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公开(公告)号：BR8204265A
公开(公告)日：1983-07-19
申请号：BR8204265
申请日：1982-07-22
Applicant: XEROX CORP
Inventor： HAYS DAN A , WAYMAN WILLIAM H
Abstract: Apparatus for electrostatically charging insulating toner particles in which the particles (17) are constrained particles to a region (16) between two surfaces (12, 18) which are arranged so as to be in close proximity to one another in a charging zone (34), and which are both arranged for movement through the charging zone. One of the surfaces is a charging surface (12) for charging the particles, and the other surface is a transporting surface (18) for transporting the particles through the charging zone. The surfaces are electrically biased (30, 32) to predetermined potentials. … In one embodiment of the apparatus, the charging surface is the surface of the roller (12) which simultaneously meters and charges non-magnetic insulating toner particles, the roller having thereon a triboelectrically active coating (13). The transporting surface is in the form of an endless belt (18) which forms a path of movement around a drive roller (20) and an idler roller (22). The apparatus also includes a toner supply reservoir (16), containing therein weakly charged insulating toner particles (16) possessing about an equal number of positive and negative charges thereon, a voltage source (30) for the metering/charging roller, a voltage source (32) for the drive roller and the belt and a tensioning means (24) for the belt. The metering/charging roller (12) moves in a direction opposite to the direction of movement of the transport belt (18). The apparatus and process of the present invention are useful, for example, in electrostatographic imaging apparatuses.
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公开(公告)号：DE60144363D1
公开(公告)日：2011-05-19
申请号：DE60144363
申请日：2001-11-21
Applicant: XEROX CORP
Inventor： MOFFAT KAREN A , CARLINI RINA , MCDOUGALL MARIA N V , HAYS DAN A , LESTRANGE JACK T , COMBES JAMES R
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公开(公告)号：DE69836519T2
公开(公告)日：2007-09-13
申请号：DE69836519
申请日：1998-06-02
Applicant: XEROX CORP
Inventor： GENOVESE FRANK C , KUBBY JOEL A , PEETERS ERIC , CHEN JINGKUANG , HAYS DAN A , POND STEPHEN F
Abstract: A magnetically actuated ink jet printing device for use in an ink jet printer ejects ink droplets by deforming a diaphragm (38) with the force generated on an electrode (40) in a magnetic field when an electric current pulse is applied thereto. In one embodiment, the diaphragm (38) of the device is provided by anisotropically etching a silicon substrate (32) with an etch stop which provides a thin membrane of silicon material for use as the diaphragm (38). An electrode (40) having an input and output terminal (45, 42) is patterned over the diaphragm (38) and a sacrificial layer (64) is deposited over the silicon substrate surface containing the diaphragm (38). The sacrificial layer (64) is patterned to subsequently provide the ink ejection chamber (49) over the diaphragm (38). A patternable layer (44) is deposited over the silicon substrate surface including the sacrificial layer and patterned to provide the nozzles (46) and expose the electrode terminals (45, 42). The sacrificial layer (64) is removed and an ink supply is connected to the space previously occupied by the sacrificial layer (64). Magnetic field generating means having a predetermined magnetic field strength are placed adjacent the device, and electric current applied to the electrode terminals (45, 42) in a predetermined direction relative to the magnetic field produces a force necessary to deform the diaphragm (38) and eject an ink droplet from the nozzles (46) of the printing device.
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公开(公告)号：DE602005000936T2
公开(公告)日：2007-09-06
申请号：DE602005000936
申请日：2005-01-20
Applicant: XEROX CORP
Inventor： SACRIPANTE GUERINO G , MAHABADI HADI K , BURNS PATRICIA A , HAYS DAN A , JUGLE KIP L
IPC: B05D1/10 , B05D7/24 , B01J2/06 , B01J2/30 , B05D1/06 , B05D1/12 , B05D1/24 , C09D7/47 , C23C24/08
Abstract: A process for powder coating comprises forming a coating on a conductive surface or a layer on a conductive surface by applying a powder that is formed by aggregating and coalescing polymer particles in an aqueous dispersion to the surface or layer. A process for powder coating comprises forming a powder by aggregating, in a aqueous dispersion, polymer particles including at least resin particles, coalescing the particles, removing the particles from dispersion and applying the powder to a conductive surface or layer on a conductive surface. A process for forming a powder coating applicator comprises aggregating, in a aqueous dispersion, polymer particles including at least resin particles, coalescing the particles, removing the particles from dispersion and loading the particles into an applicator for use in powder coating. By this process, a powder coating applicator is formed.
