Install a genuine OKI Black Toner Cartridge (44643004) in your OKI C801 or C821 laser printer and enjoy unparalleled quality and reliability. You'll notice faded print or a Toner Low message on your printer when the current cartridge is running low. To resume printing quickly, make sure you order a new toner cartridge and install it when you see the Toner Empty message. This standard yield toner cartridge is packed with enough black toner to print 7,000 pages.