E-Z Ink (TM) Remanufactured Ink Cartridge Replacement For 126 (1 Black, 1 Cyan, 1 Magenta, 1 Yellow) 4 Pack Brand: E-Z ink Page Yield: Black is 740 pages per cartridge. Color is 480 pages per cartridge All cartridges remanufactured using ISO 9001 Certified Process Cartridges have undergone an extensive process which includes: cleaning of all dry/excess ink, re-filling cartridge to OEM capacity, and testing to ensure quality and compatibility. All products covered by a 100% satisfaction guarantee Works With Stylus NX330, Stylus NX430, Workforce 60, Workforce 435, Workforce 520, Workforce 545, Workforce 630, Workforce 633, Workforce 635, Workforce 645, Workforce 840, Workforce 845, Workforce WF-3520, Workforce WF-3530, Workforce WF-3540, Workforce WF-7010, Workforce WF-7510, Workforce WF-7520 Printer