The Oki 09004391 Genuine Print Cartridge is specifically designed for use with OKI printers, including the B2500/B2520 MFP and B2540 models. This black toner cartridge is compatible with the mentioned printer models and offers high-quality printing results. Ideal for home or office use, this genuine OKI product ensures reliable and consistent performance with each print. Trust in the OKI brand for top-notch printing supplies that deliver professional-quality results every time.