Leakage current compensation for high voltage transformers
    11.
    发明授权
    Leakage current compensation for high voltage transformers 有权
    高压变压器泄漏电流补偿

    公开(公告)号:US08102629B2

    公开(公告)日:2012-01-24

    申请号:US12403037

    申请日:2009-03-12

    IPC分类号: H02H9/02

    CPC分类号: G01R31/025 G01R19/0092

    摘要: A method and system for measuring and compensating for a leakage current in a high voltage transformer. Such a method and/or system include the use of a primary winding and a secondary winding, which can be provided on a core of a soft-magnetic material. A current transformer can be placed about the leads to both the terminals of the primary winding. The current transformer can be utilized to reliably measure the leakage current flowing from the secondary winding to the primary winding through one or more amplifiers to a ground terminal. The leakage current flows back to the transformer secondary winding through a low-side current sense resistor. The total current monitor signal can be generated by the low-side current sense resistor and the leakage current measured by the current transformer is vector-subtracted from the total current monitor signal. The result is a current monitor signal fully representative of the high voltage transformer's actual load current.

    摘要翻译: 一种测量和补偿高压变压器漏电流的方法和系统。 这种方法和/或系统包括使用可以设置在软磁材料的芯上的初级绕组和次级绕组。 电流互感器可以围绕引线放置在初级绕组的两端。 电流互感器可用于可靠地测量从次级绕组流向初级绕组的漏电流通过一个或多个放大器到接地端子。 漏电流通过低端电流检测电阻流回变压器次级绕组。 总电流监测信号可以由低边电流检测电阻产生,并且由电流互感器测量的漏电流从总电流监测信号向量减去。 结果是电流监测信号完全代表了高压变压器的实际负载电流。

    LEAKAGE CURRENT COMPENSATION FOR HIGH VOLTAGE TRANSFORMERS
    12.
    发明申请
    LEAKAGE CURRENT COMPENSATION FOR HIGH VOLTAGE TRANSFORMERS 有权
    高压变压器泄漏电流补偿

    公开(公告)号:US20100231229A1

    公开(公告)日:2010-09-16

    申请号:US12403037

    申请日:2009-03-12

    IPC分类号: G01R31/02

    CPC分类号: G01R31/025 G01R19/0092

    摘要: A method and system for measuring and compensating for a leakage current in a high voltage transformer. Such a method and/or system include the use of a primary winding and a secondary winding, which can be provided on a core of a soft-magnetic material. A current transformer can be placed about the leads to both the terminals of the primary winding. The current transformer can be utilized to reliably measure the leakage current flowing from the secondary winding to the primary winding through one or more amplifiers to a ground terminal. The leakage current flows back to the transformer secondary winding through a low-side current sense resistor. The total current monitor signal can be generated by the low-side current sense resistor and the leakage current measured by the current transformer is vector-subtracted from the total current monitor signal. The result is a current monitor signal fully representative of the high voltage transformer's actual load current.

    摘要翻译: 一种测量和补偿高压变压器漏电流的方法和系统。 这种方法和/或系统包括使用可以设置在软磁材料的芯上的初级绕组和次级绕组。 电流互感器可以围绕引线放置在初级绕组的两端。 电流互感器可用于可靠地测量从次级绕组流向初级绕组的漏电流通过一个或多个放大器到接地端子。 漏电流通过低端电流检测电阻流回变压器次级绕组。 总电流监测信号可以由低边电流检测电阻产生,并且由电流互感器测量的漏电流从总电流监测信号向量减去。 结果是电流监测信号完全代表了高压变压器的实际负载电流。

    Closed loop control function for corona device
    13.
    发明授权
    Closed loop control function for corona device 失效
    电晕装置的闭环控制功能

