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公开(公告)号：US3684364A
公开(公告)日：1972-08-15
申请号：US3684364D
申请日：1971-06-24
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
CPC classification number: G03G17/04 , G03G15/0216 , Y10S430/102
Abstract: The problem of electric breakdown in air at the initial and final contact points of a roller electrode with a reproductive surface is solved by providing a graded potential to the roller electrode over the area of contact. By selecting appropriate low level potentials for the initial and final contact points, air breakdown is avoided. The graded potential can be provided to the roller by means of a plurality of sliding contacts and resistively interconnected electrodes arranged about the circumference of the roller extending sufficiently through the roller to provide the requisite field to the reproducing surface beneath.
Abstract translation: 在具有生殖表面的辊电极的初始和最终接触点的空气中电击穿的问题通过在接触区域上向辊电极提供梯度电位来解决。 通过选择初始和最终接触点的适当的低电平电位，避免空气故障。 可以通过多个滑动触点和围绕辊的圆周布置的电阻互连电极将梯度电位提供给辊，该电极充分延伸穿过辊，以向下面的再现表面提供必要的场。
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公开(公告)号：US3877934A
公开(公告)日：1975-04-15
申请号：US39260073
申请日：1973-08-29
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
CPC classification number: G03G17/04 , G03G15/344 , G03G2217/0091
Abstract: A process for image reproduction comprises the steps of contacting a charge blocking surface on a photoreceptive body with a developer material containing charged toner particles, providing an electric field of predetermined polarity between the photoreceptor and a transfer medium for attracting the toner particles toward the photoreceptor surface, subjecting the photoreceptor to activating radiation in image configuration for inducing an electrostatic charge pattern in image configuration on the photoreceptor near an interface between the blocking layer and the developer material and providing an electric field of opposite polarity between the photoreceptor and the transfer medium for transferring the toner particles in image configuration to the transfer medium. Automated copying apparatus and photographic apparatus in accordance with features of the invention are provided.
Abstract translation: 用于图像再现的方法包括以下步骤：使感光体上的电荷阻挡表面与含有带电调色剂颗粒的显影剂材料接触，在感光体和用于将调色剂颗粒吸引到感光体表面的转印介质之间提供预定极性的电场 在感光体和转印介质之间形成相反极性的电场，以便在感光体和显影剂材料之间的界面附近的感光体上形成图像构型中的静电荷图案， 图像配置中的调色剂颗粒到转印介质。 提供了根据本发明的特征的自动复印设备和照相设备。
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公开(公告)号：US3890040A
公开(公告)日：1975-06-17
申请号：US39259973
申请日：1973-08-29
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
CPC classification number: G03G17/04 , G03G15/344 , G03G2217/0091
Abstract: A process and apparatus for image reproduction wherein the process comprises the steps of contacting a charge blocking surface on a photoreceptive body with a developer material containing charged toner particles, providing an electric field of predetermined polarity between the photoreceptor and a transfer medium for attracting the toner particles toward the photoreceptor surface, subjecting the photoreceptor to activating radiation in image configuration for inducing an electrostatic charge pattern in image configuration on the photoreceptor near an interface between the blocking layer and the developer material and providing an electric field of opposite polarity between the photoreceptor and the transfer medium for transferring the toner particles in image configuration to the transfer medium. Automated copying apparatus and photographic apparatus in accordance with features of the invention are provided.
