DEVELOPING DEVICE, CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

摘要

A developing device includes: a flexible container, provide with an opening, for accommodating the developer; a frame for accommodating the container; an urging member, rotatably provided inside the frame, for urging the container by rotation thereof to deform the container; and a developer carrying member for carrying the developer on its surface to feed the developer. A distance X from a rotation center of the urging member to the surface of the developer carrying member and a length T from the rotation center of the urging member to a free end thereof for urging the container satisfy a relationship of X [ T. A shielding member for preventing contact of the urging member with the developer carrying member is provided between the rotation center of the urging member and the surface of the developer carrying member or in a neighborhood thereof.