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公开(公告)号：DE60132746T2
公开(公告)日：2008-06-19
申请号：DE60132746
申请日：2001-11-12
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ROLLER GEORGE J , GALAMBOS PAUL , PETER FRANK J , ZAVADIL KEVIN , GIVLER RICHARD C , CROWLEY JNR JOSEPH
Abstract: A bi-directional fluid ejector (200) operates on the principle of electrostatic attraction. The fluid ejector includes a sealed dual diaphragm arrangement (210), an electrode arrangement (220,222) that is parallel and opposite to the sealed diaphragms, and a structure (240) which contains the fluid to be ejected. A diaphragm chamber (216,218) containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms (210). At least one nozzle hole (242,244) is formed in a faceplate of the ejector over one of the diaphragms (210). A drive signal is applied to at least one electrode (220,222) of the electrode arrangement to generate an electrostatic field between the electrode (220,222) and a first one of the diaphragms (210). The first diaphragm is attracted towards the electrode (222) by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms (210). The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber (218) causes the second diaphragm (210) to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole (242). After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm (210) and/or through an applied force generated by the other electrode (220).
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公开(公告)号：DE60132746D1
公开(公告)日：2008-03-27
申请号：DE60132746
申请日：2001-11-12
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ROLLER GEORGE J , GALAMBOS PAUL , PETER FRANK J , ZAVADIL KEVIN , GIVLER RICHARD C , CROWLEY JNR JOSEPH
Abstract: A bi-directional fluid ejector (200) operates on the principle of electrostatic attraction. The fluid ejector includes a sealed dual diaphragm arrangement (210), an electrode arrangement (220,222) that is parallel and opposite to the sealed diaphragms, and a structure (240) which contains the fluid to be ejected. A diaphragm chamber (216,218) containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms (210). At least one nozzle hole (242,244) is formed in a faceplate of the ejector over one of the diaphragms (210). A drive signal is applied to at least one electrode (220,222) of the electrode arrangement to generate an electrostatic field between the electrode (220,222) and a first one of the diaphragms (210). The first diaphragm is attracted towards the electrode (222) by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms (210). The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber (218) causes the second diaphragm (210) to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole (242). After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm (210) and/or through an applied force generated by the other electrode (220).
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公开(公告)号：DE69313479D1
公开(公告)日：1997-10-09
申请号：DE69313479
申请日：1993-02-01
Applicant: XEROX CORP
Inventor： ISGANITIS LOUIS V , CARREIRA LEONARD M , RADIGAN EDWARD J , PETER KENNETH C , GOORAY ARTHUR M
Abstract: Disclosed is a printing process which comprises applying in imagewise fashion to a substrate an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter, and subsequently exposing the substrate to microwave radiation, thereby drying the images on the substrate. A specific embodiment of the invention is directed to a thermal ink jet printing process which comprises (1) incorporating into a thermal ink jet printing apparatus an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter; (2) heating the ink in an imagewise pattern to cause bubbles to form therein, thereby causing droplets of the ink to be ejected in an imagewise pattern onto a substrate, thereby generating images on the substrate; and (3) exposing the substrate to microwave radiation, thereby drying the images on the substrate.
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公开(公告)号：DE69300641T2
公开(公告)日：1996-05-15
申请号：DE69300641
申请日：1993-02-01
Applicant: XEROX CORP
Inventor： ISGANITIS LOUIS V , CARREIRA LEONARD M , RADIGAN EDWARD J , SCHWARZ WILLIAM M , GOORAY ARTHUR M
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公开(公告)号：DE60126893T2
公开(公告)日：2007-09-13
申请号：DE60126893
申请日：2001-11-12
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ROLLER GEORGE J , GALAMBOS PAUL , PETER FRANK J , ZAVALDI KEVIN , GIVLER RICHARD C , HUMPHREYS RUSSEL D , SNIEGOWSKI JERFFRY J , CROWLEY JOSEPH JR
Abstract: A primary coil (130) and a secondary coil (140) are situated in the ejector, which has a resiliently mounted movable piston (110) to eject fluid through a nozzle (122). A drive signal is applied to cause current to flow in the primary coil (130). The current flow generates a magnetic field that induces a current in the secondary coil (140). Either the primary coil (130) or the secondary coil (140) is associated with the piston (110) and the other is associated with a fixed structure (120) of the ejector. As a result, a magnetic force is generated that pushes the piston (110) either toward a nozzle plate (120) so that a drop is ejected through the nozzle (122) or away from the nozzle plate so that fluid fills the chamber. When the drive signal is turned off, the piston resiliently returns to its at-rest position, thereby either refilling the ejected fluid or ejecting a drop of fluid through the nozzle (122). In other embodiments, the nozzle plate is made of a magnetic material, or is coated with or connected to a magnetic material. Switching the direction of the current changes the magnetic force between attraction and repulsion and may be used positively to move the piston in both directions.