Abstract translation: 一种用于图像再现的方法和装置，其中该方法包括使感光体上的电荷阻挡表面与含有带电调色剂颗粒的显影剂材料接触的步骤，在感光体和用于吸引调色剂的转印介质之间提供预定极性的电场 颗粒朝向感光体表面，使感光体在图像配置中激活辐射，以在感光体上靠近感光体和显影剂材料之间的界面处引起图像构造中的静电电荷图案，并在感光体和感光体表面之间提供相反极性的电场 用于将图像配置中的调色剂颗粒转印到转印介质的转印介质。 提供了根据本发明的特征的自动复印设备和照相设备。
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公开(公告)号：DE69015141D1
公开(公告)日：1995-01-26
申请号：DE69015141
申请日：1990-12-21
Applicant: XEROX CORP
Inventor： ABRAMSOHN DENNIS A , NICHOL-LANDRY DEBORAH , SYPULA DONALD S , SCHMIDLIN FRED W , CHASKO JEROME P , FRANK JOHN A , MAMMINO JOSEPH , GARY WILLIAM L , SPRINGETT BRIAN E , MURTI KRISHNA D
Abstract: An ionographic imaging member containing a conductive layer (67) and a uniform and continuous dielectric imaging layer (66) free of voids, the imaging layer having a dielectric constant of from about 1.5 to about 40 and a thickness of at least about 45 micrometers, the thickness divided by the dielectric constant having a value of from about 30 to about 60 micrometers. This member may be used in an ionographic imaging process.
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公开(公告)号：DE68914899T2
公开(公告)日：1994-11-24
申请号：DE68914899
申请日：1989-07-24
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
Abstract: Near letter quality (NLQ) characters are formed using direct electrostatic printing (DEP) by providing a printhead structure (14) containing at least three equally spaced rows (64, 66, 68, 70) of equally spaced and staggered apertures (40). In the preferred embodiment, the printhead structure includes at least four rows of apertures. The number of rows is equal to the distance between aperture centers divided by the diameter of a spot of toner deposited by each of the apertures.
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Patent Agency Ranking
公开(公告)号：DE68914899D1
公开(公告)日：1994-06-01
申请号：DE68914899
申请日：1989-07-24
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
Abstract: Near letter quality (NLQ) characters are formed using direct electrostatic printing (DEP) by providing a printhead structure (14) containing at least three equally spaced rows (64, 66, 68, 70) of equally spaced and staggered apertures (40). In the preferred embodiment, the printhead structure includes at least four rows of apertures. The number of rows is equal to the distance between aperture centers divided by the diameter of a spot of toner deposited by each of the apertures.
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公开(公告)号：CA1043888A
公开(公告)日：1978-12-05
申请号：CA228731
申请日：1975-06-06
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W , HAAS WERNER E L , ADAMS JAMES E
Abstract: An imaging system wherein a imaging member comprises a layer of a hemotropically aligned nematic liquid crystalline material which is optically uniaxial residing on a photoconductive insulating layer. When the liquid crystal layer is subjected to an electrostatic charge and the photoconductive insulating layer is exposed to an imagewise pattern of activating electromagnetic radiation, the liquid crystalline material is subjected in selective areas to an electrical field which has components both in the plane of the layer and normal to the plane of the layer thereby inducing optical biaxiality in those areas of the imaging material. In a preferred embodiment of the invention a layer of a suitable overcoating material is arranged over the liquid crystal layer.
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公开(公告)号：DE69008975T2
公开(公告)日：1994-12-15
申请号：DE69008975
申请日：1990-08-28
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W , SULLIVAN WILLIAM A
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公开(公告)号：DE69006949T2
公开(公告)日：1994-07-07
申请号：DE69006949
申请日：1990-07-03
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
Abstract: Direct electrostatic printing (DEP) is enhanced by the provision of a shutter mechanism (54) for preventing toner dislodged from a printhead structure from being deposited on copy substrates. The shutter is interposed between the printhead structure and the copy substrate during a cleaning cycle. The dislodged toner is removed from between the printhead structure and the copy substrate with a combination suction and toner collection device.
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公开(公告)号：DE68911750T2
公开(公告)日：1994-06-01
申请号：DE68911750
申请日：1989-05-31
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W
Abstract: Direct electrostatic printing (DEP) is optimized by presenting well charged toner (34) to a charged toner conveyor (18) which conveys the toner to an apertured printhead structure (14) for propulsion therethrough. The charged toner conveyor comprises a plurality of electrodes (24, 26, 28, 30) wherein the electrode density is relatively large for enabling a high toner delivery rate without risk of air breakdown. The printhead structure is constructed for minimization of aperture clogging. To this end the thickness of the printhead structure is about 0.025 mm and the aperture diameter (i.e. 0.15 mm) is large compared to the printhead thickness.
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