Method of using biased charging/transfer roller as in-situ voltmeter and photoreceptor thickness detector and method of adjusting xerographic process with results
    41.
    发明授权
    Method of using biased charging/transfer roller as in-situ voltmeter and photoreceptor thickness detector and method of adjusting xerographic process with results 有权
    使用偏置充电/转印辊作为原位电压表和感光体厚度检测器的方法以及结果调整静电印迹过程的方法

    公开(公告)号:US07747184B2

    公开(公告)日:2010-06-29

    申请号:US11644277

    申请日:2006-12-22

    IPC分类号: G03G15/00

    CPC分类号: G03G15/5037 G03G15/553

    摘要: The dielectric thickness of a photoreceptor is determined in a variety of ways, including using a relationship between threshold voltage and dielectric thickness, using a relationship between dielectric thickness and the difference between biased transfer roller (BTR) voltage and photoreceptor surface potential, using a relationship between dielectric thickness and biased charging roller (BCR) impedance, using a relationship between dielectric thickness and the slope of the DC current vs. voltage curve for the BTR or the BCR, and using a relationship between dielectric thickness and the BTR voltage at zero current. The threshold voltage can be found by using the slope of the BCR DC current vs. voltage curve, measuring photoreceptor surface potential for a plurality of target values below the charging knee to obtain the intercept value, or finding the actual value of the charging knee. A method of using the BCR as an electrodynamic voltmeter is also disclosed.

    摘要翻译: 感光体的电介质厚度以各种方式确定,包括使用阈值电压和电介质厚度之间的关系,使用介电厚度与偏置转印辊(BTR)电压和感光体表面电位之差的关系,使用关系式 介电厚度和偏置充电辊(BCR)阻抗之间的关系,使用电介质厚度与BTR或BCR的直流电流与电压曲线的斜率之间的关系,并使用介电厚度与零电流下的BTR电压之间的关系 。 可以通过使用BCR直流电流对电压曲线的斜率来求出阈值电压,测量在充电膝盖以下的多个目标值的感光体表面电位,以获得截距值,或者找到充电膝盖的实际值。 还公开了使用BCR作为电动电压计的方法。

    Charger with a probe and controller
    42.
    发明授权
    Charger with a probe and controller 有权
    带探头和控制器的充电器

    公开(公告)号:US07715743B2

    公开(公告)日:2010-05-11

    申请号:US11707369

    申请日:2007-02-16

    CPC分类号: G03G15/0258 G03G2215/028

    摘要: This is a charging assembly that is useful in marking processes with an electrostatically charged surface. The assembly includes, besides the charger, a controller and an electric field probe. Charge and current flows can be detected by the probe and corrected immediately after detection of flaws by the probe and conveyed to the controller. If flaws in the charger are determined by the probe, corrections are made to the output by a controller; this is done before a final copy or print is made. The term flaws as used means any non-uniform appearing region in the printed image or any otherwise unacceptable defect. The probe is enabled to detect and indicate flaws and the controller which is in communication with the probe takes corrective action on the flaws. The probe used is a novel probe having two sensing elements surrounded by one or more reference electrodes.

    摘要翻译: 这是一种充电组件,可用于带静电充电表面的标记工艺。 除了充电器之外,组件还包括控制器和电场探头。 可以通过探头检测充电和电流,并在通过探头检测到缺陷后立即进行校正,并将其传送到控制器。 如果充电器中的缺陷由探头确定,则由控制器进行校正; 这是在完成最终复印或打印之前完成的。 所使用的术语缺陷是指印刷图像中的任何不均匀的出现区域或任何其他不可接受的缺陷。 探头能够检测并指示缺陷,与探头通信的控制器对缺陷进行纠正。 使用的探针是具有由一个或多个参考电极包围的两个感测元件的新型探针。

    HIGH STRENGTH, LIGHT WEIGHT CORONA WIRES USING CARBON NANOTUBE YARNS
    43.
    发明申请
    HIGH STRENGTH, LIGHT WEIGHT CORONA WIRES USING CARBON NANOTUBE YARNS 有权
    高强度,轻重量使用碳纳米管纱的科罗纳尼丝

    公开(公告)号:US20090252535A1

    公开(公告)日:2009-10-08

    申请号:US12062169

    申请日:2008-04-03

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0291 G03G2215/027

    摘要: Exemplary embodiments provide materials and devices for a corona charging. Specifically, carbon nanotube yarns can be used as corona wires (or coronode) in a corotron-type or scorotron-type charging device. The carbon nanotube yarns can provide small diameters, and desired electrical, mechanical and thermal properties. The carbon nanotube yarns can have a diameter of about 100 microns or less for a low operating voltage of the charging device.

