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1. 发明授权

US07747184B2 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
标题翻译：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
申请人： Christopher Auguste DiRubio , Michael F. Zona , Charles Anthony Radulski , Aaron Michael Burry , Palghat Ramesh
发明人： Christopher Auguste DiRubio , Michael F. Zona , Charles Anthony Radulski , Aaron Michael Burry , Palghat Ramesh
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。

2. 发明授权

US07715742B2 Photoconductor life through active control of charger settings 有权
标题翻译：感光鼓寿命通过主动控制充电器设置
公开(公告)号：US07715742B2
公开(公告)日：2010-05-11
申请号：US11644276
申请日：2006-12-22
申请人： Aaron Michael Burry , Christopher Auguste DiRubio , Paul Charles Julien , Eric Scott Hamby , Palghat Ramesh , Michael F. Zona , William C. Dean
发明人： Aaron Michael Burry , Christopher Auguste DiRubio , Paul Charles Julien , Eric Scott Hamby , Palghat Ramesh , Michael F. Zona , William C. Dean
IPC分类号： G03G15/02 , G03G15/00
CPC分类号： G03G15/55 , G03G15/0266 , G03G15/5062
摘要： Xerographic photoreceptor life is improved while maintaining output print quality by adjusting the AC charging actuator of a xerographic machine to a point at which photoconductor life is optimized while maintaining output print quality. Where the actuator is voltage, the actuator is set a predetermined amount above the knee voltage of the photoreceptor surface potential versus peak-to-peak voltage curve, which is determined during operation of the machine. Instead of determining the knee voltage, calibration sheets can be generated for various values of the actuator, the best sheet with the least possible actuator value is selected, and the AC charging actuator is set to the value corresponding to the best sheet. The sheets can be evaluated by a user, or an optical array sensor can be used to scan the sheets so that the controller can compare the sheets to stored criteria to automatically select the best sheet and set the actuator. Alternatively, the optical array sensor can scan calibration images directly from the intermediate transfer belt or other image bearing member, thus eliminating the use of paper for calibration.
摘要翻译：通过将静电复印机的AC充电致动器调整到优化光电导体寿命的时间点，同时保持输出打印质量，可以提高静电感光效果，同时保持输出打印质量。在致动器是电压的情况下，将致动器设置在高于感光体表面电位的拐点电压与在峰值到峰值电压曲线之间的预定量，这是在机器操作期间确定的。代替确定拐点电压，可以为执行器的各种值生成校准页，选择具有尽可能小的执行器值的最佳板，并将AC充电致动器设置为对应于最佳板的值。纸张可以由用户评估，或者可以使用光学阵列传感器来扫描纸张，使得控制器可以将纸张与存储的标准进行比较以自动选择最佳纸张并设置致动器。或者，光学阵列传感器可以直接从中间转印带或其他图像承载部件扫描校准图像，从而消除使用纸进行校准。

