A system is disclosed for receiving information via a mobile communication device including receiving a dialog script by the mobile communication device for performing a dialog between the mobile communication device and a user. At least one developing device develops the electrostatic latent image with a developer including a toner to which a first lubricant is added to form a toner image on the surface of the image carrier. The first locking leg and second locking leg are connected to two opposite ends of the main body respectively for engaging with a retention frame on the printed circuit board.