    摘要翻译: 示例性实施例提供用于电晕充电的材料和装置。 具体地说,碳纳米管纱线可以用作corotron型或scorotron型充电装置中的电晕丝(或冠状丝)。 碳纳米管纱线可以提供小直径,以及期望的电气,机械和热性能。 对于充电装置的低工作电压,碳纳米管纱线可以具有约100微米或更小的直径。

    Charger with a probe and controller
    44.
    发明申请
    Charger with a probe and controller 有权
    带探头和控制器的充电器

    公开(公告)号:US20080199195A1

    公开(公告)日:2008-08-21

    申请号:US11707369

    申请日:2007-02-16

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0258 G03G2215/028

    摘要: This is a charging assembly that is useful in marking processes with an electrostatically charged surface. The assembly includes, besides the charger, a controller and an electric field probe. Charge and current flows can be detected by the probe and corrected immediately after detection of flaws by the probe and conveyed to the controller. If flaws in the charger are determined by the probe, corrections are made to the output by a controller; this is done before a final copy or print is made. The term flaws as used means any non-uniform appearing region in the printed image or any void region within the printed image including any otherwise unacceptable defect such as a jagged line that is visible to an end user. The probe is enabled to detect and indicate flaws and the controller which is in communication with the probe takes corrective action on the flaws. The probe used is a novel probe having two sensing elements surrounded by one or more reference electrodes.

    摘要翻译: 这是一种充电组件,可用于带静电充电表面的标记工艺。 除了充电器之外,组件还包括控制器和电场探头。 可以通过探头检测充电和电流,并在通过探头检测到缺陷后立即进行校正,并将其传送到控制器。 如果充电器中的缺陷由探头确定,则由控制器进行校正; 这是在完成最终复印或打印之前完成的。 所使用的术语缺陷是指印刷图像中的任何不均匀的出现区域或印刷图像内的任何空隙区域,包括任何其他不可接受的缺陷,例如最终用户可见的锯齿状线。 探头能够检测并指示缺陷,与探头通信的控制器对缺陷进行纠正。 使用的探针是具有由一个或多个参考电极包围的两个感测元件的新型探针。

    Electric field probe
    45.
    发明申请
    Electric field probe 失效
    电场探头

    公开(公告)号:US20080197853A1

    公开(公告)日:2008-08-21

    申请号:US11707355

    申请日:2007-02-16

    IPC分类号: G01R29/12

    CPC分类号: G01R29/14 G03G2215/00987

    摘要: This is an electronic scanning probe, preferably made up of at least two sensing elements, each sensing element substantially surrounded by reference electrodes. These sensing elements are separated at a distance that causes little or no cross-interference to take place between these sensing elements when positioned in concert with a surface of interest. Ideally, this probe is used in electrostatic marking systems where an electrostatic charge is placed onto a receiving surface.

    摘要翻译: 这是一种电子扫描探针,优选地由至少两个感测元件组成,每个感测元件基本上被参考电极包围。 这些感测元件在与感兴趣的表面一致定位时在这些感测元件之间几乎不发生交叉干扰的距离处分开。 理想情况下,该探头用于静电打印系统,其中静电电荷被放置在接收表面上。

    Method and system for improved solid area and heavy shadow uniformity in printed documents
    47.
    发明授权
    Method and system for improved solid area and heavy shadow uniformity in printed documents 有权
    打印文件中固体面积和阴影均匀性提高的方法和系统

    公开(公告)号:US08599434B2

    公开(公告)日:2013-12-03

    申请号:US12391888

    申请日:2009-02-24

    IPC分类号: G06F15/00 H04N1/60

    摘要: A method for minimizing cross-process non-uniformities in solid and heavy shadow regions of printed documents is provided. The method includes marking with a marking engine an image on an image bearing surface moving in a process direction; generating profile data of the image by sensing an optical characteristic of the image in a cross-process direction; adjusting at least one control actuator of the marking engine so as to shift the characteristic of a subsequent marked image in the cross-process direction to at least a target value; and generating a spatially varying tone reproduction curve to smooth the characteristic of the subsequent marked image towards the target value.

    摘要翻译: 提供了一种用于最小化印刷文件的实影和重影区域中的交叉过程非均匀性的方法。 该方法包括用标记引擎在图像承载表面上沿着处理方向移动的图像; 通过在交叉处理方向上感测图像的光学特性来产生图像的轮廓数据; 调整所述标记引擎的至少一个控制致动器,以将所述交叉处理方向上的后续标记图像的特性移动到至少目标值; 以及产生空间变化的色调再现曲线,以将后续标记图像的特性平滑到目标值。

    Method and apparatus for characterizing the flowability of toner particles
    48.
    发明授权
    Method and apparatus for characterizing the flowability of toner particles 有权
    用于表征调色剂颗粒的流动性的方法和装置

    公开(公告)号:US08544351B2

    公开(公告)日:2013-10-01

    申请号:US12791901

    申请日:2010-06-02

    申请人: Michael F. Zona

    发明人: Michael F. Zona

    IPC分类号: G01N33/00 G01N11/02

    摘要: Disclosed are methods and apparatuses for characterizing the flowability of a dry powder, and particularly for use with toner particles. The methods and apparatuses use an optionally transparent or semi-transparent cylindrical container. When the container is partially filled with dry powder, the dry powder is aerated and torque measurements are then taken while rotating the container to determine the flowability of the dry powder.

