DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a developing device, which never causes a void image on an output image by preventing developer supported on a developer carrier and regulated by a developer regulating member from partially staying in a case member or the like, a process cartridge and an image forming apparatus. SOLUTION: The device includes a case member 23r which covers above a developer carrying member 23b1 while holding a developer regulating member 23c. The case member 23r is formed in such a manner that an opposed surface 23r1 opposed to the developer carrying member 23b1 is formed circularly to a predetermined position continuously to an opposed surface 23c1 of the developer regulating member 23c opposed to the developer carrying member 23b1, and the angleθformed by the opposed surface 23c1 of the developer regulating member 23c opposed to the developer carrying member 23b1 and the opposed surface 23r1 of the case member 23r opposed to the developer carrying member 23b1 is an obtuse angle. COPYRIGHT: (C)2010,JPO&INPIT