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    • 11. 发明申请
    • ELECTROPHOTOGRAPHIC DEVELOPER TONER CONCENTRATION MEASUREMENT
    • 电子显微照相色谱浓度测定
    • WO2012015792A1
    • 2012-02-02
    • PCT/US2011/045306
    • 2011-07-26
    • EASTMAN KODAK COMPANYBROWN, Kenneth, JosephHASENAUER, Charles, H.
    • BROWN, Kenneth, JosephHASENAUER, Charles, H.
    • G03G15/08
    • G03G15/0851G03G2215/0634
    • Developer toner concentration in an electrophotographic system is measured. Two sensors (1120, 1130), one before and one after the toning zone (1110) in the direction of rotation of the development member (1171), each include respective electrodes that form a respective capacitance between the respective electrode and the development member. A voltage source (430) selectively applies respective AC biases across the sensors and the respective currents across the sensors are measured. A controller (1170) causes an electrostatic latent image to be produced on the photoreceptor (206) 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.
    • 测量电子照相系统中的显影剂调色剂浓度。 在显影构件(1171)的旋转方向之前和之后的调色区域(1110)之前和之后的两个传感器(1120,1130)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(430)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(1170)使得在感光体(206)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。