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公开(公告)号：US20080112717A1
公开(公告)日：2008-05-15
申请号：US11923039
申请日：2007-10-24
IPC分类号： G03G15/00
CPC分类号： G03G15/5037 , G03G2215/00054
摘要： There is provided an image forming apparatus and method capable of reducing a measurement error in a measurement result of the surface potential of an electrostatic latent image formed on the surface of an image bearing member. The measurement error occurs under the influence of an electric field generated from a pre-exposed area. Consequently, miniaturization of an image forming apparatus and consistent print quality can be achieved. The image forming apparatus includes an image forming control section for determining an error correction value corresponding to the charge state of a latent image on the basis of relationships between charge states of the latent image and error correction values which have been prepared in advance, computing an error corrected potential measurement value using the error correction value and a potential measurement value, and controlling the image forming apparatus on the basis of the error corrected potential measurement value.
摘要翻译： 提供了一种图像形成装置和方法，其能够降低在图像承载部件的表面上形成的静电潜像的表面电位的测量结果中的测量误差。 测量误差发生在由预曝光区域产生的电场的影响下。 因此，可以实现图像形成装置的小型化和一致的打印质量。 图像形成装置包括图像形成控制部分，用于根据潜在的图像的电荷状态和预先准备的误差校正值之间的关系来确定与潜像的电荷状态对应的误差校正值，计算 使用误差校正值和电位测量值的误差校正电位测量值，并且基于误差校正电位测量值来控制图像形成装置。
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52.发明授权公开(公告)号：US07372278B2
公开(公告)日：2008-05-13
申请号：US11500926
申请日：2006-08-09
CPC分类号： G01R15/165 , G01N27/22 , G03G15/5037
摘要： An electric potential measuring apparatus includes a detecting electrode, a modulator for changing an electrostatic capacitance between a measurement object and the detecting electrode by mechanical vibration, a charge detector for detecting the amount of charges electrostatically induced in the detecting electrode by the modulator, and a vibration generating-detecting unit for selectively performing either a vibration generating function of exciting the mechanical vibration, or a detecting function of detecting the condition of the mechanical vibration.
摘要翻译： 电位测量装置包括检测电极，用于通过机械振动改变测量对象和检测电极之间的静电电容的调制器，用于检测由调制器在静电感应的检测电极中的电荷量的电荷检测器，以及 振动产生检测单元，用于选择性地执行激发机械振动的振动产生功能，或者检测机械振动的状态的检测功能。
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公开(公告)号：US20070170925A1
公开(公告)日：2007-07-26
申请号：US11596570
申请日：2005-12-08
IPC分类号： G01R29/12
CPC分类号： G03G15/5037 , G03G2215/00632
摘要： An electric potential measuring apparatus comprises a movable portion having a detecting electrode and a magnetic force receiving means, a magnetic force generation means, an electric field shielding means, and a detection means for detecting an amount of an electric charge which is electrostatically induced on the detecting electrode, the electric field shielding means transmitting a magnetic field generated by the magnetic force generation means to make it arrive at the magnetic force receiving means but shielding the detecting electrode from an electric field generated by the magnetic force generation means to interrupt arrival to the detecting electrode and not to obstruct the detection by the detection means substantially.
摘要翻译： 电位测量装置包括具有检测电极和磁力接收装置的可动部分，磁力产生装置，电场屏蔽装置和检测装置，用于检测静电感应电荷的量 所述电场屏蔽装置发送由所述磁力产生装置产生的磁场，使其到达所述磁力接收装置，但是将所述检测电极与由所述磁力产生装置产生的电场屏蔽，以中断到达所述磁力产生装置 检测电极并且不妨碍检测装置的检测。
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54.发明授权公开(公告)号：US07242882B2
公开(公告)日：2007-07-10
申请号：US10540978
申请日：2004-03-25
IPC分类号： G03G15/00
CPC分类号： G01R29/12
摘要： To provide an electric potential measuring device which is useful in realizing size reduction, high sensitivity, and high reliability. The electric potential measuring device includes: an oscillating device which includes torsion springs, and an oscillating body axially supported by the springs to oscillate; and signal detecting unit which is located on a surface of the oscillating body. A capacitance between the detection electrode and a surface of an electric potential measuring object is varied by varying a distance therebetween by the oscillating device, whereby an output signal appearing on the detection electrode is detected.
摘要翻译： 提供用于实现尺寸减小，高灵敏度和高可靠性的电位测量装置。 电位测量装置包括：摆动装置，其包括扭转弹簧和由弹簧轴向支撑以摆动的摆动体; 以及信号检测单元，其位于振动体的表面上。 检测电极和电位测量对象的表面之间的电容通过由振荡装置改变它们之间的距离来改变，由此检测出在检测电极上的输出信号。
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公开(公告)号：US07149442B2
公开(公告)日：2006-12-12
申请号：US11148277
申请日：2005-06-09
CPC分类号： G03G15/5037
摘要： An electric potential sensor includes a detecting electrode, a capacitor modulating unit for modulating a coupling capacitance between the detecting electrode and a measurement object by using an electrostatic force, and a shielding unit for electrically shielding the detecting electrode from electric fields due to the electrostatic force of the capacitor modulating unit. An electric potential of the measurement object is measured based on a change caused by the capacitor modulating unit in the amount of electrical charge induced in the detecting electrode. Entrance of lines of electric force due to the electrostatic force of the capacity modulating unit into the detecting electrode is prevented or reduced, so that an unfavorable mixture of driving noise into an output signal of the detecting electrode can be prevented or reduced.
摘要翻译： 电位传感器包括检测电极，电容器调制单元，用于通过使用静电力来调制检测电极和测量对象之间的耦合电容;以及屏蔽单元，用于将检测电极与由静电力导致的电场电屏蔽 的电容调制单元。 基于由电容器调制单元在检测电极中感应的电荷量引起的变化来测量测量对象的电位。 防止或减少由于电容调节单元的静电力而导致的检测电极的电力线入口，从而可以防止或减少驱动噪声对检测电极的输出信号的不良混合。
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公开(公告)号：US20060158196A1
公开(公告)日：2006-07-20
申请号：US11385392
申请日：2006-03-21
IPC分类号： G01R29/12
CPC分类号： G01R29/12 , G03G15/5037
摘要： An electric potential measuring apparatus including a substrate disposed facing a measurement object, a detecting electrode provided insulated from the substrate, and a capacity modulating unit for modulating a coupling capacity between the detecting electrode and the measurement object. In the electric potential measuring apparatus, a region with a dielectric constant less than a dielectric constant of the substrate is formed in the substrate to achieve an increase in resistivity of a portion of the substrate between detecting electrodes, or a decrease in a stray capacity between the detecting electrode and the substrate.
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