PURPOSE: To prevent a deterioration such as the scattering of a transferred image by making a voltage applied to a transfer means under a specific condition lower than that applied to the transfer means when a recording medium is in contact with a recording medium guiding member.
CONSTITUTION: The voltage applied to the transfer means after the recording medium P fed to a transfer part passes through the guiding member 7 leading the recording medium P to the transfer part is made lower than that applied to the transfer means while the recording medium P is in contact with the guiding member 7, so that a transfer current is reduced and the scattering phenomenon of the image capable of being transferred from an image carrier 1 to the medium P can be reduced. At this time, through transfer efficiency is reduced, the dropping level of the voltage applied to the transfer means after the tailing edge of the medium P fed to the transfer part passes through the guiding member 7 leading the medium P to the transfer part is set in a range where the scattering phenomenon of the image to be transferred can be reduced and the transfer efficiency not causing any trouble in practical use can be obtained, so that an excellent transfer reduced in the scattering in all areas from the leading edge to the tailing edge of the medium P can be performed.
【目的】 像担持体表面に形成された可転写像を、該像 担持体の転写部位に給紙部から給送した記録媒体に対し て該記録媒体の背面から電荷を付与して静電転写させる 転写手段により転写させる画像形成装置について、転写 部位へ給送された記録媒体の後端が該記録媒体を転写部 位に導びく記録媒体案内部材を越えたときに生じやすい 転写画像の飛び散り劣化をなくす、もしくは軽減化す る。
【構成】 転写部位へ給送された記録媒体の後端が該記 録媒体を転写部位に導びく記録媒体案内部材を越えたら 前記転写手段に印加する電圧を記録媒体が前記記録媒体 案内部材に接触しているときに前記転写手段に印加する 電圧よりも小さくすること。