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1.发明申请公开(公告)号：US20120051759A1
公开(公告)日：2012-03-01
申请号：US12869798
申请日：2010-08-27
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0141
摘要： A piezoelectric crystal adjacent to a development member in an electrophotographic printer has an electrode on it facing the development member. An AC bias is applied across the crystal while a DC bias is applied between the electrode and the development member to measure toner-mass deposition rate. An AC bias is then applied between the electrode and the development member to measure developer flow rate. The toner concentration of the developer is determined using the measured toner mass-deposition rate and developer flow rate.
摘要翻译： 与电子照相打印机中的显影元件相邻的压电晶体具有面向显影元件的电极。 在晶体之间施加AC偏压，同时在电极和显影元件之间施加DC偏压以测量调色剂 - 质量沉积速率。 然后在电极和显影元件之间施加AC偏压以测量显影剂流速。 使用测量的调色剂质量沉积速率和显影剂流速来确定显影剂的调色剂浓度。
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2.发明授权公开(公告)号：US08369717B2
公开(公告)日：2013-02-05
申请号：US12869798
申请日：2010-08-27
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0141
摘要： A piezoelectric crystal adjacent to a development member in an electrophotographic printer has an electrode on it facing the development member. An AC bias is applied across the crystal while a DC bias is applied between the electrode and the development member to measure toner-mass deposition rate. An AC bias is then applied between the electrode and the development member to measure developer flow rate. The toner concentration of the developer is determined using the measured toner mass-deposition rate and developer flow rate.
摘要翻译： 与电子照相打印机中的显影元件相邻的压电晶体具有面向显影元件的电极。 在晶体之间施加AC偏压，同时在电极和显影元件之间施加DC偏压以测量调色剂 - 质量沉积速率。 然后在电极和显影元件之间施加AC偏压以测量显影剂流速。 使用测量的调色剂质量沉积速率和显影剂流速来确定显影剂的调色剂浓度。
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公开(公告)号：US20130011154A1
公开(公告)日：2013-01-10
申请号：US13616378
申请日：2012-09-14
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0634
摘要： Developer density in an electrophotographic system is measured. The developer includes toner particles and magnetic carrier particles. First and second mutually-insulated electrodes define a working volume between them through which developer passes without contacting the first electrode. An AC voltage or current source is connected to the electrodes. An inductor is connected in series with a voltage source, or an inductor is provided in parallel with a current source. The voltage or current is applied and corresponding current or voltage across the electrodes is measured. The density of the developer in the working volume is automatically determined using a processor responsive to the measured current or voltage and the applied bias.
摘要翻译： 测量电子照相系统中的显影剂密度。 显影剂包括调色剂颗粒和磁性载体颗粒。 第一和第二相互绝缘的电极限定了它们之间的工作体积，显影剂通过该工作体积而不接触第一电极。 AC电压或电流源连接到电极。 电感器与电压源串联连接，或者电感器与电流源并联。 施加电压或电流，并测量电极两端的对应电流或电压。 使用响应于测量的电流或电压以及所施加的偏压的处理器来自动确定显影剂在工作体积中的密度。
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公开(公告)号：US08380091B2
公开(公告)日：2013-02-19
申请号：US12847192
申请日：2010-07-30
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0634
摘要： Developer density is measured in an electrophotographic system. First and second electrodes are disposed to define a working volume between them through which developer passes without contacting the first electrode, wherein the electrodes are electrically insulated from each other by the working volume. One terminal of an AC voltage (current) source having a selected frequency is connected to one of the electrodes. An inductor is connected in series (parallel) with the voltage source, so that the source provides the AC bias (current) across the electrodes through (across) the inductor. The AC is applied and the current (voltage) across the electrodes is measured. The density of the developer in the working volume is automatically determined using a processor responsive to the measured current (voltage) and the applied bias (current).
