Developing member for an image forming apparatus

A developing member comprising:

• a developing member main body adapted for containing a developer;
• a plurality of developer supply openings for supplying the developer contained in said developing member main body, wherein the plurality of developer supply openings are formed on a surface of the developing member main body substantially along a longitudinal axis of the developing member main body;
• a sealing member sealing said developer supply openings;
• a grip member connected to one end of said sealing member;
• positioning means provided at the grip member;
• and
• a position member fixedly provided in one end wall of said developing member main body and adapted for receiving the positioning means of said grip member to secure said grip member to the end wall of said developing member main body and for releasing the positioning means of said grip member to discharge said grip member from the end wall of said developing member main body when desired,
• wherein said surface of the developing member main body projects over said one end wall along the longitudinal axis of said developing member main body such that as the positioning means is received by said position member, a portion of said sealing member is around an edge of said surface and bent over to the back of said surface of the developing member main body.