Enjoy great quality prints and reliable operation for longer before cartridge replacement by installing a genuine OKI Black High Yield Toner Cartridge (01279101) in your OKI B710/B720/B730 laser printer. When you see a Toner Low message on your printer's LCD display, you can print around 100 more pages before the cartridge is exhausted. Make sure to order a new cartridge and replace it as soon as possible. This high capacity cartridge contains extra toner for a yield of up to 20,000 pages.