High-yield toner cartridge is designed for use with Ricoh SP3600DN, SP3600SF, SP3610SF, SP4510DN, SP4510SF; Savin SP3600DN, SP3600SF, SP3610SF, SP4510DN, SP4510SF; Lanier SP3600DN, SP3600SF, SP3610SF, SP4510DN and SP4510SF. Toner delivers excellent print quality and sharp images and text. Use genuine Ricoh toner to ensure the best performance for your machine. Dependable cartridge is easy to install. It yields approximately 6,000 pages.