摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device with which high-quality image formation is performed by normally functioning an air pump by preventing toners residual on the inner walls of the elastic pipe or the like of a mixed air conveying means from flowing back to the side of the air pump even when vibrations are applied after the stop of the air pump. SOLUTION: This device is composed of a developing means 2 for forming a toner image by developing an electrostatic latent image formed on an image carrier 1, air pump 3 for supplying a gas for fluidizing toners T to be supplied to the developing means 2 while circulating them, mixed air conveying means 4 for conveying the mixture of toners T and the gas and forming a circulation route for circulating the gas while being connected to an inhale port 3a and an exhale port 3b of the air pump 3, and check means 5 provided on the side of the mixed air conveying means 4 connected to the exhale port 3b so as to prevent the back flow of toners T. |