Rainbow Pack of Toner Refills for Samsung CLP-680ND CLX-6260 CLT-K506L CLT-C506S
You must unscrew the end panel to access the toner filler cap and chip beneath. Sized for one refill. The 190 gram Black has 6,000 sheet Yield and the 120 gram colours have 3,500 sheet Yield at 5% nominal coverage.