For great quality colour and text from your Samsung CLP- or CLX- series laser printer, install a genuine Samsung Yellow High Yield Toner Cartridge. When one of the toner cartridges is running out, you'll see the message Prepare Toner with an arrow on the display corresponding to the low colour. Order a new cartridge and replace it as soon as you see the message Replace Toner. This high capacity cartridge contains extra toner for a page yield of up to 4,000 pages.