100% New Compatible  GPR-21 Canon ImageRunner C4080 C4580 Yellow Toner Cartridge guaranteed to perform with Canon Printers. The compatible replacement cartridges are particularly engineered to achieve the maximum standards of reliability and yields that meet or exceed OEM standards and offer high-quality printing results. Manufactured brand new under ISO 9001quality management with 100% new components, they are a cost efficient alternative to expensive OEM Canon Toner Cartridges. We offer a 100% Quality Satisfaction Guarantee.