Katun Performance 36790 Compatible Copier Toner for Canon ImageRunner, Black Black Toner Cartridge Replaces Canon part number 0452B003AA (GPR-23) 576 grams per cartridge Backed by Katun's 1 Year Manufacturer Warranty For use in Canon imageRunner C 2550, imageRunner C 2550 I, imageRunner C 2880, imageRunner C 2880 I, imageRunner C 3080, imageRunner C 3080 I, imageRunner C 3380, imageRunner C 3380 I, imageRunner C 3480 and imageRunner C 3480 I color copiers and mops