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    • 2. 发明授权
    • Image transfer device
    • 影像传输装置
    • US4674860A
    • 1987-06-23
    • US766770
    • 1985-08-16
    • Hiroshi TokunagaShinobu SomaNaoki AokiTatsufumi Kusuda
    • Hiroshi TokunagaShinobu SomaNaoki AokiTatsufumi Kusuda
    • G03G15/16
    • G03G15/167G03G15/1695G03G2215/0174G03G2215/1619G03G2215/1657
    • An image transfer device which transfers a charged toner carried on an image carrier onto a copying material comprises a transfer drum having a conductive base and an insulating surface, the transfer drum being arranged opposite to the image carrier. An electrical charge is applied to the copying material in advance of the copying material arriving at the insulating surface of the transfer drum. An electrical charge is also provided on the surface of the transfer drum in advance of the copying material arriving at the insulating surface of the transfer drum for attracting the copying material to the surface of the transfer drum and to maintain the attraction by the charges during a copying operation. In place of providing a specified charge on the surface of the transfer drum, a bias voltage can be applied to the conductive base of the transfer drum to provide the attraction force for improving attraction of the copying material to the surface of the transfer drum and to maintain the attraction during a copying operation.
    • 将承载在图像载体上的带电调色剂转印到复印材料上的图像转印装置包括具有导电基底和绝缘表面的转印鼓,转印鼓布置成与图像载体相对。 在复印材料到达转印鼓的绝缘表面之前,向复印材料施加电荷。 在复制材料到达转印鼓的绝缘表面之前,还要在转印鼓的表面上提供电荷,以便将复制材料吸引到转印鼓的表面,并且保持在转印鼓的表面处的吸引力 复印操作。 代替在转鼓的表面上提供指定的电荷,可以将偏压施加到转印鼓的导电基底上,以提供吸引力,以提高复印材料对转印鼓表面的吸引力,以及 在复印操作期间保持吸引力。