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1.发明申请公开(公告)号：US20200156371A1
公开(公告)日：2020-05-21
申请号：US16327093
申请日：2018-05-30
发明人： Dejiang Zhao
摘要： An inkjet amount measuring system, an inkjet amount measuring method and an inkjet amount controlling method. The inkjet amount measuring system includes: an inkjet printing spray head; and electricity applying device configured to apply electric charges to ink droplets passing through a nozzle of the inkjet printing spray head; a magnetic field generating device configured to generate a magnetic field to deflect the charged ink droplets; a test board having a surface for carrying ink droplets; and a processor configured to calculate an amount of ink droplets according to positions of falling points of the ink droplets on the surface of the test board, an electric charge amount of the ink droplets, and a magnetic field intensity.
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公开(公告)号：US5808637A
公开(公告)日：1998-09-15
申请号：US451788
申请日：1995-05-26
CPC分类号： B41J2/04526 , B41J2/0458 , B41J2/10 , B41J2/11
摘要： A ferromagnetic ink is formed by a dispersion of ferromagnetic particles mixed with an ink base. Drops of the ink are ejected from an inkjet printhead to print characters or markings onto a print media sheet. To resist clogging printhead nozzles, the dispersed ferromagnetic particles have an average diameter equal to or less than approximately 1/10 of the average nozzle diameter. A magnetic field is applied to the ejected ink drops during printing to direct, or more specifically bias, the ink drops toward the print media. The magnetic "biasing" force aids in maintaining drop shape along the ejection path, and in reducing bounce. As a result, edge roughness and spray are decreased so as to improve print quality. In alternative embodiments, the magnetic field source is formed by a permanent magnet or electromagnet. Such a field source is integral to or adjacent to a printer platen. The field source is located adjacent to the printhead and in several embodiments extends along the scan path of the printhead. In one embodiment the field source is formed on the ink cartridge.
摘要翻译： 通过与油墨基体混合的铁磁性颗粒的分散体形成铁磁性油墨。 墨水滴从喷墨打印头喷出以将字符或标记打印到打印介质片上。 为了防止打印头喷嘴堵塞，分散的铁磁颗粒的平均直径等于或小于平均喷嘴直径的大约+ E，fra 1/10 + EE。 在打印期间将磁场施加到喷射的墨滴，以指示墨滴朝向打印介质，或更具体地偏压墨滴。 磁“偏置”力有助于沿喷射路径保持液滴形状，并且减少反弹。 结果，边缘粗糙度和喷雾量降低，从而提高打印质量。 在替代实施例中，磁场源由永磁体或电磁体形成。 这样的场源与打印机压板成一体或相邻。 场源位于与打印头相邻的位置，并且在若干实施例中沿打印头的扫描路径延伸。 在一个实施例中，场源形成在墨盒上。
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3.发明授权
公开(公告)号：US3979756A
公开(公告)日：1976-09-07
申请号：US534043
申请日：1974-12-18
申请人： Edward F. Helinski , Jack L. Zable
发明人： Edward F. Helinski , Jack L. Zable
摘要： In an ink jet recorder, a ferrofluid ink is supplied under pressure to a nozzle to form a continuous ink jet stream. The jet stream is subjected to two or more perturbation forces out-of-phase with each other causing the satellites and drops to fast merge. Plural electromagnetic transducers are located at spaced locations along the stream and energized to produce out-of-phase perturbations on the stream. The spacing of the transducers is differentially related to spacing of varicosities or ink drops produced by first transducer. The out-of-phase perturbations can also be obtained using an electromechanical transducer and electromagnetic transducers located out-of-phase or energized out-of-phase with each other.
摘要翻译： 在喷墨记录器中，将铁磁流体油墨在压力下供给喷嘴以形成连续的喷墨流。 喷气流受到两个或更多的彼此相位的扰动力，导致卫星和液滴快速合并。 多个电磁换能器位于沿着流的间隔位置并被激励以在流上产生异相扰动。 换能器的间距与由第一换能器产生的静脉曲张或墨滴的间距有差异。 异相扰动也可以使用机电换能器和位于异相或相位异相的电磁换能器来获得。
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公开(公告)号：US20230415483A1
公开(公告)日：2023-12-28
申请号：US18034782
申请日：2020-11-06
申请人： LG ELECTRONICS INC.
发明人： Wonjae CHANG , Jinsung KIM , Byungjun KANG , Myoungsoo KIM , Junghoon KIM
CPC分类号： B41J2/145 , B41J2/10 , B41J2/04573
摘要： An inkjet head device comprises a body comprising light emitting devices, a nozzle installed on a lower side of the body to spray the light emitting devices onto the substrate in units of droplets, and a first guide part disposed in the body to guide the light emitting devices to the nozzle in a line. Since the light emitting devices arranged in a line by the first guide part are dropped on the substrate in units of a predetermined amount of droplets, the number of light emitting devices included in each droplet may be the same or similar. Thus, since the same or similar number of light-emitting elements are disposed or aligned in each sub-pixel, the luminance in each sub-pixel obtained by the light-emitting elements can be uniform.
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公开(公告)号：US11370219B2
公开(公告)日：2022-06-28
申请号：US17017644
申请日：2020-09-10
发明人： Lai Yu Leo Tse , Kira Barton , Ethan John McMillan
摘要： An electrohydrodynamic print head includes a plurality of nozzles and a common electrode. Separately controllable electrostatic fields between the common electrode and each nozzle are provided. The common electrode can also shield adjacent electrostatic fields from each other. Each nozzle can be associated with separately controllable gas flow fields and separately back pressures. The print head enables simultaneous e-jet printing of different printing fluids and/or different resolutions. The print head may be part of a printing system with interchangeable cartridges. Each cartridge has multiple nozzles, and printing fluid extraction parameters can be made separately controllable for each nozzle.
