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    • 8. 发明授权
    • Image forming apparatus with potential control
    • 具有电位控制的图像形成装置
    • US4939542A
    • 1990-07-03
    • US349850
    • 1989-05-10
    • Shigeo KurandoHiromi SakataMasami YamadaHidehiro TabuchiYukio HashimotoYoshinobu Takemura
    • Shigeo KurandoHiromi SakataMasami YamadaHidehiro TabuchiYukio HashimotoYoshinobu Takemura
    • G03G15/02
    • G03G15/0266
    • An image forming apparatus having a potential sensor for measuring a potential at the surface of a photoreceptor drum; a voltage generation circuit for generating a voltage lower than a voltage to be actually induced at the surface of the photoreceptor drum in the course of image formation; switching means for switching a condition so that the photoreceptor is connected to the voltage generation circuit or earthed; and charger-output control means for obtaining a value of a surface potential of the photoreceptor measured by the potential sensor at the time when a voltage form the voltage generation circuit is applied to the photoreceptor by operating the switching means, estimating by arithmetic operation, on the basis of the measured value thus obtained, a value to be measured by the potential sensor when a high voltage is actually induced at the photoreceptor surface in the course of the image formation, and controlling an output from the charger based on the value estimated by the above arithmetic operation when a voltage is applied to the photoreceptor surface by the charger prior to image forming operation.
    • 一种图像形成装置,具有用于测量感光鼓表面的电位的电位传感器; 电压产生电路,用于在图像形成过程中产生低于感光鼓表面实际感应的电压的电压; 切换装置,用于切换条件以使感光体连接到电压产生电路或接地; 以及充电器输出控制装置,用于通过操作开关装置获得电压传感器测得的感光体的表面电位值,该电压值由电压产生电路施加到感光体上时,通过算术运算估计 由此获得的测量值的基础,当在图像形成过程中当在感光体表面实际感应到高电压时由电位传感器测量的值,以及基于由图像形成估计的值来控制来自充电器的输出的值 在图像形成操作之前通过充电器将电压施加到感光体表面的上述算术运算。
    • 9. 发明授权
    • Motor-driven radial plunger pump
    • 电动式径向柱塞泵
    • US4627793A
    • 1986-12-09
    • US738649
    • 1985-05-28
    • Masatoshi KuroyanagiMasahiko SuzukiYasuhiro HoriuchiKazuma MatsuiKouichi MoriguchiYukio Hashimoto
    • Masatoshi KuroyanagiMasahiko SuzukiYasuhiro HoriuchiKazuma MatsuiKouichi MoriguchiYukio Hashimoto
    • F04B17/03H02K9/19H02K9/26F15B21/04
    • F04B17/03H02K9/19H02K9/26
    • A motor-driven radial plunger pump has an outer housing enclosing a motor section and a pump section drivingly connected thereto. The motor section has a motor housing cooperating with the outer housing to define a fluid passage having a fluid inlet adjacent to a part of the motor housing in which a brush unit is disposed. The fluid passage contains a filter element and has a recess disposed upstream thereof and adjacent to motor magnets so that magnetic particles contained in the fluid flow are magnetically adhered to and deposited on the bottom of the recess. The pump section has a rotor with radial plungers slidably disposed in cylinder bores in the rotor. The cylinder bores have radially inner end successively communicated with a suction passage communicated with the fluid passage between the outer and motor housings through feed holes formed in a coupling disc plate drivingly connecting the motor with the rotor. The feed holes each have a trailing side providing a face extending an angle of attack relative to the plane of the coupling disc plate whereby, when the disc plate is rotated with the rotor, the feed holes operate to positively feed the fluid into the suction passage.
    • 马达驱动的径向柱塞泵具有包围马达部分的外部壳体和与其驱动连接的泵部分。 电动机部分具有与外部壳体配合的电动机壳体,以限定流体通道,该流体通道具有与电动机壳体的一部分相邻的流体入口,电动机壳体设置有刷子单元。 流体通道包含过滤元件,并且具有设置在其上游并邻近电动机磁体的凹部,使得容纳在流体流中的磁性颗粒磁性地粘附并沉积在凹部的底部。 泵部分具有转子,其具有可滑动地设置在转子中的气缸孔中的径向柱塞。 气缸孔具有径向内端,该吸入通道与外部和电动机壳体之间的流体通道连通,通过形成在驱动地将电动机与转子连接的联接盘板中的供给孔连续地连通。 进给孔各自具有提供相对于联接盘片的平面延伸的冲击面的后缘,由此当盘片与转子一起旋转时,进给孔的作用是将流体积极地供给到吸入通道 。