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    • 2. 发明申请
    • ELECTROPHOTOGRAPHIC DEVELOPER FLOW RATE MEASUREMENT
    • 电子显影开发流量测量
    • WO2012015864A1
    • 2012-02-02
    • PCT/US2011/045454
    • 2011-07-27
    • EASTMAN KODAK COMPANYBROWN, Kenneth, JosephHASENAUER, Charles, H.
    • BROWN, Kenneth, JosephHASENAUER, Charles, H.
    • G03G15/08
    • G03G15/0851G03G2215/0634
    • Developer flow rate over a rotatable development member (7,10) in an electrophotographic system is measured. An electrode (4,15) and the development member define a capacitive working volume (4,20) 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 (7,40) 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.
    • 测量电子照相系统中可转动显影元件(7,10)上的显影剂流速。 电极(4,15)和显影构件在显影剂移动通过它们之间限定电容性工作体积(4,20)。 电连接到电极和显影元件的电压源选择性地在工作体积上施加AC偏压,并且当施加偏压时,仪表(7,40)测量横跨工作体积的电流。 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。
    • 7. 发明申请
    • RESONANT-FREQUENCY MEASUREMENT OF ELECTROPHOTOGRAPHIC DEVELOPER DENSITY
    • 电子光谱发展密度的谐振频率测量
    • WO2012015629A1
    • 2012-02-02
    • PCT/US2011/044482
    • 2011-07-19
    • EASTMAN KODAK COMPANYBROWN, Kenneth, J.HASENAUER, Charles, H.
    • BROWN, Kenneth, J.HASENAUER, Charles, H.
    • G03G15/08
    • G03G15/0851G03G2215/0634
    • Developer density is measured in an electrophotographic system (100). First an second electrodes (410, 415) are disposed to define a working volume (420) between them through which developer passes without contacting the first electrode (415), wherein the electrodes are electrically insulated from each other by the working volume. One terminal of an AC voltage (current) source (430) having a selected frequency is connected to one of the electrodes. An inductor (919) 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 (450) responsive to the measured current (voltage) and the applied bias (current).
    • 显影剂密度在电子照相系统(100)中测量。 首先,设置第二电极(410,415)以限定它们之间的工作体积(420),显影剂通过该工作体积而不接触第一电极(415),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(430)的一个端子连接到一个电极。 电感器(919)与电压源串联(并联),使得源极通过电感器(跨越)跨越电极提供AC偏置(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(450)自动确定工作容积中显影剂的密度。
    • 8. 发明申请
    • SYSTEMS AND METHODS FOR MONITORING TONER USAGE
    • 监测使用量的系统和方法
    • WO2007040329A1
    • 2007-04-12
    • PCT/KR2006/003966
    • 2006-10-02
    • SAMSUNG ELECTRONICS CO., LTD.
    • WALTER, FilbrichBRENT, Richtsmeier
    • G03G15/06
    • G03G15/0851G03G15/0856G03G15/556G03G2215/0888
    • Systems and methods for estimating the amount of imaging material, such as toner, used in a printing device. In one example, a system estimates toner usage from imaging data and accounts for a 'diffusion effect' caused by non-adjacent pixel groups. In certain embodiments, the system examines sets of pixel locations within a page. For example, the system may evaluate each set of eight adjacent pixel locations (i.e., a byte of information) on a page. For each pixel location set, the system determines a proximity factor that is indicative of the number of independent pixel groups within the respective pixel location set. The system then calculates a proximity value based on at least a portion of the proximity factors and uses the proximity value and a pixel count for the page to estimate a toner usage amount.
    • 用于估计在打印装置中使用的成像材料(例如调色剂)的量的系统和方法。 在一个示例中,系统从成像数据估计调色剂使用并考虑由非相邻像素组引起的“扩散效应”。 在某些实施例中,系统检查页面内的像素位置集合。 例如,系统可以评估页面上的八组相邻像素位置(即信息字节)的每组。 对于每个像素位置集合,系统确定表示相应像素位置集合内的独立像素组的数量的接近度。 系统然后基于接近度因素的至少一部分来计算接近度值,并且使用接近度值和页面的像素计数来估计调色剂使用量。