3. 发明申请

US20080152371A1 Photoconductor life through active control of charger settings 有权
标题翻译：感光鼓寿命通过主动控制充电器设置
公开(公告)号：US20080152371A1
公开(公告)日：2008-06-26
申请号：US11644276
申请日：2006-12-22
申请人： Aaron Michael Burry , Christopher Auguste DiRubio , Michael F. Zona , Paul Charles Julien , Eric Scott Hamby , Palghat Ramesh , William C. Dean
发明人： Aaron Michael Burry , Christopher Auguste DiRubio , Michael F. Zona , Paul Charles Julien , Eric Scott Hamby , Palghat Ramesh , William C. Dean
IPC分类号： G03G15/02
CPC分类号： G03G15/55 , G03G15/0266 , G03G15/5062
摘要： Xerographic photoreceptor life is improved while maintaining output print quality by adjusting the AC charging actuator of a xerographic machine to a point at which photoconductor life is optimized while maintaining output print quality. Where the actuator is voltage, the actuator is set a predetermined amount above the knee voltage of the photoreceptor surface potential versus peak-to-peak voltage curve, which is determined during operation of the machine. Instead of determining the knee voltage, calibration sheets can be generated for various values of the actuator, the best sheet with the least possible actuator value is selected, and the AC charging actuator is set to the value corresponding to the best sheet. The sheets can be evaluated by a user, or an optical array sensor can be used to scan the sheets so that the controller can compare the sheets to stored criteria to automatically select the best sheet and set the actuator. Alternatively, the optical array sensor can scan calibration images directly from the intermediate transfer belt or other image bearing member, thus eliminating the use of paper for calibration.
摘要翻译：通过将静电复印机的AC充电致动器调整到优化光电导体寿命的时间点，同时保持输出打印质量，可以提高静电感光效果，同时保持输出打印质量。在致动器是电压的情况下，将致动器设定在高于感光体表面电位的拐点电压与在峰值到峰值电压曲线之间的预定量，这是在机器操作期间确定的。代替确定拐点电压，可以为执行器的各种值生成校准页，选择具有尽可能小的执行器值的最佳板，并将AC充电致动器设置为对应于最佳板的值。纸张可以由用户评估，或者可以使用光学阵列传感器来扫描纸张，使得控制器可以将纸张与存储的标准进行比较以自动选择最佳纸张并设置致动器。或者，光学阵列传感器可以直接从中间转印带或其他图像承载部件扫描校准图像，从而消除使用纸进行校准。

4. 发明申请

US20080152369A1 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
标题翻译：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：US20080152369A1
公开(公告)日：2008-06-26
申请号：US11644277
申请日：2006-12-22
申请人： Christopher Augusto DiRubio , Michael F. Zona , Charles Anthony Radulski , Aaron Michael Burry , Palghat Ramesh
发明人： Christopher Augusto DiRubio , Michael F. Zona , Charles Anthony Radulski , Aaron Michael Burry , Palghat Ramesh
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。

5. 发明授权

US08150653B2 Toner mass sensing precision by normalization to substrate reflectance and adjusted for toner mass level 有权
标题翻译：调色剂质量检测精度通过归一化到基板反射率并调节调色剂质量水平
公开(公告)号：US08150653B2
公开(公告)日：2012-04-03
申请号：US12541702
申请日：2009-08-14
申请人： Aaron Michael Burry , Eric Michael Gross , Palghat Ramesh , Robert E. Rosdahl, Jr.
发明人： Aaron Michael Burry , Eric Michael Gross , Palghat Ramesh , Robert E. Rosdahl, Jr.
IPC分类号： G06F17/18 , G01J3/46
CPC分类号： H04N1/407 , G03G15/5062 , G03G2215/00067 , H04N1/00015 , H04N1/00031 , H04N1/00063 , H04N1/00087 , H04N1/40006 , H04N2201/0082
摘要： A method of normalizing sensor readings includes receiving a reading from a sensor configured to detect light reflected from a substrate; and normalizing the sensor reading based on a function of sensed mass level on the substrate. A processor for implementing the method is also provided.
摘要翻译：对传感器读数进行归一化的方法包括从被配置为检测从基板反射的光的传感器接收读数; 以及基于所述基板上检测到的质量水平的函数来对所述传感器读数进行归一化。还提供了一种用于实现该方法的处理器。

6. 发明申请

US20110040524A1 TONER MASS SENSING PRECISION BY NORMALIZATION TO SUBSTRATE REFLECTANCE AND ADJUSTED FOR TONER MASS LEVEL 有权
标题翻译：通过正规化对基底反射和调整色调质量的质量感测精度
公开(公告)号：US20110040524A1
公开(公告)日：2011-02-17
申请号：US12541702
申请日：2009-08-14
申请人： Aaron Michael BURRY , Eric Michael Gross , Palghat Ramesh , Robert E. Rosdahl, JR.
发明人： Aaron Michael BURRY , Eric Michael Gross , Palghat Ramesh , Robert E. Rosdahl, JR.
IPC分类号： G06F17/18
CPC分类号： H04N1/407 , G03G15/5062 , G03G2215/00067 , H04N1/00015 , H04N1/00031 , H04N1/00063 , H04N1/00087 , H04N1/40006 , H04N2201/0082
摘要： A method of normalizing sensor readings includes receiving a reading from a sensor configured to detect light reflected from a substrate; and normalizing the sensor reading based on a function of sensed mass level on the substrate. A processor for implementing the method is also provided.
摘要翻译：对传感器读数进行归一化的方法包括从被配置为检测从基板反射的光的传感器接收读数; 以及基于所述基板上检测到的质量水平的函数来对所述传感器读数进行归一化。还提供了一种用于实现该方法的处理器。

