| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device capable of reducing stress on developer in circulation conveyance, and to provide an image forming apparatus including the developing device. <P>SOLUTION: The developing device includes: a developer conveying spiral member that stirs and conveys the developer in a developer conveyance path; and a developer scraping-out member. The developer conveyance path has: first and second developer conveyance paths P and Q; and first and second communicating paths (a) and (b) making the first and second developer conveyance paths P and Q communicate with each other on both sides. The developer conveying spiral member has first and second developer conveying spiral members 112 and 113 arranged in the first and second developer conveyance paths P and Q. The developer scraping-out member has: a first developer scraping-out member 118A arranged near the first communicating path (a) and feeding the developer in the first developer conveyance path P into the second developer conveyance path Q; and a second developer scraping-out member 118B arranged near the second communicating path (b) and feeding the developer in the second developer conveyance path Q into the first developer conveyance path P. Then, the developer is made to circulate between the first developer conveyance path P and the second developer conveyance path Q. <P>COPYRIGHT: (C)2011,JPO&INPIT |
