The black Samsung CLT-K504S toner cartridge is best suited for high-resolution printing, offering high-page yields on top of excellent quality, especially when printing black text. Each Samsung CLT-K504S/ELS cartridge is filled with well blended Samsung CLTK504S black toner, which produces rich black tones for bold prints. Even in busy print environments, the original Samsung K504S black toner cartridge is guaranteed to perform well, especially when used with the right equipment. It ultimately helps your machine achieve the highest level of performance, keep noise down, and boost productivity. The genuine Samsung CLT-K504 black toner promises high-resolution prints with great detail and as an added bonus, printed text and graphics using the CLT-K504S toner cartridge last longer, thanks to the toner's smudge and fade resistance.