The RICOH / Fujitsu 413460 Black Toner Cartridge is designed for use in specific RICOH fax machines and multifunction devices. It is compatible with the RICOH FAX 1180L, F111, LF225M, SP1000SF, and SF3815 models. With an average yield of 4,000 pages at 5% coverage, this cartridge helps maintain operational continuity for offices with moderate printing volumes.