Ink4work 5 Pack CB540A, CB541A, CB542A, CB543A Remanufactured HP 125A Black Toner Cartridge for Hp Color Laserjet CP1215, CP1515N, CP1518ni, CM1312 Approximate cartridge yield: Black up to 2,200 standard pages, Color up to 1,400 Standard pages (5% coverage of lettle size paper)(average continuous black, declared yield value in accordance with ISO/IEC 19798, actual yields vary considerably based on images printed, other factors. ISO9001 certified. Sold by ink4work