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Patent Agency Ranking
公开(公告)号：GB2206846B
公开(公告)日：1991-10-30
申请号：GB8814791
申请日：1988-06-22
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ABRAMSOHN DENNIS ALAN , BOROSTYAN STEPHEN M , MAMMINO JOSEPH
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公开(公告)号：DE60228151D1
公开(公告)日：2008-09-25
申请号：DE60228151
申请日：2002-02-13
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ROLLER GEORGE J , CROWLEY JOSEPH M JR , GALAMBOS PAUL , PETER FRANK , ZAVADIL KEVIN , GIVLER RICHARD , CARREIRA LEONARD M
Abstract: A fluid ejection system according to this invention operates on the principle of electrostatic or magnetic attraction. In various exemplary embodiments, the fluid ejection system includes a sealed diaphragm arrangement having at least one diaphragm portion and a diaphragm chamber defined at least partially by the at least one diaphragm portion, a nozzle hole located over the at least one diaphragm portion, an ejection chamber defined between the nozzle hole and the least one diaphragm portion and a secondary dielectric fluid reservoir containing a secondary dielectric fluid. The ejection chamber receives a primary fluid to be ejected. The secondary dielectric fluid reservoir is in fluid communication with the diaphragm chamber to supply the secondary dielectric fluid to the diaphragm chamber. In various exemplary embodiments, the secondary dielectric fluid is a liquid, a substantially incompressible fluid, and/or a high performance dielectric fluid having a dielectric constant greater than 1.
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公开(公告)号：DE69313479T2
公开(公告)日：1998-03-19
申请号：DE69313479
申请日：1993-02-01
Applicant: XEROX CORP
Inventor： ISGANITIS LOUIS V , CARREIRA LEONARD M , RADIGAN EDWARD J , PETER KENNETH C , GOORAY ARTHUR M
Abstract: Disclosed is a printing process which comprises applying in imagewise fashion to a substrate an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter, and subsequently exposing the substrate to microwave radiation, thereby drying the images on the substrate. A specific embodiment of the invention is directed to a thermal ink jet printing process which comprises (1) incorporating into a thermal ink jet printing apparatus an ink composition which comprises an aqueous liquid vehicle, a colorant, and an ionic compound at least partially ionizable in the liquid vehicle, said ink composition having a conductivity of at least about 10 milliSiemens per centimeter; (2) heating the ink in an imagewise pattern to cause bubbles to form therein, thereby causing droplets of the ink to be ejected in an imagewise pattern onto a substrate, thereby generating images on the substrate; and (3) exposing the substrate to microwave radiation, thereby drying the images on the substrate.
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公开(公告)号：GB2185424B
公开(公告)日：1989-10-25
申请号：GB8700781
申请日：1987-01-14
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , HEEKS GEORGE J , REALE LOUIS , SHAH DIPIKA R
IPC: B01D53/34 , B01D39/00 , B01D39/14 , B01D39/20 , B01D53/46 , B01D53/56 , B01D53/66 , B01D53/81 , G03G21/00 , G03G21/20
Abstract: A multipurpose filtering material particularly for use in electrostatographic reproducing apparatus has a foraminous support matrix having a plurality of interconnecting voids to permit low impedance to the flow of gaseous material but sufficient to trap particulate material entrained in the gaseous material which is coated with a thin dehydrated alkaline film of an alkali metal silicate to neutralize nitrogen oxide species in the gaseous material and has adhesively bound thereto a particulate neutralizer for another noxious gas the surface of which is substantially exposed to the flow of gaseous material. A filter may be placed in electrostatographic reproducing apparatus at the inlet or outlet of an air stream passing therethrough to neutralize nitrogen oxide species and ozone generated by the corona discharge device, and ammonia from the incoming air.
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公开(公告)号：DE60126893D1
公开(公告)日：2007-04-12
申请号：DE60126893
申请日：2001-11-12
Applicant: XEROX CORP
Inventor： GOORAY ARTHUR M , ROLLER GEORGE J , GALAMBOS PAUL , PETER FRANK J , ZAVALDI KEVIN , GIVLER RICHARD C , HUMPHREYS RUSSEL D , SNIEGOWSKI JERFFRY J , CROWLEY JOSEPH JR
Abstract: A primary coil (130) and a secondary coil (140) are situated in the ejector, which has a resiliently mounted movable piston (110) to eject fluid through a nozzle (122). A drive signal is applied to cause current to flow in the primary coil (130). The current flow generates a magnetic field that induces a current in the secondary coil (140). Either the primary coil (130) or the secondary coil (140) is associated with the piston (110) and the other is associated with a fixed structure (120) of the ejector. As a result, a magnetic force is generated that pushes the piston (110) either toward a nozzle plate (120) so that a drop is ejected through the nozzle (122) or away from the nozzle plate so that fluid fills the chamber. When the drive signal is turned off, the piston resiliently returns to its at-rest position, thereby either refilling the ejected fluid or ejecting a drop of fluid through the nozzle (122). In other embodiments, the nozzle plate is made of a magnetic material, or is coated with or connected to a magnetic material. Switching the direction of the current changes the magnetic force between attraction and repulsion and may be used positively to move the piston in both directions.
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