Overview HP 18 Inkjet Print Cartridge, black Features New HP 18 ink—crisp, black text every time, at fast speeds with HP Vivera Ink. HP inkjet printing for the office—reliability, quality, value Easy to use, easy to manage HP supplies save time so you can be more productive. Specifications Color(s) of printing supplies Black Ink drop 9 Pl Ink types Pigment-based Page yield (black and white) ~850 pages Page yield footnote Tested in HP Officejet Pro K550 Color Printer. Approximate average based on ISO/IEC 24711 or HP testing methodology and continuous printing. Actual yield varies considerably based on content of printed pages and other factors. For details see http://www.hp.com/go/learnaboutsupplies. Operating requirements Operating temperature range 15 to 35° C Storage temperature range 15 to 35° C Storage humidity 20 to 80% RH Dimensions and weight Package dimensions (W x D x H) 118 x 25 x 145 mm Package weight 0.08 kg What's included Warranty 6 Months Limited Warranty (Return to HP/Dealer) What's in the box Ink cartridge