Patent 7233760 was granted and assigned to Lexmark International, Inc. on June, 2007 by the United States Patent and Trademark Office.
A toner cartridge for an image forming apparatus, the cartridge having: a housing defining a toner reservoir; a developer roller supported by the housing; a doctor blade supported by the housing and positioned adjacent the developer roller; and a retainer connected to the housing and positioned over a side of the doctor blade opposite the reservoir.