Nar Cartridges's Canon GPR-22 series compatible high yield Drum Units are guaranteed to meet or exceed original Canon Drum Units in both print quality and page yield. Our drum units have been engineered to create consistent, high quality images. Our Compatible with Canon GPR-22 series compatible drum units are made with the highest quality new and recycled components in ISO9001 / ISO14001 certified factories. Nar Cartridges offers 100% OEM compatible toners and a lifetime performance guarantee.