Canon Drum Unit, f/MF810CDN/820CDN, 35, 000 Page Yield, MA (CNMDRUM034M) EachDrum unit is developed utilizing precise specifications so you can be confident that your Canon MF810Cdn and MF820Cdn will produce high quality results, time and time again. Canon Genuine Organophotoconductor drums are designed to have exceptional charging characteristics, light responsiveness, charge storage, wear resistance and durability. Each drum yields approximately 34,000 pages. General Information Manufacturer: Canon, Inc Manufacturer Part