Original HP inkThe HP 305 XL Black Ink Cartridge produces reliable, professional-quality documents. It delivers consistent results that dry fast and resist water, yielding roughly 240 pages.HP Instant InkSave up to 70% on ink with HP's Instant Ink service. When your printer is running low, it automatically orders more ink cartridges, so you don't have to order them yourself.The service works on how many pages you print, not how much ink you use. You can choose from a range of monthly page plans, and unused pages roll over to the next month. The price includes ink, shipping and cartridge recycling.Compatible printers:- HP DeskJet 2710- HP DeskJet 2720- HP DeskJet 2721- HP DeskJet 2722- HP DeskJet 2723- HP DeskJet 2724- HP DeskJet Plus 4110- HP DeskJet Plus 4120- HP DeskJet Plus 4122- HP DeskJet Plus 4130- HP ENVY 6010- HP ENVY 6020- HP ENVY 6022- HP ENVY 6030- HP ENVY 6032- HP ENVY Pro 6420- HP ENVY Pro 6422- HP ENVY Pro 6430- HP ENVY Pro 6432