| 摘要 |
PURPOSE:To unify toner density of a developer, by providing a stirring member for stirring and carrying out the developer, a receiving member for receiving the developer and a supplied toner, and an auxiliary rotating member, on a dry type electrostatic recording device. CONSTITUTION:A developer 10 in a developing device 3 and a newly supplied toner are mixed by a screw-shaped supplying and rotating member 16 together with a developer thrown into a receiving part 15 by a main stirring member 14, drop from a toner dropping port 15A, and stirred again in the opposite direction by a screw-shaped auxiliary sturring member 17, and are fed to a main stirring member 14. The stirring member 14 has a screw-shaped constitution which fits a lot of elliptical plates diagonally to the shaft, scoops up a part of the developer 10 and throws it into a receiving member 15, but the sufficiently mixed developer 10 is attracted by a sleeve 11 having a magnet 12. In this way, it is stirred sufficiently in the long flow path, therefore, to the surface in the axial direction of the sleeve 11, a developer of uniform toner density and quantity is supplied at all times, and also sufficient friction electrification is executed. |