7. 发明申请

US20070003324A1 Method and system for improved implementation of maintenance routines in a productive system 有权
标题翻译：在生产系统中改进维护程序实施的方法和系统
公开(公告)号：US20070003324A1
公开(公告)日：2007-01-04
申请号：US11174376
申请日：2005-06-30
申请人： Eric Gross , Palghat Ramesh , Barrett Gady , Eric Hamby
发明人： Eric Gross , Palghat Ramesh , Barrett Gady , Eric Hamby
IPC分类号： G03G15/08
CPC分类号： G03G15/0844
摘要： The presently described embodiments relate to improving system productivity where maintenance purge routines are required through use of a digital front end (DFE) job scheduler. This approach utilizes knowledge of future jobs to maximize productivity. So, even if a low coverage area job is being processed, and a purge routine is scheduled, the purge routine may be avoided. This is achieved by projecting the system evolution over a future time horizon and determining the schedule of toner purge events (a non productive dead cycle) to minimize a cost function that penalizes the purge event (dead cycling and material loss should be minimized) and the deviation of average toner resident time in the sump from some desired set point of range. In this regard, knowledge that a high coverage area job is downstream and average toner residient time may be advantageously used to effectively perform the purge itself while in productive mode. The system gains knowledge of whether low coverage area jobs or high coverage area jobs are pending by using information stored within the print job file (e.g., a page description language job file). For example, a page description language (PDL) file typically includes information on the area coverage trajectory over time. This will allow a system to generate a predictive model which can constantly recalculate statistics based on knowledge of currently running jobs, new jobs or a change in customer criteria.
摘要翻译：目前描述的实施例涉及通过使用数字前端（DFE）作业调度器来提高需要维护清除程序的系统生产率。这种方法利用未来工作的知识来最大限度地提高生产率。因此，即使正在处理低覆盖面积的作业，并且排除了清除程序，可以避免清除程序。这是通过在未来的时间范围内投射系统进化并确定调色剂清除事件（非生产性死循环）的时间表来实现的，以最小化惩罚清除事件的成本函数（死循环和材料损失应被最小化），并且水槽中的平均调色剂驻留时间与某个所需的设定范围的偏差。在这方面，可以有利地使用高覆盖面积作业在下游和平均调色剂滞留时间的知识来在生产模式下有效地执行清洗本身。通过使用存储在打印作业文件内的信息（例如，页面描述语言作业文件），系统获得关于低覆盖面积作业或高覆盖面积作业是否待定的知识。例如，页面描述语言（PDL）文件通常包括随时间的区域覆盖轨迹的信息。这将允许系统生成预测模型，该预测模型可以基于当前运行的作业，新作业或客户标准变化的知识不断地重新计算统计数据。

