Maintain high quality colour prints from your Kyocera FS-C5100DN laser printer by installing this genuine Kyocera TK-540Y Yellow Laser Toner Kit (1T02HLAEU0). You should order a new toner kit as soon as you see the Toner Low message on your printer's display. When you see Replace Toner Y, having a fresh toner cartridge on hand will let you restart printing with the minimum of delay. This standard yield cartridge is packed with enough colour toner to print 4,000 pages.