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    • 1. 发明授权
    • Wet-type image forming apparatus for forming a condensed toner image
    • 用于形成浓缩调色剂图像的湿式图像形成装置
    • US5666616A
    • 1997-09-09
    • US542724
    • 1995-10-13
    • Mie YoshinoMakoto ObuTakeo TsukamotoSeiichi MiyakawaYusuke TakedaMasami Hiramatsu
    • Mie YoshinoMakoto ObuTakeo TsukamotoSeiichi MiyakawaYusuke TakedaMasami Hiramatsu
    • G03G15/06G03G15/10G03G15/11
    • G03G15/11
    • A wet-type image forming apparatus produces a high-quality toner image by condensing a toner image on a photosensitive drum and adhering the toner image onto the photosensitive drum without contacting a liquid carrier applied on the photosensitive drum. The photosensitive drum carries a latent image formed thereon. The toner image is formed by developing the latent image by using a developing liquid including the liquid carrier and toner dispersed in the liquid carrier. An excessive amount of liquid carrier on the photosensitive drum is removed after the toner image is formed. An electric field is formed which causes a current to flow between an electrically conductive member and the photosensitive drum. An air gap is formed between the liquid carrier on the photosensitive drum and the electrically conductive member so that the current flows through the gap, the liquid carrier and the toner image. The toner image on the photosensitive drum is transferred to a transfer material after the toner image passes an area in which the electric field is generated.
    • 湿式图像形成装置通过将感光鼓上的调色剂图像聚焦并将调色剂图像粘附到感光鼓上而不接触施加在感光鼓上的液体载体而产生高质量的调色剂图像。 感光鼓承载形成在其上的潜像。 通过使用包括液体载体的显影液和分散在液体载体中的调色剂显影潜像来形成调色剂图像。 在形成调色剂图像之后,去除感光鼓上的过量液体载体。 形成电场,其导致电流在导电构件和感光鼓之间流动。 在感光鼓上的液体载体和导电构件之间形成气隙,使得电流流过间隙,液体载体和调色剂图像。 在调色剂图像通过其中产生电场的区域之后,将感光鼓上的调色剂图像转印到转印材料上。
    • 4. 发明授权
    • Image forming method and apparatus having a ratio of a thickness or a weight per unit area between liquid developer on a developing device and image carrier being smaller than about 0.71
    • 图像形成方法和装置,其显影装置上的液体显影剂与图像载体之间的单位面积的厚度或重量比小于约0.71
    • US06226468B1
    • 2001-05-01
    • US09350133
    • 1999-07-09
    • Takeo TsukamotoMakoto Obu
    • Takeo TsukamotoMakoto Obu
    • G03G1508
    • G03G15/101
    • A testing method for a liquid developer which adjusts a narrow gap formed between circumferences of two moving elements, applies different electric potentials to surfaces of the two moving elements to generate an electric field at the narrow gap, and applies the liquid developer to at least one of the two moving elements at a position upstream from the narrow gap in a moving direction of the two moving elements. Further, the method measures one of 1) a thickness, 2) a weight per unit area, and 3) a volume per unit area of liquid developer adhered to the circumferences of the two moving elements at a position downstream from the narrow gap in the moving direction of the moving elements, and calculates a ratio of one of 1) the thicknesses, 2) the weights, and 3) the volumes of the liquid developer between the two moving elements according to a measuring result in the measuring step.
    • 用于调节在两个移动元件的周长之间形成的窄间隙的液体显影剂的测试方法对两个移动元件的表面施加不同的电位,以产生窄间隙处的电场,并将液体显影剂施加到至少一个 在两个移动元件的移动方向上的窄间隙上游的位置处的两个移动元件。 此外,该方法测量以下各项之一:1)厚度,2)每单位面积的重量,以及3)粘附到两个移动元件周边的每单位面积的液体显影剂的体积在 并且根据测量步骤中的测量结果,计算出1)厚度,2)重量之间的比率,以及3)两个移动元件之间的液体显影剂的体积比。
    • 5. 发明授权
    • Image forming apparatus having liquid developing device for forming
compact developing layer
    • 具有用于形成紧凑型显影层的液体显影装置的图像形成装置
    • US6072972A
    • 2000-06-06
    • US946003
    • 1997-10-07
    • Makoto ObuTakeo Tsukamoto
    • Makoto ObuTakeo Tsukamoto
    • G03G15/10
    • G03G15/102G03G15/101
    • In an image forming apparatus having a liquid developing device, a thin layer of dense and viscous developing liquid is formed on a developer carrier and brought into contact with a latent image electrostatically formed on the surface of an image carrier in order to develop it. A preselected electric field is formed between the developer carrier and a device for regulating the thickness of the above layer, providing a dense layer with a uniform high toner content and an excess liquid surface layer. The excess liquid surface layer, formed with the developing liquid layer, is removed by a developing layer removing device. With this configuration, the apparatus ensures images free from irregularity.