    摘要翻译: 公开了用于表征干粉的流动性,特别是用于调色剂颗粒的方法和装置。 所述方法和装置使用任选透明或半透明的圆柱形容器。 当容器部分地填充有干粉末时,干燥的粉末被充气,然后在旋转容器时进行扭矩测量以确定干粉的流动性。

    Compact, long life charging device
    49.
    发明授权
    Compact, long life charging device 有权
    紧凑,长寿命的充电装置

    公开(公告)号:US08135309B2

    公开(公告)日:2012-03-13

    申请号:US12472811

    申请日:2009-05-27

    IPC分类号: G03G15/20

    摘要: A coronode charging device includes a support member, a filament, an adjustment mechanism and a voltage source. The lament is disposed along the support member in a configuration that creates a plurality of active regions and a plurality of inactive regions of the filament. The active regions are simultaneously positionable adjacent the photoreceptor. The inactive regions may be farther from the photoreceptor than the active regions. The adjustment mechanism moves the filament such that portions of the filament that correspond to the active regions are moved to positions that correspond to the inactive regions, and some portions of the filament that were in the inactive regions are moved to positions that correspond to the active regions. This operations extends the life of the coronode charging device.

    摘要翻译: 冠状体充电装置包括支撑构件,灯丝,调节机构和电压源。 该纱线沿着支撑构件设置成以形成多个有源区域和多个无效区域的构造。 有源区域可以与感光体相邻定位。 非活性区域可以比活性区域远离感光体。 调节机构使细丝移动使得与活性区域相对应的细丝部分移动到与非活性区域对应的位置,并且处于非活性区域的丝线的一些部分被移动到与活性区域对应的位置 地区。 该操作延长了冠状体充电装置的使用寿命。

    APPARATUS AND METHOD FOR SENSING PHOTORECEPTOR FAILURE IN A XEROGRAPHIC PRINTING APPARATUS
    50.
    发明申请
    APPARATUS AND METHOD FOR SENSING PHOTORECEPTOR FAILURE IN A XEROGRAPHIC PRINTING APPARATUS 有权
    用于在XEROGRAPHIC PRINTING APPARATUS中感测光电转换器故障的装置和方法

    公开(公告)号:US20100329701A1

    公开(公告)日:2010-12-30

    申请号:US12490842

    申请日:2009-06-24

    IPC分类号: G03G15/00

    CPC分类号: G03G15/5033 G03G21/0094

    摘要: An apparatus (100) and method (200) that senses photoreceptor failure in a xerographic printing apparatus is disclosed. The xerographic printing apparatus can include a rotatable photoreceptor (110) having a photoreceptor surface (111), a cleaning device (124) for removing marking material from the photoreceptor, and a printing apparatus controller (150) that controls operations of the xerographic printing apparatus. The method can include charging (220) the photoreceptor surface to a fixed voltage. The method can include discharging (230) at least a portion of the charged photoreceptor surface to an exposed voltage. The method can include developing (240) the discharged portion of the photoreceptor surface by providing a cleaning field between the charged photoreceptor surface fixed voltage and a developing bias voltage. The method can include reducing (250) the cleaning field. The method can include generating (260) a developed image on the photoreceptor using the reduced cleaning field. The method can include scanning (270) the developed image after reducing the cleaning field, where the developed image can be scanned using a sensor to generate a scanned image.

    摘要翻译: 公开了一种在静电印刷装置中感测光感受器故障的装置(100)和方法(200)。 静电印刷装置可以包括具有感光体表面(111)的可旋转感光体(110),用于从感光体去除标记材料的清洁装置(124),以及控制静电印刷装置的操作的打印装置控制器 。 该方法可以包括将感光体表面充电(220)至固定电压。 该方法可以包括将带电感光体表面的至少一部分放电(230)至暴露的电压。 该方法可以包括通过在带电感光体表面固定电压和显影偏压之间提供清洁场来显影(240)感光体表面的排出部分。 该方法可以包括减少(250)清洁场。 该方法可以包括使用减小的清洁区域在感光体上产生(260)显影图像。 该方法可以包括在减少清洁区域之后扫描(270)显影图像,其中可以使用传感器扫描显影图像以产生扫描图像。