The genuine Canon 049 imaging drum has been produced by the makers of your printer, meaning there is no other alternative built with equal precision or compatibility to your machine. Whilst some Canon laser printers have drums built into their toner cartridges, the 2165C001 comes as a separate unit, allowing you to change it whenever necessary.With an estimated page yield of 12,000 prints, this original Canon 049 drum unit keeps the running costs of your printer low, as it rarely needs replacing. The Canon 2165C001 is essential for the ongoing use of your printer and is a purchase that you will not regret.