INK4WORK 2 Pack Replacement Toner Cartridge for HP CB540A (125A) Black Laserjet CP1215, CP1515N, CP1518ni, CM1312 2 Pack CB540A (125A) Black Toner Cartridge For Hp Color Laserjet CP1215, CP1515N, CP1518ni, CM1312 ISO9001 certified. Sold by ink4work 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.