Everyday Toner Cartridges from Xerox deliver brilliant image quality and excellent reliability at a low cost. Compared to the original toner cartridge, you will get better or equal page yield, pay around 25% less, and receive a 100% lifetime warranty. Xerox Everyday Replacement Toner High Yield Black For Samsung CLT-K506L for Samsung CLP-680nd/CLP-680dw, CLX-6260nd/CLX-6260fr/CLX-6260fw/CLX-6260fd 006R04312.