| 摘要 |
An image forming apparatus includes an image bearing member, an image forming device for sequentially forming toner images of different colors on the image bearing member, the image forming device including a charging member for electrically charging the image bearing member to a polarity which is the same as a regular charging polarity of the toner. The apparatus also includes an intermediary transfer member having a volume resistivity of 1010-1016OMEGA.cm, an image transferring device for applying a voltage to the intermediary transfer member to transfer electrostatically, sequentially, and superimposedly the toner images of the different colors formed on the image bearing member by the image forming means onto the intermediary transfer member, wherein toner images on the intermediary transfer member are transferred onto a transfer material, and a control device for controlling a voltage applied to the charging member, the control device controlling the voltage applied to the intermediary transfer member by the image transferring device in accordance with the voltage applied to the charging member.
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