    公开(公告)号:US06928250B1

    公开(公告)日:2005-08-09

    申请号:US10832605

    申请日:2004-04-27

    IPC分类号: G03G15/00 G03G15/16

    CPC分类号: G03G15/1645 G03G2215/027

    摘要: An electrophotographic printing machine of the type having a latent image recorded on an imaging member wherein said latent image is developed and transferred to a media substrate during successive printing cycles of successive print jobs, including a charging device for producing a voltage potential on the media substrate to transfer the developed latent image to the media substrate, said charging device including a coronode member and shield; a first voltage supply for apply a shield voltage to said shield; a second voltage supply for applying a wire voltage to said coronode member; a voltage monitor for measuring the voltage on the shield, said voltage monitor periodically polling the voltage during a cycle of a print job and generating a voltage measured signal as a function thereof; controller, responsive to a media type of each media substrate and said voltage monitor, for adjusting said wire voltage to said coronode member in respect to said shield voltage to said shield to compensate for process impedance as said media substrate passes under said charging device to obtained desirable image transfer.

    摘要翻译: 一种具有记录在成像构件上的潜像的电子照相印刷机,其中所述潜像在连续打印作业的连续打印循环期间显影并转印到介质基板,包括用于在介质基板上产生电压电位的充电装置 将显影的潜像转印到介质基板,所述充电装置包括冠状构件和屏蔽件; 用于向所述屏蔽施加屏蔽电压的第一电压源; 用于向所述冠状构件施加电线电压的第二电压源; 电压监视器,用于测量屏蔽上的电压,所述电压监视器在打印作业的周期期间周期性地轮询电压并产生作为其功能的电压测量信号; 控制器,响应于每个介质基板和所述电压监视器的介质类型,用于相对于所述屏蔽电压的所述屏蔽电压调整所述网络电压的所述电线电压,以补偿当所述介质基板在所述充电装置下通过时获得的过程阻抗,以获得 理想的图像传输。

    Universal module for enabling measurements on color printers
    16.
    发明授权
    Universal module for enabling measurements on color printers 有权
    用于在彩色打印机上进行测量的通用模块

    公开(公告)号:US07957657B2

    公开(公告)日:2011-06-07

    申请号:US12369852

    申请日:2009-02-12

    IPC分类号: G03G15/00

    摘要: A measurement module for a printer generally includes a page diverter mechanism configured to selectively divert a sheet of media from a main media path to a module media path; a rotating drum configured to receive the media from the module media path and to affix the media on an outer surface of the drum; a measuring device spaced adjacent to the drum and configured to measure as aspect of the media affixed to the surface of the drum; and a sheet transport configured to remove the media from the drum. According to one embodiment, the module may include a drum with an electrostatic hold-down mechanism that captures a sheet and an axially translating measuring device that is configured to read the entire surface as the drum rotates. The measurement module also allows the printed media to cool to eliminate problems with color measurements due to thermo chromaticity.

    摘要翻译: 用于打印机的测量模块通常包括页面转向器机构,其被配置为选择性地将媒体从主媒体路径转移到模块媒体路径; 旋转鼓,其构造成从所述模块介质路径接收所述介质,并将所述介质固定在所述滚筒的外表面上; 测量装置,其与所述滚筒相邻地间隔开并且被配置为测量固定到所述滚筒表面的所述介质的方面; 以及被配置为从所述滚筒移除所述介质的片材输送器。 根据一个实施例,模块可以包括具有捕获片材的静电压紧机构的滚筒和被构造成在滚筒旋转时读取整个表面的轴向平移测量装置。 测量模块还允许打印介质冷却,以消除由于热色度引起的颜色测量的问题。

    Method and apparatus for generating a spread spectrum signal in a printer power supply unit
    17.
    发明授权
    Method and apparatus for generating a spread spectrum signal in a printer power supply unit 有权
    用于在打印机电源单元中产生扩频信号的方法和装置

    公开(公告)号:US07933532B2

    公开(公告)日:2011-04-26

    申请号:US12118215

    申请日:2008-05-09

    IPC分类号: G03G15/00

    CPC分类号: G03G15/0283 G03G2215/026

    摘要: A method and apparatus that generates a spread spectrum signal in a printer power supply unit is disclosed. The method may include receiving an enable signal to power on the printer power supply unit, generating an initial power signal for the printer power supply unit based on the signal received from the power supply controller, the initial power signal being generated in a predetermined frequency range around a predetermined center frequency value, powering on the printer power supply unit using the generated initial power signal, repeatedly updating the initial power signal, wherein the updated power signal has a frequency value in the predetermined frequency range and the predetermined center frequency value is maintained, and powering the printer power supply unit using the updated power signal.

