Patent ID: 7587155
Filing Date: 2009-09-08
Classification: G03G

Abstract:
1. A process cartridge including a developing unit having a developing roller and being detachably mountable to an image forming apparatus main body, and a toner unit accommodating a toner and being detachably mountable to the developing unit, wherein the developing unit includes a developer casing provided with an accommodating section for accommodating the toner unit and formed with a first opening for receiving a toner from the toner unit, the toner unit includes a toner casing for accommodating the toner, and an agitating member provided in the toner casing for agitating the toner in the toner casing by rotation, the developer casing includes a first fixing member for fixing the toner unit to the accommodating section, and a second fixing member disposed at the opposite side of the first fixing member in relation to the accommodating section and for fixing the toner unit to the accommodating section, and the toner casing is formed with a second opening opposed to the first opening and supplying the toner to the first opening when the toner unit is attached to the developing unit and the second opening is located at a downstream side of the agitating member in an attaching direction of the toner unit to the developing unit, and includes: a grasp portion disposed at the opposite side of the second opening in relation to a rotation shaft of the agitating member; a first fixed portion disposed between the second opening and the grasp portion in a rotation direction of the agitating member and received by and fixed to the first fixing member when the toner unit is attached to the developing unit; and a second fixed portion disposed at the opposite side of the first fixed portion in relation to the rotation shaft of the agitating member and fixed to the second fixing member when the toner unit is attached to the developing unit.