The Canon imageRUNNER Advance 4051 uses black GPR-42 (4791B003) toner. This compatible toner is the standard capacity and yields about 34,200 pages. The same toner also fits the imageRUNNER Advance 4045, imageRUNNER Advance 4245 and imageRUNNER Advance 4251. Same-day shipping on most orders.
