CIAJIE Waterproof Black Ink Remanufactured HP 61XL Ink Cartridge With ink Level work for HP Deskjet 1000/2540/3000/3050/Envy 4500/Officejet 4630 Series (3*Black 1*Color) These CIAJIE remanufactured ink cartridges contain high quality waterproof black ink that has been formulated for optimum performance.All cartridges to OEM capacity,Two tests before factory that ensure quality and compatibility. Remanufactured ink cartridges contain high quality ink that has been formulated for optimum performance. All cartridges have been tested to ensure a hassle free printing experience. Compatible Printers: HP Deskjet 1000 Printer series - J110, 1050 All-in-One series - J410, 2050 All-in-One series - J510, 3000 Printer series - J310, 3050 All-in-One series - J610, Officejet Series 2620, 2621, 4620, 4630. ENVY Series:535 5532 5534 5531 5539 5530 4500 4502 4505 Updated Clip:100% show accurate ink levels. ISO-9001 and MSDS Certified Approved,18 month Limited Warranty And 100% Satisfaction guarantee