公开(公告)号：US5285243A

公开(公告)日：1994-02-08

申请号：US896866

申请日：1992-06-12

Applicant: Donald S. Rimai ,  Mark C. Zaretsky ,  Bruno Primerano ,  David D. Almeter

Inventor： Donald S. Rimai ,  Mark C. Zaretsky ,  Bruno Primerano ,  David D. Almeter

IPC: G03G15/00 ,  G03G15/08 ,  G03G21/00

CPC classification number: G03G15/50 ,  G03G15/0848

Abstract: A method and apparatus for determining the rate of development characteristic of electroscopic toner particles of the type used in electrostatographic recording to develop electrostatic images. The apparatus has a biased electrode for attracting toner particles and a microprocessor-based logic and control unit for sampling the mass of toner particles attracted to the electrode at preselected times during the accumulation of toner on the biased electrode. This development rate parameter is used by the logic and control unit to control process parameters (e.g. primary charging and exposure levels, development electrode bias, toner concentration) which affect image quality.

Abstract translation: 用于确定用于静电图像的类型的电致调色剂颗粒的显影速率的方法和装置，以形成静电图像。 该装置具有用于吸引调色剂颗粒的偏置电极和基于微处理器的逻辑和控制单元，用于在调色剂在偏置电极上累积期间的预选时间对吸附到电极的调色剂颗粒的质量进行取样。 该开发速率参数由逻辑和控制单元用于控制影响图像质量的工艺参数（例如初级充电和曝光水平，显影电极偏差，调色剂浓度）。

公开(公告)号：US4652754A

公开(公告)日：1987-03-24

申请号：US812710

申请日：1985-12-23

Applicant: David D. Almeter ,  Jon K. Edwards

Inventor： David D. Almeter ,  Jon K. Edwards

IPC: G03G15/02 ,  H01T19/00

CPC classification number: G03G15/0291 ,  H01T19/00

Abstract: A corona discharge device having a first corona wire and a second corona wire parallel to the first corona wire and in physical contact therewith, such that the forces created by the wires during energization prevent the vibration of the wires, thereby eliminating short circuiting and the need for costly wire-damping devices.

Abstract translation: 一种电晕放电装置，具有与第一电晕丝平行的第一电晕丝和第二电晕丝，并与其物理接触，使得在通电期间由导线产生的力防止线的振动，从而消除短路和需要 用于昂贵的线阻尼装置。

公开(公告)号：US5532802A

公开(公告)日：1996-07-02

申请号：US372639

申请日：1995-01-13

Applicant: Sven Sonnenberg ,  Donald S. Rimai ,  David D. Almeter ,  Martin Potucek

Inventor： Sven Sonnenberg ,  Donald S. Rimai ,  David D. Almeter ,  Martin Potucek

IPC: G03G15/08 ,  G03G21/00

CPC classification number: G03G15/0848

Abstract: A toner mass sensor includes a piezoelectric crystal having a resonant frequency, an electrode on a first face of the crystal, an electrically conductive lead connecting the first face of the crystal to an electrical contact point in the vicinity of a second side of the crystal, and a casing closed at one end by the crystal with the first face of the crystal allowed to contact developer outside of the closed casing through the opening of the casing. The casing and crystal defines an interior which is sealed from developer in a development station, within which sealed interior the second face of the crystal is protected from contamination by developer. The electrode is wrapped around the edge of the crystal to be accessible from the second side of the crystal, and the electrode is a metal; preferably aluminum. The interior of the casing is closed by a base member which carries an electrical circuit. The casing is cylindrical, and an elastomeric, electrical insulator gasket around the crystal seals the interior of the casing to inhibit contamination of the interior of the casing by developer.

Abstract translation: 调色剂质量传感器包括具有共振频率的压电晶体，晶体的第一面上的电极，将晶体的第一面连接到晶体的第二侧附近的电接触点的导电引线， 以及一端由晶体封闭的壳体，晶体的第一面允许通过壳体的开口与显影剂外部接触显影剂。 壳体和晶体限定了内部，该内部与显影台中的显影剂密封，其中晶体的第二面的密封内部不被显影剂污染。 电极围绕晶体的边缘缠绕以便从晶体的第二侧接近，并且电极是金属; 优选铝。 壳体的内部由携带电路的基座构件封闭。 壳体是圆柱形的，并且围绕晶体的弹性体电绝缘垫圈密封壳体的内部，以防止显影剂对壳体内部的污染。

公开(公告)号：US5122835A

公开(公告)日：1992-06-16

申请号：US696381

申请日：1991-05-06

Applicant: Allen J. Rushing ,  Sally L. Stearns ,  David D. Almeter

Inventor： Allen J. Rushing ,  Sally L. Stearns ,  David D. Almeter

IPC: G03G15/00

CPC classification number: G03G15/5041 ,  G03G2215/00042

Abstract: Densitometer readings are corrected by obtaining density readings on an untoned area of the interframe region of an image receiver during cycle-up, storing the readings and subtracting the stored readings from subsequent test readings of the same area of the image receiver. Differences between the cycle-up readings and test readings are used to adjust density readings of toned reference patches obtained with the test readings. The procedure can be used during production modes of the machine, with all readings being taken in the interframe regions, or the procedure can be a part of an automatic set-up operation with toned reference patch readings being taken in the image frame areas of the image receiver.

Abstract translation: 通过在循环过程中通过在图像接收器的帧间区域的未分配区域上获得密度读数来校正密度计读数，存储读数并从图像接收器的相同区域的后续测试读数中减去存储的读数。 循环读数和测试读数之间的差异用于调整用测试读数获得的色调参考斑块的浓度读数。 该程序可以在机器的生产模式下使用，其中所有读数都在帧间区域中进行，或者该过程可以是自动设置操作的一部分，其中调色参考斑读数读取在图像帧区域中 图像接收器。

公开(公告)号：US5148217A

公开(公告)日：1992-09-15

申请号：US719452

申请日：1991-06-24

Applicant: David D. Almeter ,  William A. Resch, III

Inventor： David D. Almeter ,  William A. Resch, III

IPC: G01J1/16 ,  G01J1/18 ,  G01N21/47 ,  G03G15/00

CPC classification number: G01J1/18 ,  G01N21/4738 ,  G03G15/5041 ,  G01J2001/161 ,  G01N2021/4769 ,  G01N2201/0621 ,  G03G2215/00042

Abstract: A densitometer includes a light source positioned to project light rays to a test surface. A photodetector is positioned to receive light rays from the surface, and has an output which is characteristic of the amount of light received. The densitometer includes a voltage source and a photodetector which generates an output signal which is a function of a measured density and of the voltage of the source. A log amp produces a signal which is substantially proportional to the ratio of the output of the photodetector and a second output signal which is also a function of the voltage of the source.

Abstract translation: 密度计包括定位成将光线投射到测试表面的光源。 光电检测器被定位成从表面接收光线，并且具有作为所接收的光量的特征的输出。 密度计包括电压源和光电检测器，其产生作为测量的密度和源的电压的函数的输出信号。 对数放大器产生与光电检测器的输出和第二输出信号的比率基本成比例的信号，该信号也是源的电压的函数。