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1.发明授权Image forming apparatus and image forming method with error corrected potential measurements 有权具有误差校正电位测量的图像形成装置和图像形成方法公开(公告)号：US08244146B2
公开(公告)日：2012-08-14
申请号：US13166980
申请日：2011-06-23
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。 测量误差发生在从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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公开(公告)号：US20100259127A1
公开(公告)日：2010-10-14
申请号：US12753782
申请日：2010-04-02
IPC分类号： H02N11/00
CPC分类号： B06B1/0292 , Y10T29/49117 , Y10T29/49155
摘要： When the initial displacement greatly varies among cells in an element, there is a need to reduce a bias voltage to be applied between electrodes. This decreases the sensitivity. An electromechanical transducer of the present invention includes an element having a plurality of cells. Each of the cells includes a first electrode and a second electrode that are provided with a cavity being disposed therebetween. A groove is provided at a position at a predetermined distance from the cavity of the cell on the outermost periphery of the element.
摘要翻译： 当元件中的单元之间的初始位移大大变化时，需要减少施加在电极之间的偏置电压。 这降低了灵敏度。 本发明的机电换能器包括具有多个单元的元件。 每个电池包括设置有设置在其间的空腔的第一电极和第二电极。 在元件的最外周上与电池的空腔隔开预定距离的位置设置槽。
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公开(公告)号：US07382137B2
公开(公告)日：2008-06-03
申请号：US11434780
申请日：2006-05-17
IPC分类号： G01R29/12
CPC分类号： G01R5/28
摘要： A potential measuring apparatus has a detection electrode on which an electric charge is induced according to a potential of a detection object, and a modulator for altering the generated quantity of the electric charge. The detection electrode has at least one depressed portion on a surface opposite to the detection object.
摘要翻译： 电位测量装置具有根据检测对象的电位感应电荷的检测电极和用于改变所产生的电荷量的调制器。 检测电极在与检测对象相反的表面上具有至少一个凹陷部分。
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公开(公告)号：US20070257682A1
公开(公告)日：2007-11-08
申请号：US11822320
申请日：2007-07-05
IPC分类号： G01R29/12
CPC分类号： G01R29/12
摘要： A potential sensor including first and second detection electrodes opposed to an object of which a potential is to be measured, and a movable shutter so positioned between the detection electrodes and the potential-measured object with gaps thereto; wherein the movable shutter can assume a first state and a second state, the first detection electrode is exposed to the potential-measured object wider when the movable shutter assumes the first state than when the movable shutter assumes the second state, and the second detection electrode is exposed to the potential-measured object narrower when the movable shutter assumes the first state than when the movable shutter assumes the second state.
摘要翻译： 包括与要测量电位的物体相对的第一和第二检测电极的电位传感器和位于检测电极和具有间隙的电位测量对象之间的活动快门; 其特征在于，所述活动快门能够呈现第一状态和第二状态，当所述活动快门采取第一状态时，所述第一检测电极暴露于所述电位测量对象的宽度大于所述可动快门处于所述第二状态时的所述第二检测电极 当活动快门呈现第一状态时，暴露于潜在测量物体的距离比当活动快门处于第二状态时更窄。
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公开(公告)号：US20070247166A1
公开(公告)日：2007-10-25
申请号：US11727672
申请日：2007-03-28
IPC分类号： G01R29/12
CPC分类号： G01R29/12 , G01R15/165
摘要： An electric potential measuring device comprises a detection electrode of a conductive material disposed in opposition to an object and a movable structure comprised of a first solid material portion of a dielectric and a second solid material portion of another dielectric or a conductive material. A charge induced on the detection electrode by electric lines of force from the object is modulated by moving the movable structure with a drive mechanism, to measure an electric potential of the object. An image forming apparatus comprises the electric potential measuring device and an image forming means for performing a control of an image formation by using the electric potential measuring device.
摘要翻译： 电位测量装置包括与物体相对设置的导电材料的检测电极和由电介质的第一固体材料部分和另一电介质或导电材料的第二固体材料部分组成的可移动结构。 通过用驱动机构移动可移动结构来调制通过来自物体的电力线在检测电极上感应的电荷，以测量物体的电位。 图像形成装置包括电位测量装置和用于通过使用电位测量装置执行图像形成控制的图像形成装置。
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公开(公告)号：US07274193B2
公开(公告)日：2007-09-25
申请号：US10551112
申请日：2004-03-26
IPC分类号： G01R29/12
CPC分类号： G01R29/12 , G01R15/165 , G01R29/24
摘要： A potential sensor (101) including first and second detection electrodes (121 a, b) opposed to an object of which a potential is to be measured, and a movable shutter (125) so positioned between the detection electrodes and the potential-measured object with gaps thereto; wherein the movable shutter can assume a first state and a second state, the first detection electrode is exposed to the potential-measured object wider when the movable shutter assumes the first state than when the movable shutter assumes the second state, and the second detection electrode is exposed to the potential-measured object narrower when the movable shutter assumes the first state than when the movable shutter assumes the second state.
