Patent ID: 9075344
Filing Date: 2015-07-07
Classification: G03G

Abstract:
1. An image forming apparatus, comprising an image bearing member for bearing a toner image on a circumferential surface, a developing device including a developing roller for supplying toner to the circumferential surface of the image bearing member, and a toner container to be removably assembled with the developing device for supplying toner to the developing device, wherein: the toner container includes a container main body provided with a toner discharge opening at a predetermined position, a conveying screw for conveying toner stored in the container main body to the toner discharge opening and a container shutter member for opening and closing the toner discharge opening, and the toner container is assembled with the developing device along an assembling direction that is parallel to an axial direction of the conveying screw and is perpendicular to an axial direction of the developing roller, assembly of the toner container with the developing device along the assembling direction causing the container shutter member to move relative to the toner container in a direction parallel to the conveying screw and opposite to the assembling direction, thereby opening the toner discharge opening; the developing device includes: the container main body includes a container side first contact portion, the developer shutter member includes a shutter member side contact portion and the container side first contact portion comes into contact with the shutter member side contact portion in a mounting process of mounting the toner container to the container mounting portion of the developing device; and the container side first contact portion and the shutter member side contact portion are formed to displace the developer shutter member from the first position to the second position against a biasing force of the biasing member as the toner container moves in the assembling direction in the mounting process.