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    • 73. 发明授权
    • Fixing device
    • 固定装置
    • US5722025A
    • 1998-02-24
    • US735539
    • 1996-10-23
    • Yuusuke MorigamiEiji OkabayashiTakeshi KatoTetsuro Ito
    • Yuusuke MorigamiEiji OkabayashiTakeshi KatoTetsuro Ito
    • G03G15/20H05B3/00
    • H05B3/0095G03G15/2053
    • A fixing device for heating and fixing an unfixed image to a record member bearing the unfixed image, including a heating roller, a backup member, and a current transmitting units. The heating roller includes a core roller, and a resistance heating member which is formed on the core roller and generates heat when a current is transmitted thereto through the current transmitting units, and is rotatably carried at opposite ends of the core roller by bearing units. The current transmitting units are arranged at positions opposed to the bearing units. The current transmitting unit includes a current receiver member and a current supply member. At mutual contact surfaces of them, the current receiver member has a concave section, and the current supply member has a convex section. The outer periphery circle of at least one side surface of said current receiver member has a radial difference of 6 mm or more with respect to an outer periphery circle of the heating roller at a sheet passing region. The heating roller has dust mevement restricting grooves.
    • 一种用于将未定影图像加热固定到承载未定影图像的记录构件的定影装置,包括加热辊,支撑构件和电流传输单元。 加热辊包括芯辊和电阻加热部件,该电阻加热部件形成在芯辊上,并且当电流通过电流传递单元传递到电流传递单元时产生热量,并且通过轴承单元可旋转地承载在芯辊的相对端。 电流传输单元布置在与轴承单元相对的位置处。 电流传输单元包括电流接收器构件和电流供应构件。 在它们的相互接触表面处,电流接收元件具有凹形部分,并且电流供给部件具有凸形部分。 所述电流接收元件的至少一个侧表面的外周圆相对于片材通过区域处的加热辊的外周圆具有6mm或更大的径向差。 加热辊具有灰尘限制槽。