| 摘要 |
PURPOSE:To offer an image forming device by using one-component developer. CONSTITUTION:In order to hold the developer 25 supplied from a toner hopper 22 by a brush roller 23 and mount the developer on the surface of the developing roller 24, the developer 25 is electrostatically charged by rotating the brush roller 23 and the developing roller 24 in contact with each other, and the layer of the developer 25 is formed on the surface of the developing roller 24 in a thin film state, and then, in a developing part 28 as a contact part between the developing roller 24 and a photosensitive drum 27, the developer 25 is attracted by an electrostatic latent image on the surface of the photosensitive drum 27 so as to perform developing. A conductive porous thin plate 26 having a large number of holes for transmitting the developer 25 is arranged on the developer supplying port of the toner hopper 22, and the brush roller 23 is rotated rubbing the porous thin plate 26 and the developing roller 24 so as to supply the developer 25 to the developing roller 24. At this time, the developer 25 is supplied to the developing roller 24 by adjusting a bias voltage to be impressed on the porous thin plate 26, the brush roller 23 and the developing roller 24. |
