| 摘要 |
PROBLEM TO BE SOLVED: To prevent the quality of an image from being badly deteriorated, which is formed in a state where toner having large particle size is left finally, in a developing device which is provided with a toner carrier at the lower part of a toner storing part in which the toner is stored, and where the amount of the carried toner is regulated by bringing a regulating member into contact with the surface of the toner carrier. SOLUTION: This developing device is provided with the toner carrier 12 carrying the toner (t) to a developing area opposed to an image carrier 1 at the lower part of the toner storing part 11 in which the toner (t) is stored, and the amount of the toner carried to the developing area is regulated by bringing the regulating member 15 into contact with the surface of the toner carrier 12. Then, a toner supply part 17 is formed by providing a partition member 16 having an opening 16a with a level difference between the toner storing part and the toner carrier, and a valve member 18 opening/closing the opening is attached so as to position its free end 18a above a fixed end 18b. |
