| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely prevent generation of toner aggregation and toner sticking with an extremely simple configuration without interrupting miniaturization of a device. <P>SOLUTION: In a developing device wherein at least a first conveying screw 11 is arranged in a case 10, a developer sticking prevention member 70A for preventing the sticking of a developer to the first conveying screw 11 is arranged in the vicinity of a toner feeding port 26 formed on the case 10. Namely, the developer sticking prevention member 70A is formed by a twisted coil spring wherein a center part of a wire material is wound like a coil, and in a state that a wound part 71 of the twisted coil spring 70A is supported by a support plate 81 of the case 10, one arm part 72 is fixed on the support plate 81 and the other arm part 73 is extended so as to be abutted on a fin 11a and a rotary shaft 11b of the first conveying screw 11. <P>COPYRIGHT: (C)2008,JPO&INPIT |
