| 摘要 |
An image transfer device and method for providing an image transfer device are provided in which a transfer belt is utilized for transferring an image from an image carrier to a transfer sheet, with a bias member supplying a bias voltage to the transfer belt. The bias member has a first layer and a second layer, with the first layer contacting an inner surface of the transfer belt, and with the second layer disposed below the first layer. The volume resistivity of the first layer is larger than that of the second layer. A relationship is also provided of an acceptable range of belt and roller resistivities, such that maintaining each of the belts and rollers (bias members) of a production lot within the range limits will ensure acceptable results despite variations of belt and roller resistivities within the production lot.
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