This genuine Kyocera Black Laser Toner Kit (TK400) contains everything you need to replace the toner cartridge in your Kyocera FS-6020 laser printer and ensures prolonged, high quality operation. Order a new toner kit when you see a Toner Low message on your printer's display. When you see Replace Toner and hear an alarm buzzer, it's time to swap out the old cartridge for its replacement. This standard yield cartridge is packed with enough black toner to print 10,000 pages.