Photoconductor life through active control of charger settings
    1.
    发明授权
    Photoconductor life through active control of charger settings 有权
    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

    IPC分类号: G03G15/02 G03G15/00

    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。

    Photoconductor life through active control of charger settings
    3.
    发明申请
    Photoconductor life through active control of charger settings 有权
    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

    IPC分类号: G03G15/02

    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。

    Method of using biased charging/transfer roller as in-situ voltmeter and photoreceptor thickness detector and method of adjusting xerographic process with results
    5.
    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。