By installing a genuine OKI Black Toner Cartridge (43865724) in your OKI C5850 laser printer, you can enjoy high quality prints with vivid colour, crisp text, and reliable operation. If you notice faded print or a Toner Low message on your printer's display, order a replacement cartridge as soon as possible. When you see a Toner Empty message, replace the old cartridge and resume printing with the minimum of delay. This standard yield toner cartridge is packed with enough black toner to print 8,000 pages.