Patent 7310494 was granted and assigned to Lexmark International, Inc. on December, 2007 by the United States Patent and Trademark Office.
An apparatus and method for the transport and/or storage of developing agent in an image forming apparatus. A cartridge may be employed having a reservoir for developing agent and a component, such as a drum, which may include an interior region capable of storing developing agent. A transport device may be included that is capable of transporting developing agent between the reservoir and a location in the image forming apparatus such as the drum interior.