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公开(公告)号：US3889637A
公开(公告)日：1975-06-17
申请号：US37429573
申请日：1973-06-28
Applicant: XEROX CORP
Inventor： NORTH ARTHUR J , STOVER RAYMOND W
CPC classification number: G03G15/0907 , G03G15/065
Abstract: A development apparatus for developing electrostatic charge patterns or images or a dielectric surface which includes an electrically biased development electrode in close proximity to the surface. The electrode is connected to ground potential through an impedance path which comprises at least one reversed biased zener diode. The electrode is self-biased with the biasing potential being a function of the breakdown voltage of the zener diode. The breakdown voltage of the diode is selected to give the desired electrode potential. Preferably, the apparatus includes means for changing the bias potential on the electrode. An electrostatographic reproducing apparatus employing the aforenoted developer apparatus is also claimed.
Abstract translation: 用于显影静电荷图案或图像的显影装置或电介质表面，其包括紧邻表面的电偏置显影电极。 电极通过包括至少一个反向偏置齐纳二极管的阻抗路径连接到地电位。 电极是自偏置的，偏置电位是齐纳二极管的击穿电压的函数。 选择二极管的击穿电压以产生所需的电极电位。 优选地，该装置包括用于改变电极上的偏置电位的装置。 还要求保护采用上述显影装置的静电放像装置。
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公开(公告)号：US3685488A
公开(公告)日：1972-08-22
申请号：US3685488D
申请日：1970-07-10
Applicant: XEROX CORP
Inventor： STOVER RAYMOND W
CPC classification number: G03G15/0801 , G03G15/082
Abstract: Apparatus is herein disclosed for developing a latent electrostatic image on the surface of a moving image retaining member. An extended electrode is positioned adjacent the moving surface to form a development zone therebetween. Means are provided to move a closely packed flow of two component developer material moving through the development zone in contact with the photoreceptor wherein toner particles are electrostatically exchanged between the developer material and the imaged areas on the photoreceptor. Biasing means are provided to place the backing electrode at a potential to enhance the developability of the system.
Abstract translation: 本文公开了用于在运动图像保持构件的表面上显影静电潜像的装置。 延伸电极位于移动表面附近以在其间形成显影区。 提供装置以移动移动通过与感光体接触的显影区的两组分显影剂材料的紧密堆积的流动，其中调色剂颗粒在显影剂材料和感光体上的成像区域之间静电交换。 提供偏置装置以使背衬电极具有增强系统可显影性的潜力。
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公开(公告)号：NL7504310A
公开(公告)日：1975-06-30
申请号：NL7504310
申请日：1975-04-10
Applicant: XEROX CORP
Inventor： SMITH RICHARD E , STOVER RAYMOND W
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公开(公告)号：CA1049255A
公开(公告)日：1979-02-27
申请号：CA224353
申请日：1975-04-10
Applicant: XEROX CORP
Inventor： SMITH RICHARD E , STOVER RAYMOND W
IPC: G03G15/09
Abstract: DEVELOPER SHUT-OFF APPARATUS A developer sump is communicated to a magnetic transport means through a developer outlet at the lower end of the sump. During development function, magnetic developer flows from the sump through the outlet to the magnetic transport means. A magnetic gate is normally located away from the outlet during the development function and is arranged to be swung into a position adjacent to the opening to magnetically stop the flow of developer through the outlet when it is desired to purge the development system.