    • 在具有液体显影装置的图像形成装置中,在显影剂载体上形成致密且粘稠的显影液的薄层,并与静电形成在图像载体的表面上的潜像接触,以便显影。 在显影剂载体和用于调节上述层的厚度的装置之间形成预选的电场,提供具有均匀的高调色剂含量的致密层和过量的液体表面层。 通过显影层去除装置除去由显影液层形成的多余的液面层。 通过这种配置,该装置可确保图像不受不规则的影响。
    • 7. 发明授权
    • Image forming apparatus for detecting viscosity of a liquid type
developer by utilizing a developer density detecting device
    • 用于通过利用显影剂浓度检测装置检测液体型显影剂的粘度的图像形成装置
    • US6134394A
    • 2000-10-17
    • US353778
    • 1999-07-15
    • Takeo TsukamotoYusuke Takeda
    • Takeo TsukamotoYusuke Takeda
    • G01N11/08G01N11/12G03G15/10
    • G01N11/12G01N11/08G03G15/105
    • An image forming apparatus having an improved developer density detecting device for detecting density of a liquid type developer without using an optical sensor. Density of the liquid type developer is detected based upon viscosity of the liquid type developer, which is obtained by sensing pressures, for example, of the liquid type developer sent by a pump and flowing through a developer circulating pipe and applying pressure data obtained by sensing pressures to a predetermined formula. The viscosity can also be obtained by dropping a steel ball, or moving a steel ball, through the liquid type developer and measuring an induced current in a coil based on movement of the steel ball. The viscosity can also be obtained by measuring torque of a device rotating with the liquid type developer.
    • 一种具有改进的显影剂密度检测装置的图像形成装置,用于在不使用光学传感器的情况下检测液体型显影剂的密度。 基于液体型显影剂的粘度来检测液体型显影剂的密度,该液体型显影剂通过感测例如由泵送出并流过显影剂循环管的液体型显影剂的压力获得并施加通过感测获得的压力数据 压力达到预定公式。 粘度也可以通过将钢球或移动钢球通过液体型显影剂并基于钢球的运动测量线圈中的感应电流来获得。 也可以通过测量用液体型显影剂旋转的装置的扭矩来获得粘度。
    • 10. 发明授权
    • Motor control device
    • 电机控制装置
    • US09077265B2
    • 2015-07-07
    • US13985860
    • 2012-02-08
    • Takeo TsukamotoDaisuke Hirono
    • Takeo TsukamotoDaisuke Hirono
    • H02P21/00H02P6/00H02P6/18H02P27/08
    • H02P6/001H02P6/18H02P21/26H02P27/08
    • A phase voltage setting unit is configured to define an actual current phase region including a current phase error range based on parameters to which is added an individual difference of at least any one of a motor and an inverter. The phase voltage setting unit defines a stable operation current phase region in which a rotor position can be detected through sensorless control, and sets, as a target current, an electric current obtained by adding a phase difference corresponding to the number of revolutions detected by the revolution number detecting unit to an electric current set by current vector control, such that the actual current phase region is within the stable operation current phase region.
    • 相电压设定单元被配置为基于附加了电动机和逆变器中的至少一个的个体差的参数来定义包括电流相位误差范围的实际电流相位区域。 相电压设定单元定义了通过无传感器控制能够检测转子位置的稳定动作电流相位区域,并且将作为目标电流的电流设定为通过将与由 转数检测单元设置为通过电流矢量控制设定的电流,使得实际电流相位区域在稳定的工作电流相位区域内。