This high-yield toner cartridge is compatible with Ri.coh SP 4510DN/SF, Aficio SP 4510DN/SF/4520DN, Aficio MP 401SPF and Lanier SP 4510DN/SF/4520DN printers. It replaces the original Ri.coh 407318 cartridge and delivers sharp, professional quality prints page after page. Using advanced toner formulation for consistent print density, every document looks clear and crisp. The cartridge is rigorously tested to meet or exceed the performance of the original for reliable printing of documents, reports and graphics. It is manufactured to the highest standards for long lifespan and trouble-free use. Suitable for low to heavy usage printing environments, this compatible cartridge reduces cost per page without compromising on quality or reliability.