Install a genuine Lexmark Black High Yield Laser Toner Cartridge (12A7644) for high quality, reliable output from your Lexmark laser printer. Keep a spare cartridge on hand for when your printer displays the error code 88 Toner Low. You can easily and quickly install a new cartridge to continue your printing at a moment's notice. This high capacity cartridge is packed with extra toner, letting you print up to 30,000 pages before replacement.