摘要翻译： 显影剂密度在电照相系统中测量。 第一和第二电极设置成限定它们之间的工作体积，显影剂通过该工作体积而不接触第一电极，其中电极通过工作体积彼此电绝缘。 具有选定频率的AC电压（电流）源的一个端子连接到一个电极。 电感器与电压源串联（并联），从而源极通过（穿过）电感器在电极之间提供交流偏压（电流）。 施加AC并测量电极两端的电流（电压）。 使用响应于测量的电流（电压）和施加的偏压（电流）的处理器自动确定工作容积中的显影剂的密度。
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公开(公告)号：US08358942B2
公开(公告)日：2013-01-22
申请号：US12847158
申请日：2010-07-30
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0634
摘要： Developer toner concentration in an electrophotographic system is measured. Two sensors, one before and one after the toning zone in the direction of rotation of the development member, each include respective electrodes that form a respective capacitance between the respective electrode and the development member. A voltage source selectively applies respective AC biases across the sensors and the respective currents across the sensors are measured. A controller causes an electrostatic latent image to be produced on the photoreceptor and causes the development member to rotate and the photoreceptor to move. While the development member is rotating, the processor receives the measured currents and computes toner concentration using the respective received currents and the pixel data. The developer flow rate can be adjusted, or toner added to the developer, in response to the determined toner concentration.
摘要翻译： 测量电子照相系统中的显影剂调色剂浓度。 两个传感器，一个在显影构件的旋转方向之前和之后的调色区域之间，每个传感器各自包括在各个电极和显影构件之间形成相应电容的相应电极。 电压源选择性地在传感器上施加相应的AC偏压，并测量跨传感器的相应电流。 控制器导致在感光体上产生静电潜像，并使显影部件旋转并使感光体移动。 当开发构件旋转时，处理器接收测量的电流并使用相应的接收电流和像素数据计算调色剂浓度。 响应于确定的调色剂浓度，可以调节显影剂流速或添加到显影剂中的调色剂。
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公开(公告)号：US20120027432A1
公开(公告)日：2012-02-02
申请号：US12847175
申请日：2010-07-30
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0634
摘要： Developer flow rate over a rotatable development member in an electrophotographic system is measured. An electrode and the development member define a capacitive working volume between them through which developer moves. A voltage source electrically connected to the electrode and the development member selectively applies an AC bias across the working volume, and a meter measures the currents across the working volume while the bias is applied. A controller causes the development member to stop supplying toner to the photoreceptor, and to rotate. While the development member is rotating, the controller records the current measured by the meter. Developer flow rate is computed using the measured current. The developer flow rate can be adjusted in response to the computed flow rate.
摘要翻译： 测量电子照相系统中可旋转显影元件上的显影剂流速。 电极和显影构件在显影剂移动通过它们之间限定电容工作体积。 电连接到电极和显影构件的电压源选择性地在工作容积上施加AC偏压，并且在施加偏压时，电表测量跨过工作容积的电流。 控制器使得显影构件停止向感光体供应调色剂并旋转。 当开发构件旋转时，控制器记录由仪表测量的电流。 显影剂流量使用测量电流计算。 显影剂流速可以根据计算出的流量进行调节。
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公开(公告)号：US20120070199A1
公开(公告)日：2012-03-22
申请号：US12887805
申请日：2010-09-22
申请人： Kenneth J. Brown , Donald S. Rimai
发明人： Kenneth J. Brown , Donald S. Rimai
IPC分类号： G03G15/09
CPC分类号： G03G21/0047
摘要： A printer comprising a developer station for holding a supply of carrier particles, a rotating member which accumulates carrier particles during its rotation, a scavenger for removing the accumulated particles from the rotating member during the rotation. The scavenger includes a slot through which the carrier particles travel to return to the developer station and a movable flap covering an opening of the slot for accumulating the carrier particles at the flap until the flap is opened. A source of magnetic field urges the carrier particles through the slot. The carrier particles accumulate at the flap until reaching a volume sufficient to force open the movable flap and fall into the developer station.
