Designed by Canon engineers and manufactured in Canon facilities, this genuine toner cartridge is developed using precise specifications so you can be confident that your Canon device will produce high-quality results consistently in your Canon imageClass MF440 Series and LBP320 Series. The Single-Cartridge System combines the toner and drum into the same unit, which means you only have one consumable to replace. High-capacity cartridge yields approximately 21,000 pages.Designed by Canon engineers and manufactured in Canon facilities, this genuine toner cartridge is developed using precise specifications so you can be confident that your Canon device will produce high-quality results consistently in your Canon imageClass MF440 Series and LBP320 Series. The Single-Cartridge System combines the toner and drum into the same unit, which means you only have one consumable to replace. High-capacity cartridge yields approximately 21,000 pages.