The Genuine Toshiba TFC45K Black Toner Cartridge is specifically designed for use with Toshiba printers, including the Multi Function e-Studio 4500C and 5500C models. With an estimated yield of 30,000 pages at 5% coverage, this original Toshiba product guarantees high-quality printing results. This black toner cartridge is brand new and sealed, ensuring the utmost in performance and reliability. Produced in the United States, this genuine Toshiba product is the perfect choice for consistent and professional printing needs.