| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrification device capable of applying the electric charge in single polarity on material to be electrified with a small size at a low cost, and to provide a developing device or an image forming device being free from irregularities in the image by adopting this electrification device as an electrification device of toner for developing, or the transferring device of the toner image. SOLUTION: On an insulating substrate 11, the electric charge imparting member 12 consisting of a power feeding electrode 12a and a semiconductive member 12b on the surface thereof is formed, and an insulating spacer 13 is formed on the periphery of this charge imparting member. On the surface of the spacer 13, an electric field controlling member 14 in a mesh shape held in contact therewith is supported in a state that the stretching force is introduced in the lengthwise direction. The charge imparting member 12, the spacer 13 and the electric field controlling member 14 is respectively composed of inorganic material. Between the charge imparting member 12 and the electric field controlling member 14, the voltage so as to cause the continuous discharge is applied, and moreover, between the electric field controlling member 14 and the conductive substrate, the voltage so as to generate the electric field capable of guiding ion or electron of desired polarity to the conductive substrate side. |
