The 4 Pack of Ricoh Compatible Toner Cartridge by Katun is designed for use with Ricoh models such as MP C4503, C4504, and C6003. This black toner cartridge is compatible with the Ricoh 841849 model and is manufactured in Japan. With a print technology of laser, this unit is a reliable and high-quality choice for producing professional-quality prints. Each pack includes 4 units of compatible toner cartridges to ensure you have a steady supply for your printing needs.