Remanufactured Ink Cartridge Replacement for HP 61XL 61 XL Twin Black Pack (2pcs Black) - INK LEVEL DETECTED CH561WN CH563WN High Capacity Compatible Printers: DeskJet : 1010 / 1051 / 1055 / 1056 / 1510 / 1512 / 2510 / 2512 / 2514 / 2540 / 2541 / 2542 / 2543 / 2544 / 3000 / 3050A / 3051A / 3052A / 3054 / 3056A / 3510 / 3511 / 3512 / 3516 ENVY : 4500 e-All-in-One / 4501 e-All-in-One / 4502 e-All-in-One / 4504 e-All-in-One / 5530 e-All-in-One / 5531 e-All-in-One / 5535 e-All-in-One OfficeJet : 2620 / 4630 / 4632 / 4635 / 8040 / 8045 Deskjet : 1050 / 2050 / 30 CARTRIDGES THAT WORK! Our cartridges are thoroughly screened and tested from collection to the refill process and once again before final packaging to ensure you get a cartridge that prints the first time and doesnt give up on you. Furthermore, from the moment you put them in, our cartridges accurately report their ink level to your printer from the first to the last drop. NO GENERIC INK! The ink in our cartridges has been specifically formulated for use in HP 61XL cartridges. Other brands may use generic ink that does not meet the standards of your HP printer. The Ink in our cartridges is engineered to deliver a perfect print and to seamlessly replace genuine HP cartridges without clogging your printheads or leaking in your printer. GET WHAT YOU PAID FOR! Our cartridges are engineered to deliver a page yield identical to the original HP brand cartridges: Up to 500 pages with the 61XL Black (ISO/IEC 24711). A TRUE PREMIUM REMANUFACTURED REPLACEMENT! There are a lot of junk cartridges out there offered by sellers that know nothing about printer cartridges. We have been selling aftermarket ink cartridges online for 15 years, so when we bring a cartridge to market, you can be confident it is the highest quality cartridge available.