The present invention relates to controlling the mass flow of toner in an image forming device or a toner cartridge. The toner composition includes extra particulate additives including a conductive additive. The extra particulate additives may also include relatively small silica particles or relatively...http://www.google.de/patents/US7695882?utm_source=gb-gplus-sharePatent US7695882 - Toner formulation for controlling mass flow
