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公开(公告)号：CA2052104A1
公开(公告)日：1992-06-25
申请号：CA2052104
申请日：1991-09-24
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: Selective coloring of bi-level latent electrostatic images is obtained through a combination of 1) a scavengeless development nip enabled by an AC biased wire in self-spaced contact with a toned donor roll, 2) a belt image receiver such as either a photoreceptor or electroreceptor without a ground plane and 3) an array of addressable, stationary electrodes positioned behind the belt in alignment with the AC biased wire. Selective coloring of the electrostatic image is obtained by selectively DC biasing addressable, stationary electrode structures forming electrode arrays positioned behind the belt. By controlling the level and timing for applying a DC bias to each electrode segment, the developability can be switched on and off with x,y addressability in the plane of the electrostatic image. Thus, with a system having resident multi-colored development systems, different areas of the electrostatic image can be developed in a single pass with different colors and perfect registration simply by controlling the DC electrical signals to the electrodes.
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公开(公告)号：MX153982A
公开(公告)日：1987-03-18
申请号：MX18758581
申请日：1981-06-01
Applicant: XEROX CORP
Inventor： HAYS DAN A
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公开(公告)号：CA1198765A
公开(公告)日：1985-12-31
申请号：CA405757
申请日：1982-06-22
Applicant: XEROX CORP
Inventor： HAYS DAN A , WAYMAN WILLIAM H
Abstract: This invention is generally directed to an improved apparatus and an improved process for charging insulating toner particles to either a positive or negative polarity, and an electrostatographic imaging system containing such apparatus, the apparatus including a means for transporting insulating toner particles, and a means for injecting charges into the insulating toner particles, the means for transporting, and the means for injecting, being charged to a predetermined potential. More specifically, in one embodiment the apparatus of the present invention is comprised of a roller means containing a coating thereon, a toner supply means containing therein uncharged insulating toner particles, a charge injecting means, a voltage source means for said charge injecting means, and a voltage source means for said roller means, wherein charges are injected from said charge injecting means into the uncharged insulating toner particles deposited on said roller means, said injection accomplished in a charging zone encompassed by said roller means and said charge injecting means. The process of the present invention comprises providing uncharged insulating toner particles on a means for transporting said particles, followed by contacting the particles with a means for injecting charges into the insulating toner particles, the means for transporting and the means for injecting being charged to a predetermined potential, wherein charges are injected into the uncharged insulating toner particles. Subsequently, the charged insulating toner particles can be deposited on an imaging member containing an image thereon.
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公开(公告)号：DE3263973D1
公开(公告)日：1985-07-11
申请号：DE3263973
申请日：1982-02-05
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: An apparatus for developing a latent image recorded on original member (10) in which a belt (58) transports developer material into contact with the rigid member (10) in a development zone (62) to develop a latent image recorded thereon. The belt (58) is maintained at a pre-selected tension. In this way, the developer material is compressed and spaces the belt (58) from the rigid member (10). An electrophotographic printing machine incorporating the apparatus is also disclosed.
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公开(公告)号：DE3168598D1
公开(公告)日：1985-03-14
申请号：DE3168598
申请日：1981-06-02
Applicant: XEROX CORP
Inventor： HAYS DAN A
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Patent Agency Ranking
公开(公告)号：JPH11295981A
公开(公告)日：1999-10-29
申请号：JP5215099
申请日：1999-03-01
Applicant: XEROX CORP
Inventor： EKLUND ELLIOTT A , SHAPIRO YELENA , HAYS DAN A
Abstract: PROBLEM TO BE SOLVED: To provide a toner processing system capable of supplying low adhesive charged toner particles for the purpose of electrophotographic development. SOLUTION: Non-charged toner is collected from a fluidized bed storage chamber 76 by combined electrodes 92 and 94 on a supply body. This toner layer is charged by a corona device 300 and used to develop an electrostatic latent image 14 in a developing area 310. The remaining toner is neutralized by another corona device 400 and peeled by applying alternating current(AC) voltage between a supply body and the proximate electrodes, then it is restored to the fluidized bed. The toner particles have low adhesive force by ion charge, and are developed only by direct current(DC) electric field. The dissociation of the particles can be enhanced over the proximate electrode in the developing area 310 by the AC voltage. In addition to making the toner appropriate flow, dry powder toner is mixed interlockingly with the ion charge in the storage chamber 76, whereby ordered color development is achieved in this developing system.
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67.发明专利Direct charging device provided with nano-structure within metal coated pore matrix 有权直接充电装置在金属涂层基体中提供纳米结构
公开(公告)号：JP2007279722A
公开(公告)日：2007-10-25
申请号：JP2007090291
申请日：2007-03-30
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： ZONA MICHAEL F , SWIFT JOSEPH A , HAYS DAN A
CPC classification number: G03G15/1635 , G03G15/0291 , G03G2215/026 , G03G2215/1609
Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for directly charging a receptor and reducing the unnecessary production of reactive oxidizing chemical species in a charging process.
