General description A genuine OKI Black Toner Cartridge (44992401) ensures high-quality print output and great reliability when installed in your OKI laser printer. This standard yield toner cartridge is packed with enough black toner to print 1,500 pages and is designed for B401, MB441, and MB451 printers. Technical specifications Model: OKI Black Toner Cartridge (44992401) Page yield: 1,500 pages Usage Order a replacement cartridge when you see a Toner Low message on your printer's display. Install the cartridge when Toner Empty is displayed on the screen to continue printing immediately.