The Okidata B731 / # 45439001 Black Toner Cartridge is a high-yield cartridge designed for use in OKI printers. Specifically compatible with the OKI B731dn model, this toner cartridge is capable of delivering crisp and professional black prints with a page yield of up to 36,000 pages. With its laser print technology, this BRANDNEW cartridge ensures high-quality results for a variety of printing needs. Ideal for office and professional settings, the Okidata B731 toner cartridge is a reliable and efficient choice for producing excellent black prints.