SOLUTION: An electrophotographic charging device 700 comprises a conductive layer 710, a porous layer 720, a conductive layer 730 and nano-structures 750. The porous layer 720 is present on the conductive layer 710 and the conductive layer 730 is present on the porous layer 720. A plurality of holes 740 are formed on the porous layer 720, and at least one nano-structure 750 is present in each hole 740 and is electrically connected to the conductive layer 710. First bias voltage is applied to the conductive layer 710 from a power source 780, thereby charging or discharging a receptor 760 on a side opposite to the conductive layer 730. It is desirable to apply second bias voltage to the conductive layer 730 by a power source 782 so as to control charging or discharging operation.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种在充电过程中直接对受体进行充电并减少不必要的反应性氧化化学物质的生成的方法和系统。 电解质充电装置700包括导电层710，多孔层720，导电层730和纳米结构750.多孔层720存在于导电层710上，导电层730存在于 多孔层720.多孔层720上形成有多个孔740，并且在每个孔740中存在至少一个纳米结构750，并且电连接到导电层710.第一偏置电压施加到导电 层710，从而在与导电层730相对的一侧充电或放电接收器760.期望通过电源782向导电层730施加第二偏置电压，以便控制充电或放电 操作。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2002169340A
公开(公告)日：2002-06-14
申请号：JP2001353895
申请日：2001-11-20
Applicant: XEROX CORP
Inventor： MOFFAT KAREN A , MCDOUGALL MARIA N V , CARLINI RINA , HAYS DAN A , LESTRANGE JACK T , GERROIR PAUL J
Abstract: PROBLEM TO BE SOLVED: To provide a toner composition usable in processes such as electrographic, electrophotographic and nuclear photographic processes including a process in which toner particles are triboelectrically charged and a process in which toner particles are charged by a nonmagnetic induction charging process. SOLUTION: The toner comprises particles of a resin and an arbitrary colorant, and the toner particles are coated with a polythiophene.
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公开(公告)号：JP2007279724A
公开(公告)日：2007-10-25
申请号：JP2007090293
申请日：2007-03-30
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： ZONA MICHAEL F , SWIFT JOSEPH A , HAYS DAN A , FACCI JOHN S
CPC classification number: G03G15/1635 , G03G15/02 , G03G2215/026 , G03G2215/1609
Abstract: PROBLEM TO BE SOLVED: To provide a solid state charging method and a solid state charging system excellent in operation efficiency as a whole by restraining AC voltage used in a charging process and operation temperature in the charging process.
SOLUTION: A first electrode 220 is disposed adjacent to the first surface 211 of a dielectric layer 210, and a second electrode 230 is arranged adjacent to the second surface 212 of the dielectric layer 210. The second electrode 230 is coated with a plurality of nano-structures so that each one end can be in electrical contact with the second surface 231 of the second electrode 230. By applying the AC voltage between the first electrode 220 and the second electrode 230, a plurality of charge species are generated at the other end of the nano-structure, and the charge species are deposited on a receptor arranged to face the second electrode and spaced apart from the second electrode, thereby charging the receptor. DC voltage approximately equal to final receptor voltage is applied to the second electrode 230.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：通过抑制充电过程中使用的交流电压和充电过程中的操作温度，提供整体上操作效率优异的固态充电方法和固态充电系统。 解决方案：第一电极220邻近电介质层210的第一表面211设置，第二电极230邻近电介质层210的第二表面212设置。第二电极230涂覆有 多个纳米结构，使得每个一端可以与第二电极230的第二表面231电接触。通过在第一电极220和第二电极230之间施加AC电压，多个电荷种类在 纳米结构的另一端，并且电荷种类沉积在布置成面对第二电极并与第二电极间隔开的受体上，从而对受体充电。 大约等于最终受体电压的直流电压被施加到第二电极230.版权所有（C）2008，JPO和INPIT
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公开(公告)号：JPH11249370A
公开(公告)日：1999-09-17
申请号：JP1199
申请日：1999-01-04
Applicant: XEROX CORP
Inventor： TABB CHARLES H , JACKSON MARK S , OBRIEN JOHN F , HAYS DAN A
Abstract: PROBLEM TO BE SOLVED: To dispense with the erasing of the polarity of a photoreceiving body in the case of re-electrification in an electrophotographic color printer having a system of the re-electrification of an image on an image, exposure and development (REaD 101). SOLUTION: This color printer is provided with a first electrifying device 20 by which the potential of the photoreceiving body is reduced by jetting an ion having a polarity for reducing a charge on an image area first when the photoreceiving body 10 is electrified between the developing of the toner image of one color and the exposure of the latent image of a succeeding color, and a second electrifying device 22 electrifying the photoreceiving body 10 with the ion having a reverse polarity and re-electrifying it to a required level.
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