| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a development device capable of feeding a uniform developer to a developer carrier by uniformly setting height of a developer face of the developer in a feed carrying passage in the development device for delivering the developer passing a development region to the developer carrying passage different from the feed carrying passage by being fed to the developer carrier from the feed carrying passage, and to provide an image forming apparatus provided with the development device. <P>SOLUTION: The development device 4 having: a development sleeve for feeding a toner on latent images on a photoreceptor; the feed carrying passage 7 for carrying the developer along an axis line direction of the development sleeve while feeding the developer on the development sleeve; a feed screw 9 for giving carrying force to the developer in the feed carrying passage 7; a circulation carrying passage 8 for carrying the developer reaching the downstream end of a carrying direction of the feed carrying passage 7 to the upstream end of a carrying direction of the feed carrying passage 7; and a circulation screw 10 for giving carrying force to the developer 2 in the circulation carrying passage 8, wherein a feed bottom face 7b being a bottom face of the feed carrying passage 7 is inclined so as to be higher toward the downstream side of the carrying direction of the feed carrying passage 7. <P>COPYRIGHT: (C)2009,JPO&INPIT |
