This is a compatible Ricoh 888637 toner cartridge guaranteed to perform with Ricoh Laser Printers. It replaces the genuine (OEM) Ricoh 888637 toner cartridge. This toner cartridge is made with top quality components and new toner to give you the highest quality printouts every time. This compatible for Ricoh 888637 toner cartridge is specially engineered to meet or exceed the highest standards of quality, reliability and page yields. Although this cartridge is not made or endorsed by Ricoh, it offers customers an economical alternative to expensive OEM Ricoh 888637 cartridges and comes with our satisfaction guarantee.