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公开(公告)号：US4025925A
公开(公告)日：1977-05-24
申请号：US646130
申请日：1976-01-02
CPC分类号： B41J2/10
摘要： A line printer has a print head with plural nozzles arranged in a single row generally transverse to the direction of relative motion of the print head and a print medium. The nozzles are spaced plural dot positions from each other corresponding to a plural dot segment of a single dot matrix character stroke. When the row of nozzles is slanted relative to the direction of motion, drops from the nozzles are used to print stroke segments in plural character strokes simultaneously.
摘要翻译： 行式打印机具有打印头，打印头具有多个喷嘴，其排列成大致横向于打印头和打印介质的相对运动方向的单个排。 这些喷嘴与单点阵字符行程的多个点段对应地彼此间隔开多个点位置。 当喷嘴列相对于运动方向倾斜时，来自喷嘴的液滴被用来同时打印多个字符笔画中的笔划段。
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公开(公告)号：US11633951B2
公开(公告)日：2023-04-25
申请号：US17045301
申请日：2019-04-05
申请人： Société BIC
发明人： Seung Hun Han , Jeongmi Ha , Jin Sung Cha , Woo Yong Jung , Jiyoung Ryu , Jae Hyun Joo
IPC分类号： B41J2/10 , B41J11/00 , B43K8/00 , C09D11/101 , C09D11/50
摘要： This disclosure relates to a printing device for printing or dispensing a curable printing composition which is capable of changing color in response to the application of a magnetic field in the non-cured state. The printing device may be a handheld device such as a portable pen. The present disclosure further relates to curable compositions, cartridges and methods which may be used in combination with the aforementioned printing devices or in other applications.
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公开(公告)号：US4107698A
公开(公告)日：1978-08-15
申请号：US767403
申请日：1977-02-10
摘要： In a magnetic ink jet printer a continuous stream of ferrofluid ink drops is projected toward a print medium. A magnetic selector located proximate the stream is operated in synchronism with the flight of the ink drops for deflecting individual unwanted ink drops into a drop catcher. Due to fringing effects produced by the selector when unwanted drops are selected, adjacent print drops are deflected a lesser amount from the initial stream trajectory. Print drops not affected by the fringe magnetic field produced to select unwanted drops are subjected to a compensation deflection depending on their position relative to the unwanted drops so that all print drops follow the same trajectory, after passing the magnetic selector in their travel through a vertical deflector and deposition onto the print medium.
摘要翻译： 在磁性喷墨打印机中，向印刷介质投射连续的铁磁流体墨滴。 位于流附近的磁选择器与墨滴的飞行同步地操作，用于将各个不需要的墨滴偏转成液滴捕获器。 由于选择器在选择不需要的液滴时产生的边缘效应，相邻的印刷液滴从初始流轨迹偏转较少量。 不受影响产生以选择不想要的液滴的影响的打印液滴根据其相对于不需要的液滴的位置而受到补偿偏转，使得所有打印墨滴在通过垂直方向通过磁选择器之后遵循相同的轨迹 偏转器和沉积到打印介质上。
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9.发明授权
公开(公告)号：US4027308A
公开(公告)日：1977-05-31
申请号：US429414
申请日：1973-12-28
申请人： George J. Fan , Richard A. Toupin
发明人： George J. Fan , Richard A. Toupin
摘要： One or more magnetic fields having non-uniform gradients is periodically applied to a magnetic liquid stream, which is preferably isotropic and virtually free of remanence, to create perturbations in the stream so as to form droplets therefrom with substantially uniform spacing and of substantially uniform size. If more than one of the magnetic fields is applied, the maximum strength of each field is spaced an integral multiple wave length from the maximum strength of the adjacent magnetic field with each magnetic field having substantially the same maximum strength. The wave length of the perturbation is preferably between 4d and 8d where d is the diameter of the stream.
摘要翻译： 一个或多个具有不均匀梯度的磁场周期性地施加到磁性液体流，磁性液体流优选是各向同性的并且实际上没有剩磁，从而在流中产生扰动，从而形成具有基本上均匀的间距和基本均匀尺寸的液滴 。 如果施加多于一个磁场，则每个磁场的最大强度与相邻磁场的最大强度隔开整数倍的波长，每个磁场具有基本上相同的最大强度。 扰动的波长优选在4d和8d之间，其中d是流的直径。
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公开(公告)号：US3959797A
公开(公告)日：1976-05-25
申请号：US533414
申请日：1974-12-16
申请人： Donald F. Jensen
发明人： Donald F. Jensen
CPC分类号： B41J2/10
摘要： An ink jet printer prints dot matrix characters by removing unwanted drops from a sequence of uniformly spaced drops in an ink jet stream and subjecting the remaining print drops to a vertical raster deflection in timed relation with relative horizontal motion of the jet stream and a record medium. Selected print drops are individually deflected fractional amounts in either the horizontal or vertical direction prior to the vertical raster deflection to cause the selected print drops to be deposited at positions intermediate the coordinate intercepts of a rectilinear matrix pattern to cause dot matrix characters to be printed with arcuate line segments and various angles corresponding with conventional character shapes.
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