8. 发明申请

US20060222382A1 Minimum replenisher dispense strategy for improved xerographic stability 审中-公开
标题翻译：最小补充剂分配策略，提高静电印迹稳定性
公开(公告)号：US20060222382A1
公开(公告)日：2006-10-05
申请号：US11390731
申请日：2006-03-28
申请人： Barrett Gady , Eric Gross , Palghat Ramesh
发明人： Barrett Gady , Eric Gross , Palghat Ramesh
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0849 , G03G15/0865 , G03G15/0868
摘要： An electrostatic printing machine having a development station having a toner dispenser for dispensing toner in the development station and wherein the electrostatic printing machine employs a method for improving xerographic stability of condition the development station, including reviewing a print job comprising job images for toner usage; calculating a dispense rate base on the toner usage, print job attributes, and sensing toner quantity that is present; comparing the calculated dispense rate to a predefined minimum dispense rate; and if the calculated dispense rate is less than the predefined minimum dispense rate, setting the toner dispenser to the predefined minimum dispense rate; the setting includes scheduling a detone process if the toner mass in the development station exceeds a predefined threshold value.
摘要翻译：一种具有显影台的静电印刷机，具有用于在显影台中分配调色剂的调色剂分配器，并且其中所述静电印刷机采用提高显影台状态的静电复印稳定性的方法，包括检查包括用于调色剂使用的作业图像的打印作业; 基于调色剂使用，打印作业属性和感测存在的调色剂量来计算分配率; 将计算的分配速率与预定义的最小分配速率进行比较; 并且如果所计算的分配率小于预定的最小分配速率，则将调色剂分配器设置为预定的最小分配速率; 如果显影站中的调色剂质量超过预定义的阈值，则该设置包括排列检测过程。

9. 发明授权

US08355639B2 Method for color stability diagnostics based on correlation analysis 有权
标题翻译：基于相关分析的颜色稳定性诊断方法
公开(公告)号：US08355639B2
公开(公告)日：2013-01-15
申请号：US12877709
申请日：2010-09-08
申请人： Peter Paul , Palghat Ramesh , Eric Michael Gross
发明人： Peter Paul , Palghat Ramesh , Eric Michael Gross
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/5062 , G03G2215/0132
摘要： A diagnostic method for color stability in an image printing system includes printing a test pattern onto output media; measuring, during the printing of the test pattern, an image of the test pattern on an image transfer surface using one or more image transfer surface sensors to obtain one or more image transfer surface signals; measuring a printed image of the test pattern on the output media using a printed image sensor to obtain a printed image signal; calculating correlation functions for the one or more image transfer surface signals and the printed image signal; and analyzing the correlation functions for the one or more image transfer surface signals and the printed image signal to identify a subsystem in the image printing system that causes variations in color within the plurality of prints of the test pattern.
摘要翻译：图像打印系统中的颜色稳定性的诊断方法包括将测试图案打印到输出介质上; 在打印测试图形期间，使用一个或多个图像转印表面传感器测量图像转印表面上的测试图案的图像，以获得一个或多个图像转印表面信号; 使用打印的图像传感器测量输出介质上的测试图案的打印图像以获得打印的图像信号; 计算一个或多个图像传送表面信号和打印的图像信号的相关函数; 以及分析所述一个或多个图像转印表面信号和所述打印图像信号的相关函数，以识别所述图像打印系统中引起所述测试图案的所述多个打印中的颜色变化的子系统。

10. 发明授权

US08351080B2 Least squares based coherent multipage analysis of printer banding for diagnostics and compensation 有权
标题翻译：用于诊断和补偿的打印机条带的基于最小二乘法的相干多页面分析
公开(公告)号：US08351080B2
公开(公告)日：2013-01-08
申请号：US12555308
申请日：2009-09-08
申请人： Palghat Ramesh , Peter Paul
发明人： Palghat Ramesh , Peter Paul
IPC分类号： G06F15/00
CPC分类号： H04N1/58
摘要： A method, system, and computer program product for estimating a banding profile in an image printing system is disclosed. The method includes obtaining image data across multiple measurement intervals by one or more sensors; combining the image data with timing information into a coherent signal by a processor; estimating periodic and aperiodic components of the coherent signal using least squares estimation by the processor, wherein the periodic component represents a banding profile; and wherein at least the periodic component is used to generate an output.
摘要翻译：公开了一种用于估计图像打印系统中的条带轮廓的方法，系统和计算机程序产品。该方法包括通过一个或多个传感器跨多个测量间隔获得图像数据; 通过处理器将图像数据与定时信息组合成相干信号; 使用所述处理器的最小二乘估计来估计所述相干信号的周期性和非周期分量，其中所述周期性分量表示带状分布; 并且其中至少所述周期性分量用于产生输出。

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