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公开(公告)号：FR2269123A1
公开(公告)日：1975-11-21
申请号：FR7513449
申请日：1975-04-29
Applicant: XEROX CORP
Inventor： SMITH RICHARD E , STOVER RAYMOND W
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Patent Agency Ranking
公开(公告)号：CA1036347A
公开(公告)日：1978-08-15
申请号：CA224551
申请日：1975-04-10
Applicant: XEROX CORP
Inventor： SMITH RICHARD E , STOVER RAYMOND W
IPC: G03G15/09
Abstract: SEGMENTED GATE DEVELOPER FLOW CONTROLLER An apparatus and method is provided which limits the amount of developer that is presented to an electrostatic latent image to a width corresponding to the length of copy paper used. This particular apparatus and method apply to a development system which has a developer sump communicated to a magnetic transport means through a developer outlet at the lower end of the sump. During development functions, magnetic developer flows from the sump through the outlet to the magnetic transport means to be presented to the latent image. A plurality of magnetic gates are provided, each of which may be swung into closed position adjacent the outlet to magnetically block flow of developer through that portion of the outlet corresponding to the length of the magnetic gate adjacent thereto. Each magnetic gate may also be swung into an open position which allows developer to flow through the outlet corresponding to the length of the magnetic gate adjacent thereto. Certain of the magnetic gates may be selectively located in open or closed position to allow developer to flow through the outlet over a width corresponding to the length of a copy sheet being utilized. All of the gates may be located in closed position when it is desired to stop all of developer flow through the outlet to purge the developer system. A particular shaft construction is provided to allow selective relative movement of the gates.
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公开(公告)号：CA1029941A
公开(公告)日：1978-04-25
申请号：CA192972
申请日：1974-02-19
Applicant: XEROX CORP
Inventor： NORTH ARTHUR J , STOVER RAYMOND W
Abstract: A development apparatus for developing electrostatic charge patterns or images or a dielectric surface which includes an electrically biased development electrode in close proximity to the surface. The electrode is connected to ground potential through an impedance path which comprises at least one reversed biased zener diode. The electrode is self-biased with the biasing potential being a function of the breakdown voltage of the zener diode. The breakdown voltage of the diode is selected to give the desired electrode potential. Preferably, the apparatus includes means for changing the bias potential on the electrode. An electrostatographic reproducing apparatus employing the aforenoted developer apparatus is also claimed.
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公开(公告)号：DE2516540A1
公开(公告)日：1975-11-06
申请号：DE2516540
申请日：1975-04-15
Applicant: XEROX CORP
Inventor： SMITH RICHARD E , STOVER RAYMOND W
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公开(公告)号：DE69718407T2
公开(公告)日：2003-06-05
申请号：DE69718407
申请日：1997-09-29
Applicant: XEROX CORP
Inventor： CARUTHERS EDWARD B JR , STOVER RAYMOND W , GIBSON GEORGE A , LARSON JAMES R
Abstract: The liquid developing apparatus comprises a reservoir for providing a supply of operative liquid developing material and being coupled to a liquid developing material supply so as to be replenished. A predetermined amount of operative liquid developing material is periodically discharged from the reservoir to remove contaminated liquid developing material from it upon detection of an unacceptable level of contamination in said supply of liquid developing material. A predetermined amount of liquid developing material concentrate is systematically dispensed from the liquid developing material supply to the reservoir so as to extend the useful life of the operative liquid developing material within it. A multi-wavelength light attenuation sensing device detects a colour shift in the supply of operative liquid developing material for control of the discharger and the dispenser.
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公开(公告)号：DE69718407D1
公开(公告)日：2003-02-20
申请号：DE69718407
申请日：1997-09-29
Applicant: XEROX CORP
Inventor： CARUTHERS EDWARD B JR , STOVER RAYMOND W , GIBSON GEORGE A , LARSON JAMES R
Abstract: The liquid developing apparatus comprises a reservoir for providing a supply of operative liquid developing material and being coupled to a liquid developing material supply so as to be replenished. A predetermined amount of operative liquid developing material is periodically discharged from the reservoir to remove contaminated liquid developing material from it upon detection of an unacceptable level of contamination in said supply of liquid developing material. A predetermined amount of liquid developing material concentrate is systematically dispensed from the liquid developing material supply to the reservoir so as to extend the useful life of the operative liquid developing material within it. A multi-wavelength light attenuation sensing device detects a colour shift in the supply of operative liquid developing material for control of the discharger and the dispenser.
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