This is a compatible Ricoh 888637 (884963) yellow laser toner cartridge guaranteed to perform with your Ricoh laser printer. It replaces the original Ricoh 884963 laser toner cartridge. The compatible replacement 888637 laser toner cartridges and supplies (also known as generic) are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for the 888637 (884963) Ricoh laser cartridge and offer high-quality printing results. Manufactured brand new, containing 100% new components, they are an economical alternative to expensive OEM 888637 (884963) Ricoh laser toner cartridges and supplies, and offer big savings over brand-name 888637 (884963) laser toner cartridges and supplies. The use of compatible replacement laser toner cartridges and supplies does not void your printer's warranty. We offer a 100% Quality Satisfaction Guarantee on our compatible 888637 laser toner cartridges and supplies.