HP.com); Windows XP SP3 32- & 64-bit editions (XP Home, XP Pro, etc.),Windows Vista all 32- & 64-bit editions (Home Basic, Premium, Professional, etc.),Windows 7 all 32- & 64-bit editions, Windows 8/8.1 all 32- & 64-bit editions (excluding RT OS for Tablets), Windows 10 all 32- & 64-bit editions (excluding RT OS for Tablets) ;Mac OS (HP Print Drivers available from HP.com and Apple Store); OS X 10.9 Mavericks, OS X 10.10 Yosemite, OS X 10.11 El Capitan; Mobile OS (In-OS drivers); iOS, Android, Windows 8/8.1/10 RT; Linux OS (In-OS HPLIP; SUSE Linux (12.2, 12.3, 13.1), Fedora (17, 18, 19, 20), Linux Mint (13, 14, 15, 16, 17), Boss (3.0, 5.0), Ubuntu (10.04, 11.10, 12.04, 12.10, 13.04, 13.10, 14.04, 14.10), Debian (6.0.x, 7.x); Other OS; UNIXDimensions497 x 398 x 466 mmWeight18 kgConnectivityHi-Speed USB 2.0 Host/Device PortsFast Ethernet 10 Base-T/100 Base-TX, Gigabit Ethernet 1000 Base-TDuty CycleUp to 100,000 pagesPrint SpeedUp to 43 ppmPrint Resolution600 x 600 dpi, up to 4800 x 600 enhanced dpiProcessor Speed1500 MHzPaper Handling Input 100-sheet multipurpose tray and 550-sheet main cassette Paper Handling Output250-sheet face down output trayMedia Sizes Tray 1: 10 x 15 cm, A4, A5, A6, Envelope B5, Envelope C5, Custom, Envelope DL, B5 (JIS), B6 (JIS)Tray 2, Tray 3: A4, A5, A6, Custom, B5 (JIS), B6 (JIS)Media TypesPaper (plain, light, midweight, intermediate, heavy, extra heavy, bond, cardstock, coloured, letterhead, preprinted, prepunched, recycled, rough, ecofficient); Envelopes; Labels; TransparenciesPower Consumption660 watts (active printing), 6.1 watts (ready), 1.3 (sleep), 0.7 watts (auto-off/wake on USB connection, disabled at shipment), 0.1 watts (auto-off/manual-on), 0.1 watts (manual-off)Power SupplyInput voltage: 200 to 240 VAC, 50 Hz (Not dual voltage, power supply varies by part number with #option code identifier)ConsumableHP 87A Black Original LaserJet Toner Cartridge (9,000 yield) CF287A, HP 87X Black Original LaserJet Toner Cartridge (18,000 yield) CF287X Duplex Print Automatic