摘要翻译： 包括与要测量电位的物体相对的第一和第二检测电极（121a，b）的电位传感器（101）和位于检测电极和电位测量对象之间的可移动快门（125） 有差距; 其特征在于，所述活动快门能够呈现第一状态和第二状态，当所述活动快门采取第一状态时，所述第一检测电极暴露于所述电位测量对象的宽度大于所述可动快门处于所述第二状态时的所述第二检测电极 当活动快门呈现第一状态时，暴露于潜在测量物体的距离比当活动快门处于第二状态时更窄。
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公开(公告)号：US20110255890A1
公开(公告)日：2011-10-20
申请号：US13166980
申请日：2011-06-23
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。 测量误差发生在从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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公开(公告)号：US07990159B2
公开(公告)日：2011-08-02
申请号：US12521081
申请日：2008-01-28
申请人： Kazuhiko Kato , Toshiyuki Ogawa , Yoshitaka Zaitsu , Takashi Ushijima , Kaoru Noguchi , Atsushi Kandori , Futoshi Hirose
发明人： Kazuhiko Kato , Toshiyuki Ogawa , Yoshitaka Zaitsu , Takashi Ushijima , Kaoru Noguchi , Atsushi Kandori , Futoshi Hirose
IPC分类号： G01R27/26
CPC分类号： G03G15/0266 , G01R29/12 , G03G15/5037
摘要： A potential measurement apparatus for measuring a surface potential of an object of measurement detects a change in electric charge induced at a detection electrode due to electrostatic induction by changing a distance between the detection electrode and the object of measurement in accordance with a predetermined period, using a neutral distance as reference, as a signal representing a change in electric current. The potential measurement apparatus includes a first detection unit for detecting a signal representing a fundamental period of the change in electric current and a signal representing a second harmonic period, a second detection unit for detecting information representing a capacitance between the detection electrode at the neutral distance and the object of measurement and an arithmetic unit for computationally obtaining information on the surface potential of the object of measurement, with eliminating an influence of the neutral distance and the capacitance, according to an outcome of detection of the first detection unit and an outcome of detection of the second detection unit.
摘要翻译： 用于测量测量对象的表面电位的电位测量装置根据预定周期改变检测电极与测量对象之间的距离，通过使用静电感应来检测在检测电极处感应的电荷的变化，使用 作为参考的中性距离，作为表示电流变化的信号。 电位测量装置包括：第一检测单元，用于检测表示电流变化的基本周期的信号和表示二次谐波周期的信号;第二检测单元，用于检测表示中性距离处的检测电极之间的电容的信息 以及测量对象和运算单元，用于根据第一检测单元的检测结果和消除第一检测单元的检测结果消除中性距离和电容的影响来计算获得关于测量对象的表面电位的信息， 检测第二检测单元。
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公开(公告)号：US20100300208A1
公开(公告)日：2010-12-02
申请号：US12786212
申请日：2010-05-24
申请人： Kazunari Fujii , Yoshitaka Zaitsu
发明人： Kazunari Fujii , Yoshitaka Zaitsu
IPC分类号： G01L9/12
CPC分类号： G01L9/0072 , G01H11/06 , G01L23/125 , H04R19/04
摘要： A capacitive electro-mechanical transducer includes a cell, the cell including a first electrode and a second electrode that is disposed opposite the first electrode with a gap therebetween; and a pressure-adjusting unit for adjusting pressure in the gap.
摘要翻译： 电容式机电换能器包括电池，所述电池包括第一电极和与第一电极相对设置的第二电极，其间具有间隙; 以及用于调节间隙中的压力的压力调节单元。
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公开(公告)号：US07741851B2
公开(公告)日：2010-06-22
申请号：US12119282
申请日：2008-05-12
IPC分类号： G01R29/12
CPC分类号： G01R5/28
摘要： A potential measuring apparatus has a detection electrode on which an electric charge is induced according to a potential of a detection object, and a modulator for altering the generated quantity of the electric charge. The detection electrode has at least one depressed portion on a surface opposite to the detection object.
摘要翻译： 电位测量装置具有根据检测对象的电位感应电荷的检测电极和用于改变所产生的电荷量的调制器。 检测电极在与检测对象相反的表面上具有至少一个凹部。
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