HP Officejet 4500 All-in-One Printer HP, Officejet , Copy, Fax, Print, Scan, Up to 28 ppm, Up to 22 ppm, Up to 3000 pages, Thermal Inkjet, Up to 600 x 600 dpi, 4800 x 1200 dpi, Paper envelopes, Paper transparencies, Photo Stickers, Plain Paper, Up to 100 sheets, Up to 20 sheets, not supported, Colour, 64 MB, Flatbed - ADF, Up to 1200 dpi, 48-bit, Up to 22 cpm (Colour), Up to 28 cpm (Black) , Up to 1200 x 1200 dpi (Colour) , Up to 1200x600 dpi (black), Up to 90, 3 sec per page, Up to 300 x 300 dpi, 10/100Base-T, USB 2.0, Windows 7, Windows Vista, Windows XP, 17 watts maximum, 6.9 Kg