The Canon imageClass MF4890dw monochrome laser multifunction printer is not your typical MFP printer as it comes with added features such as duplex (two-sided) scanning, copying, and faxing. But when it's time to replace its cartridge, just the same, getting one is easy if you do your shopping right here at Inkjets. The Compatible Canon 128 Black Toner Cartridge that we offer is designed to replace the OEM Canon 128, so it is guaranteed to work and fit in your Canon ImageClass MF4890DW. It is a long-lasting cartridge that can yield up to 2,100 pages and deliver the same reliable performance. It comes in a twin pack, so if you haven't got a spare cartridge, then this is a good option for you. Get our Canon 128 Compatible Black Toner Cartridge Twin Pack here and enjoy excellent and reliable results at an affordable price.