Ink4work 4 Pack B/C/M/Y Toner For Okidata C310dn C330dn C352 C362 CC510dn C530dn MC351dn MC361dn MC561 This is remanufactured toner crtridge. Not made by OKIDATA Sold by ink4work Only. Approximate cartridge yield: Black up to 3,500 standard pages, Color Toner Cartridge up to 2,000 pages (average continuous black, declared yield value in accordance with ISO/IEC 19798, actual yields vary considerably based on images printed, other factors.