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公开(公告)号：EP0013715B1
公开(公告)日：1983-03-16
申请号：EP79104789.7
申请日：1979-11-30
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公开(公告)号：EP0013715A1
公开(公告)日：1980-08-06
申请号：EP79104789.7
申请日：1979-11-30
摘要： Coincident current windings on a magnetic print head are driven in a special sequence to minimize undesired spurious printing effects otherwise caused by undesirable concentrations of magnetic flux. Rather than energizing all digit windings (in accordance with supplied data values) for each successive energization of a word winding, the digit windings are driven in multiple sub-sets or groups. Only one such sub-set is energized at any given time and the members of each sub-set are chosen to minimize undesired spurious magnetic flux distributions for any given magnetic printing head configuration.
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3.发明公开Fuser apparatus having a non-contact temperature sensor 失效Heizfixiervorrichtung mit kontaktlosemTemperaturfühler。
公开(公告)号：EP0011862A1
公开(公告)日：1980-06-11
申请号：EP79104760.8
申请日：1979-11-29
摘要： Apparatus for monitoring the surface temperature of a heated roller comprising a ferromagnetic material with a Curie point in a selected temperature range inserted in the surface of the roller and an AC bridge circuit having said material included by non-pontact coupling in one arm of said bridge. The bridge circuit responds to changes in the permeability of said material over a narrow range of temperatures centred at a given temperature to provide a control signal for controlling the temperature of the roller.
摘要翻译： 一种用于监测加热辊的表面温度的设备，包括具有插入在辊表面中的选定温度范围内的居里点的铁磁材料和具有所述材料的AC桥接电路，所述交流电桥电路包括在所述桥梁的一个臂中的非接触耦合 。 桥接电路响应所述材料的磁导率在以给定温度为中心的窄范围内的磁导率的变化，以提供用于控制辊的温度的控制信号。
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