Valuetoner Remanufactured Ink Cartridge Replacement for HP 564XL 564 XL CN684WN for Officejet 4620, Photosmart 7510 5520 5515 5510 B8550, Premium C410 C309A, Deskjet 3520 3522 (Black, 2 Pack) Warranty: 24 months limited Warranty & 100% Quality Satisfaction Guarantee. If you encounter any issue, please contact seller via "ask product question" within the order section for immediate support. Contents: 2 Pack of Remanufactured Ink cartridges Replacement for HP 564 564XL (2 Black) Color: Black Page Yield: Up to 800 pages per black cartridge at 5% coverage (ONLY $0.02/page, Save up to 80% compared to OEM ink cartridge) Printer Compatibility: HP Officejet 4610 4620 4622, Photosmart 7520 6520 5510 5520 5511 5512 5514 5515 5522 5524 5525 6510 6512 6515 6525 7510 7515 7525 B8500 B8550 B8553 B8558 C3640 C5300 C5324 C5370 C5373 C5380 C5383 C5388 C5390 C5393 C6300 C6324 C6340 C6350 C6375 C6380 C6383 C6388 D5400 D5445 D5460 D5463 D5468 D7500 D7560 C309 C310a C310 C410 C510 B209 B210, Deskjet 3070a 3520 3521 3522 3525 3526 Printer 800 pagesyield per black Ink cartridge at 5% coverage (Letter/A4) Officejet 4620 4622 Printer DeskJet 3520 3521 3522 3525 3526 Printer Photosmart Premium C309A C410A C310A C510 B209 B210 Series Printer Photosmart 5510 5511 5512 5514 5515 5520 5522 5524 5525 6510 6512 6515 6520 6525 7510 7515 7520 7525 Printer Photosmart BB550 B8553 B8558 B8500 B8550 C3640 C6350 C6380 C5300 C5324 C5370 C5373 C5380 C5383 C5388 C5390 C5393 C6300 C6324 C6340 C6375 C6383 C6388 D5400 D5463 D5468 D7500 D7560 D5445 D5460 D7560 Printer