ESTON 4 Pack Black Ink Cartridge for 564XL 564 XL OfficeJet 4620 4622 Printer ESTON store 4 Pack Black Ink (Not photo black) Page Yield : approx 800 pages for per cartridges at 5% coverage Shelf Life : 24 months, Refill ink with Anti-clogging formulation and come with vivid color printing result .High quality chip and easy to install Compatible printer : Photosmart 5510 5511 5512 5514 5515 5520 5522 5525 6510 6512 6515 6520 6525 7510 7515 7520 7525 C3640 C6350 C6380 D5400 D5445 D5460 D5468 D7500 D7560 B8500 B8550 B8553 B8558 Photosmart Premium C309 C310 C410 C510 B209 B210 series Officejet 4620 Deskjet 3520 3521 3522 3526 Guarantee :1 -year limited warranty , Quality after-sales service to ensure 100% satisfied.If you have any question, please feel free to contact us