| 摘要 |
A transfer device for transferring a toner image formed on an image carrier onto a transfer material conveyed on a transfer belt. The transfer device includes a cleaning member having a dielectric surface layer for cleaning a surface of the transfer belt, and a bias application unit for applying to the cleaning member a cleaning bias having an opposite polarity to an electric charge polarity of a toner forming the toner image. Further, specific characteristic values of the dielectric surface layer are set to achieve a higher than predetermined cleaning level, such as setting a volume resistivity of the dielectric surface layer is set to 1E4 ohms/square or more.
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