    摘要翻译: 公开了一种在打印机电源单元中产生扩频信号的方法和装置。 该方法可以包括接收使能信号以对打印机电源单元供电,基于从电源控制器接收的信号产生用于打印机电源单元的初始功率信号,初始功率信号在预定频率范围内产生 围绕预定的中心频率值,使用所产生的初始功率信号对打印机电源单元供电,重复更新初始功率信号,其中更新的功率信号具有预定频率范围内的频率值并且保持预定的中心频率值 ,并使用更新的电源信号为打印机电源单元供电。

    UNIVERSAL MODULE FOR ENABLING MEASUREMENTS ON COLOR PRINTERS
    18.
    发明申请
    UNIVERSAL MODULE FOR ENABLING MEASUREMENTS ON COLOR PRINTERS 有权
    通用模块,用于在彩色打印机上实现测量

    公开(公告)号:US20100201061A1

    公开(公告)日:2010-08-12

    申请号:US12369852

    申请日:2009-02-12

    IPC分类号: B65H5/26

    摘要: A measurement module for a printer generally includes a page diverter mechanism configured to selectively divert a sheet of media from a main media path to a module media path; a rotating drum configured to receive the media from the module media path and to affix the media on an outer surface of the drum; a measuring device spaced adjacent to the drum and configured to measure as aspect of the media affixed to the surface of the drum; and a sheet transport configured to remove the media from the drum. According to one embodiment, the module may include a drum with an electrostatic hold-down mechanism that captures a sheet and an axially translating measuring device that is configured to read the entire surface as the drum rotates. The measurement module also allows the printed media to cool to eliminate problems with color measurements due to thermo chromaticity.

    摘要翻译: 用于打印机的测量模块通常包括页面转向器机构,其被配置为选择性地将媒体从主媒体路径转移到模块媒体路径; 旋转鼓,其构造成从所述模块介质路径接收所述介质,并将所述介质固定在所述滚筒的外表面上; 测量装置,其与所述滚筒相邻地间隔开并且被配置为测量固定到所述滚筒表面的介质的方面; 以及被配置为从所述滚筒移除所述介质的片材输送器。 根据一个实施例,模块可以包括具有捕获片材的静电压紧机构的滚筒和被构造成在滚筒旋转时读取整个表面的轴向平移测量装置。 测量模块还允许打印介质冷却,以消除由于热色度引起的颜色测量的问题。

    Method of determining a resistive current
    19.
    发明授权
    Method of determining a resistive current 失效
    确定电阻电流的方法

    公开(公告)号:US06777959B2

    公开(公告)日:2004-08-17

    申请号:US10355564

    申请日:2003-01-30

    申请人: Jerry F. Adams

    发明人: Jerry F. Adams

    IPC分类号: G01R2708

    CPC分类号: G01R19/0092

    摘要: A xerographic charging device corona current is determined by forming a first signal across a sense resistor in series with the charging device power supply, forming a second signal using a resistive voltage divider network across the power supply, and forming a third signal using a resistor-capacitor charging circuit across the power supply, and then processing the first, second and third signals to form an output signal that is based on the corona current.

    摘要翻译: 静电复印充电装置电晕电流通过与充电装置电源串联形成检测电阻器上的第一信号,使用跨电源的电阻分压器网络形成第二信号,并且使用电阻 - 电容器充电电路跨越电源,然后处理第一,第二和第三信号以形成基于电晕电流的输出信号。