Product specifications Functions Print Power Input voltage: 100 to 240 VAC (+/- 10%) 50/60 Hz (+/- 3 Hz) Power consumption 28 watts maximum 0.27 watts (Manual-Off) 3.9 watts (Standby) 1.3 watts (Sleep) Power measurements are based on ENERGY STAR® OM test procedure with 230 VAC 50 Hz input. Energy efficiency ENERGY STAR® qualified Operating temperature range 41 to 104ºF Operating humidity range 20 to 75% RH (non-condensing) Dimensions 19.45 x 18.03 x 7.95 in Dimensions (Maximum) 19.45 x 25.43 x 11.18 in (with 2nd tray and trays opened and extended) Weight 24.2 lb Package weight 30.54 lb What's in the box HP Officejet Pro 8100 ePrinter - N811a; HP 950 black ink print cartridge HP 951 cyan ink print cartridge HP 951 magenta ink print cartridge HP 951 yellow ink print cartridge; Shopping card; Power cord; CD-ROM; Duplexer USB cable; Set up poster; Getting started guide Cable included Yes 1 USB Warranty One-year limited hardware warranty 24-hour 7 days a week Web support