Canon Color ImageClass MF-644 CDW :
• Different Yields: Your printer can also use these cartridges:
Our Compatible Toner Cartridges are guaranteed to give you the same results as new Canon toner cartridges at savings of up to 50%. You use them exactly the same as you would new Canon toner cartridges - when your printer runs empty, you remove the old toner cartridge, replace it with one of our Compatible Toner Cartridges and continue printing just as you would with a new Canon toner cartridge. Save money without compromising print quality!