Transfer device of image forming apparatus employing electro-photographic process and image forming apparatus disposing the same

摘要

A voltage adjusting thin plate 16 is arranged below a roller before transfer 7 so as to be abutted on a surface of the roller before transfer 7 at a side opposite to a side where a transfer wire 18 of a transfer device 9 is located. A paper powder removing thin plate 17 is arranged at a lateral side of the roller before transfer 7 so as to be abutted on a surface of the roller before transfer 7 at the same side as a side where the transfer wire 18 of the transfer device 9 is located. A bias voltage whose polarity is the same as a polarity of toner is applied to the voltage adjusting thin plate 16 only for a desired period, at least, just after the image forming apparatus 1 is activated and while application of voltage to the transfer device 9 is being stopped. As materials of the voltage adjusting thin plate 16 and the paper powder removing thin plate 17, preferably two-axial extensible polyester film is used.