| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a developing device capable of preventing the occurrence of both a corotation and an insufficient amount of carried developer with a structure separating a recovery conveyance path and a supply conveyance path; an image forming device equipped with the same; and a process cartridge. <P>SOLUTION: A developing device 5 has a developing sleeve 51, a supply screw, and a recovery screw 54. The recovery screw 54 is disposed at a position upper than the supply screw across a partition member 57 for separating a supply conveyance path in which the supply screw 53 is disposed from a recovery conveyance path 54a in which the recovery screw 54 is disposed. A developer drop port 71 for dropping a developer G reaching a downstream end in the conveyance direction of the recovery screw 54 in the recovery conveyance path 54a is disposed in the partition member 57. The opening of the developer drop port 71 has a trapezoidal shape in which the opening width of the recovery conveyance path 54a grows wider toward a downstream side in the conveyance direction of the recovery screw 54. <P>COPYRIGHT: (C)2012,JPO&INPIT |
