| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device, a process cartridge, and an image forming apparatus where an inconvenience, such as, damaging of a developer carrier is not caused and a developer, after a developing process separated from the developer carrier in a second conveying route, is not carried again by the developer carrier. <P>SOLUTION: Two conveying members 13b1 and 13b2 for conveying the developer in the longitudinal direction and forming a circulation route are installed so as to face the developer carrier 13a, and a developer regulating member 13c is arranged under the developer carrier 13a. The position of the rotating center axis of the second conveying member 13b2 exists, in a space M1 between a virtual horizontal line passing the upper end of the developer carrier 13a and a virtual horizontal line passing the lower end. A position K on the developer carrier 13a for equally dividing the distance between two magnetic poles H3 and H5, forming a developer separation magnetic pole H4, exists above the virtual horizontal line S1 that passes through the rotating center axis of the developer carrier 13a. <P>COPYRIGHT: (C)2011,JPO&INPIT |