摘要翻译： 一种打印机，包括用于保持载体颗粒供应的显影剂站，在其旋转期间积聚载体颗粒的旋转构件，用于在旋转期间从旋转构件去除积聚的颗粒的清除剂。 清除器包括槽，载体颗粒通过该槽移动到显影剂站，以及可移动的挡板，其覆盖槽的开口，用于将载体颗粒堆积在挡板处，直到挡板打开。 磁场的来源通过狭槽促使载体颗粒。 载体颗粒积聚在瓣片处，直到达到足以强制打开活动瓣并落入显影剂站的体积。
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公开(公告)号：US08463146B2
公开(公告)日：2013-06-11
申请号：US13616378
申请日：2012-09-14
IPC分类号： G03G15/08
CPC分类号： G03G15/0851 , G03G2215/0634
摘要： Developer density in an electrophotographic system is measured. The developer includes toner particles and magnetic carrier particles. First and second mutually-insulated electrodes define a working volume between them through which developer passes without contacting the first electrode. An AC voltage or current source is connected to the electrodes. An inductor is connected in series with a voltage source, or an inductor is provided in parallel with a current source. The voltage or current is applied and corresponding current or voltage across the electrodes is measured. The density of the developer in the working volume is automatically determined using a processor responsive to the measured current or voltage and the applied bias.
摘要翻译： 测量电子照相系统中的显影剂密度。 显影剂包括调色剂颗粒和磁性载体颗粒。 第一和第二相互绝缘的电极限定了它们之间的工作体积，显影剂通过该工作体积而不接触第一电极。 AC电压或电流源连接到电极。 电感器与电压源串联连接，或者电感器与电流源并联。 施加电压或电流，并测量电极两端的对应电流或电压。 使用响应于测量的电流或电压以及所施加的偏压的处理器来自动确定显影剂在工作体积中的密度。
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公开(公告)号：US20120027430A1
公开(公告)日：2012-02-02
申请号：US12847143
申请日：2010-07-30
IPC分类号： G03G15/08
CPC分类号： G03G15/556 , G03G15/0851 , G03G15/50
摘要： An apparatus for measuring developer density in an electrophotographic system. A first electrode and a second electrode are disposed to define a working volume between them through which developer moves without contacting the first electrode, wherein the electrodes are electrically insulated from each other by the working volume. A voltage source selectively applies an AC bias across the electrodes. A measuring device measures the current across the electrodes while the bias is applied. A processor is adapted to automatically determine the density of the developer in the working volume based on the measured current and the applied bias.
摘要翻译： 一种用于测量电子照相系统中显影剂密度的装置。 第一电极和第二电极设置成限定它们之间的工作体积，显影剂通过该工作体积而不与第一电极接触，其中电极通过工作体积彼此电绝缘。 电压源选择性地在电极之间施加AC偏压。 当施加偏压时，测量装置测量跨过电极的电流。 处理器适于基于所测量的电流和施加的偏压来自动确定显影剂在工作体积中的密度。
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公开(公告)号：US20120070198A1
公开(公告)日：2012-03-22
申请号：US12887786
申请日：2010-09-22
申请人： Kenneth J. Brown , Donald S. Rimai
发明人： Kenneth J. Brown , Donald S. Rimai
IPC分类号： G03G15/09
CPC分类号： G03G21/0047
摘要： A method for removing carrier buildup in a slotted scavenger electrode in a printer comprising magnetically attracting the carrier toward the slot, blocking the slot with a movable flap for preventing toner dust from traveling through the slot, opening the movable flap for allowing the carrier to travel through the slot and return to the developer station, then reclosing the movable flap.
摘要翻译： 一种用于去除打印机中的带槽式清除电极中的载体积聚的方法，包括将所述载体磁吸引到所述槽，用可移动的挡板阻挡所述槽，以防止调色剂粉尘穿过所述槽，打开所述活动挡板以允许所述载体行进 通过插槽返回开发站，然后重新关闭活动挡板。
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