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公开(公告)号：DE60124492D1
公开(公告)日：2006-12-28
申请号：DE60124492
申请日：2001-11-22
Applicant: XEROX CORP
Inventor： MOFFAT KAREN A , MCDOUGALL MARIA N V , CARLINI RINA , HAYS DAN A , LESTRANGE JACK T , GERROIR PAUL J
Abstract: Disclosed is a toner comprising particles of a resin and an optional colorant, said toner particles having coated thereon a polythiophene. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a resin and an optional colorant, said toner particles having coated thereon a polythiophene.
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Patent Agency Ranking
公开(公告)号：BR9904416A
公开(公告)日：2000-09-05
申请号：BR9904416
申请日：1999-09-30
Applicant: XEROX CORP
Inventor： PEETERS ERIC , NOPOLANDI JAAN , APTE RAJ B , FLOYD PHILIP D , SMALL JONATHAN A , KOVACS GREGORY J , LEAN MENG H , VOLKEL ARMIN R , BOLTE STEVEN B , SHI AN-CHANG , ENDICOTT FREDERICK J , ANDERSON GREGORY B , HAYS DAN A , KUBBY JOEL A , JACKSON WARREN B , MOFFAT KAREN A , MCANENEY T BRIAN , VEREGIN RICHARD P N , MCDOUGALL MARIA N V , BOILS DANIELLE C , SZABO PAUL D , BERLIN ANDREW A , CONNELL G A NEVILLE
Abstract: A print head (24) is disclosed for use in a marking apparatus in which a propellant stream (A) is passed through a channel (34) and directed toward a substrate (38). Marking material (28), such as ink, toner, etc., is controllably introduced into the propellant stream (A) and imparted with sufficient kinetic energy thereby to be made incident upon the substrate (38). A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials (28C, 28M, 28Y, 28K) may be introduced into the channel (34) and mixed therein prior to being made incident on the substrate (38), or mixed or superimposed on the substrate (38) without re-registration. One example is a single-pass, full-color printer.
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公开(公告)号：CA2281373A1
公开(公告)日：2000-03-30
申请号：CA2281373
申请日：1999-09-03
Applicant: XEROX CORP
Inventor： ANDERSON GREGORY B , FLOYD PHILIP D , KUBBY JOEL A , HAYS DAN A , KOVACS GREGORY J , LEAN MENG H , ENDICOTT FREDERICK J , SHI AN-CHANG , VOLKEL ARMIN R , PEETERS ERIC , BOLTE STEVEN B , SMALL JONATHAN A , APTE RAJ B , NOOLANDI JAAN , JACKSON WARREN B
Abstract: A marking apparatus is disclosed in which a propellant stream is passed through a channel and directed toward a substrate. Marking material, such as ink, toner, etc., is controllably introduced into the propellant stream and imparted with sufficient kinetic energy thereby to be made incident upon a substrate. At sufficient velocity, and with appropriate marking material, the marking material may be kinetically fused to the substrate. A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials may be introduced into the channel and mixed therein prior to being made incident on the substrate, or mixed or superimposed on the substrate without re-registration. One example is a single-pass, full-color printer.
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公开(公告)号：DE3573847D1
公开(公告)日：1989-11-23
申请号：DE3573847
申请日：1985-03-11
Applicant: XEROX CORP
Inventor： HAYS DAN A , WAYMAN WILLIAM H
Abstract: An apparatus for charging toner particles wherein the apparatus contains in operative relationship a rotating means (12) for metering insulating toner particles and a deflected charging means (18) for transporting insulating toner particles, the means for metering (12), and the means for transporting (18) being self-spaced by insulating toner particles (17) situated therebetween, said means for metering and said means for transporting being electrically biased (30, 32) to predetermined potentials, and wherein the means for transporting contains a triboelectrically active coating (13) thereon. The toner particles are charged to an appropriate polarity in a charging zone (34) situated between the metering means and the transporting means. Also disclosed is an electrostatographic imaging device incorporating this apparatus.
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公开(公告)号：DE3271444D1
公开(公告)日：1986-07-03
申请号：DE3271444
申请日：1982-11-05
Applicant: XEROX CORP
Inventor： HAYS DAN A
Abstract: Apparatus and method for simultaneously removing and transporting undersirable residual insulating toner particles (25) from a flexible imaging member (10) comprising in operative relationship, a cleaning roll means (12) containing on its surface insulating carrier particles (26), said cleaning roll being charged to a predetermined potential, a deflected flexible imaging member (10) means containing residual insulating toner particles (25) thereon, a cleaning zone (30) encompassed by and situated between said cleaning roll means (12) and said deflected flexible imaging member means (10), magnet means (14) contained in the cleaning roll means, and magnetic strips (15) contained in the outer periphery of said cleaning roll means.
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公开(公告)号：DE3170076D1
公开(公告)日：1985-05-30
申请号：DE3170076
申请日：1981-01-07
Applicant: XEROX CORP
Inventor： KOPKO JOHN J , HAYS DAN A
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