| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device equipped with a developer stirring device capable of realizing efficient circulation and stirring while maintaining stable quantity even in the case of replenishing consumed developer or in the case of consuming much developer by image formation. SOLUTION: This developing device has a 1st carrying means (9), a 2nd carrying means (10), a partitioning member (11), a 1st aperture (12) and a 2nd aperture (13) at both ends of the member (11), and supplies the developer to a member while making it circulate. The device is provided with a 3rd aperture (18) branched from the means (10) and feeding a part of developer toward the means (9) between the aperture (12) and the aperture (13) of the member (11). |
