42.
    发明专利
    未知

    公开(公告)号:DE69733980D1

    公开(公告)日:2005-09-22

    申请号:DE69733980

    申请日:1997-06-06

    Applicant: CANON KK

    Abstract: A liquid ejection method includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the bubble in the liquid, a movable member disposed faced to the bubble generation region and displaceable between a first position and a second position further from the bubble generation region than the first position; displacing the movable member from the first position to the second position by pressure produced by the generation of the bubble in the bubble generating portion to permit expansion of the bubble more in a downstream side closer to the ejection outlet than in an upstream side; supplying, to a heat generating element for applying thermal energy to the bubble generating region, a driving pulse divided into a first pulse and an adjacent second pulse with interval time therebetween; pre-heating the liquid by the first pulse to an extent not enough to eject the liquid through the ejection outlet; generating a bubble by heating the liquid by the second pulse to eject the liquid through the ejection outlet; controlling a degree of pre-heating of the liquid by changing at least one of a pulse width of the first pulse or the interval time.

    METHOD OF MEASURING LIQUID COMPOSITION, LIQUID COMPOSITION, INK SET, METHOD FOR FORMING COLORED PORTION ON RECORDING MEDIUM, AND INK-JET RECORDING APPARATUS

    公开(公告)号:CA2358409C

    公开(公告)日:2004-09-28

    申请号:CA2358409

    申请日:2001-10-05

    Applicant: CANON KK

    Abstract: The invention relates to a liquid composition measurement method. One embodiment of the method comprises the steps of: i) subjecting a liquid composition containing fine particles and a solvent to the following pretreatment steps (a) to (c) to form an agglomerate of fine particles: (a) evaporating the solvent of the liquid composition at 120.degree.C for 10 yours in atmosphere, and drying the liquid composition; (b) burning the dried liquid composition resulting from the pretreatment step (a) at 700.degree.C after raising temperature from 120.degree.C to 700.degree.C over one hour; (c) cooling a burned product obtained in the pretreatment step (b) to room temperature, powdering the burned product to obtain agglomerates of the fine particle; and ii) vacuum degassing the agglomerates at 120.degree.C for 8 hours, and measuring physical properties of pores of the agglomerates by a nitrogen adsorption and desorption method.

    METHOD OF MEASURING LIQUID COMPOSITION, LIQUID COMPOSITION, INK SET, METHOD FOR FORMING COLORED PORTION ON RECORDING MEDIUM, AND INK-JETRECORDING APPARATUS

    公开(公告)号:CA2358409A1

    公开(公告)日:2002-04-06

    申请号:CA2358409

    申请日:2001-10-05

    Applicant: CANON KK

    Abstract: The invention relates to a liquid composition measurement method. One embodiment of the method comprises the steps of: i) subjecting a liquid composition containing fine particles and a solvent to the following pretreatment steps (a) to (c) to form an agglomerate of fine particles: (a) evaporating the solvent of the liquid composition at 120.degree.C for 10 yours in atmosphere, and drying the liquid composition; (b) burning the dried liquid composition resulting from the pretreatment step (a) at 700.degree.C after raising temperature from 120.degree.C to 700.degree.C over one hour; (c) cooling a burned product obtained in the pretreatment step (b) to room temperature, powdering the burned product to obtain agglomerates of the fine particle; and ii) vacuum degassing the agglomerates at 120.degree.C for 8 hours, and measuring physical properties of pores of the agglomerates by a nitrogen adsorption and desorption method.

    APARATO PARA EL TRATAMIENTO DE IMAGENES Y METODO DE TRATAMIENTO DE IMAGENES.

    公开(公告)号:ES2322887T3

    公开(公告)日:2009-07-01

    申请号:ES01310025

    申请日:2001-11-29

    Applicant: CANON KK

    Abstract: Aparato de tratamiento de imágenes (51) para realizar el tratamiento de difusión de errores en los datos de imagen multivalente que tiene varios componentes de color y generar el resultado de dicho tratamiento de difusión de errores, caracterizado porque comprende: primeros medios de determinación (34) para, tras ejecutar dicho tratamiento de difusión de errores en un primer componente de color entre los diversos componentes de color, determinar el valor umbral utilizado en dicho tratamiento de difusión de errores utilizando una tabla que muestra la relación entre los diversos valores de la densidad del segundo componente de color y los diversos valores umbral; primeros medios de difusión de errores (34) para ejecutar dicho tratamiento de difusión de errores en dicho primer componente de color basándose en el valor umbral determinado mediante dichos primeros medios de determinación; primeros medios de salida (35) para generar el resultado de la ejecución de dicho tratamiento de difusión de errores mediante dichos primeros medios de ejecución de difusión de errores; segundos medios de determinación (34) para, tras ejecutar dicho tratamiento de difusión de errores en dicho segundo componente de color entre los diversos componentes de color, determinar el valor umbral utilizado en el tratamiento de difusión de errores utilizando una tabla que muestra la relación entre los diversos valores de la densidad del primer componente de color y los diversos valores umbral; segundos medios de difusión de errores (34) para realizar dicho tratamiento de difusión de errores en dicho segundo componente de color basándose en el valor umbral determinado mediante dichos segundos medios de determinación; y segundos medios de salida (35) para generar el resultado de la ejecución de dicho tratamiento de difusión de errores mediante dichos segundos medios de difusión de errores.

    50.
    发明专利
    未知

    公开(公告)号:DE60132408T2

    公开(公告)日:2009-01-29

    申请号:DE60132408

    申请日:2001-09-03

    Applicant: CANON KK

    Abstract: The ink jet recording head 1 of the invention is provided with a black ink nozzle array Bkl for black ink constituting first ink, and plural color ink nozzle arrays C1 to C3 for discharging color inks. In a color ink nozzle array C1 having the shortest print distance from the black print formed by the black ink nozzle array Bkl, there is introduced a color ink showing the highest mutual reactivity with the black ink, and a color ink showing the next highest mutual reactivity is introduced into a nozzle array C2 having the next shortest print distance, and a color ink showing the lowest mutual reactivity is introduced into a nozzle array C3 having the longest print distance.

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