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    Liquid ejecting apparatus, color measuring method, and driving method for liquid ejecting apparatus
    121.
    发明授权
    Liquid ejecting apparatus, color measuring method, and driving method for liquid ejecting apparatus 有权

    公开(公告)号：US10406819B2

    公开(公告)日：2019-09-10

    申请号：US15714582

    申请日：2017-09-25

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Masako Fukuda ,  Masashi Kanai

    IPC: G01J3/46 ,  B41J2/21 ,  B41J13/00 ,  G01N21/25 ,  B41J11/00 ,  G01J1/02 ,  G01J3/02 ,  G01J3/50

    Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid onto a medium, a color measuring unit configured to measure color of a surface of the medium, having a light projecting unit emits a light flux to the surface of the medium and a light receiving unit receiving light obtained by reflecting light emitted from the light projecting unit on the surface of the medium, a changing unit configured to change a reflection position of light, which matches the central axis of the light flux from the light projecting unit, on the medium, and a control unit configured to set the reflection position where color measurement data indicating the highest lightness of the color measurement data pieces of the surface of the medium is obtained as a color measurement position.

    Image forming apparatus, image forming system, and calibration method
    122.
    发明授权
    Image forming apparatus, image forming system, and calibration method 有权

    公开(公告)号：US10389919B2

    公开(公告)日：2019-08-20

    申请号：US15920640

    申请日：2018-03-14

    Applicant: Ryotaro Miwa

    Inventor： Ryotaro Miwa

    IPC: H04N1/60 ,  H04N1/00 ,  G03G15/00 ,  G03G15/01 ,  G01J3/50

    Abstract: An image forming apparatus includes an image forming section to form a correction pattern, a reading unit to read the pattern and generate first data, a color converter to convert the first data into second data, a memory to store density conversion data for a recording medium, a determiner to determine whether the memory contains the conversion data for the recording medium the pattern is formed, an acquisition unit to acquire spectral measured by an external colorimeter the memory does not contain the conversion data, a first density converter to convert the spectral data into density data, a density conversion data generator to correlate the second data and the density data and generate the conversion data, a second density converter to convert the second data into the density data using the conversion data, and a correction curve generator to generate correction curve data based on the density data.

    Reflected light detecting device and reflected light detecting method
    123.
    发明授权
    Reflected light detecting device and reflected light detecting method 有权

    公开(公告)号：US10386236B2

    公开(公告)日：2019-08-20

    申请号：US15597544

    申请日：2017-05-17

    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY

    Inventor： Hiroki Hayashi ,  Ichiro Ishimaru

    IPC: G01B9/02 ,  G01J3/447 ,  G01J3/02 ,  G01J3/45 ,  G01J3/50 ,  G01N21/21 ,  G01N21/25 ,  G01N21/55

    Abstract: Reflected light detecting device and method with surface reflected light components collectively be extracted/removed when detecting reflected light arising in casting light onto target-object range having non-planar surface. The device includes: a first illuminating device causing first-measurement light in predetermined polarization direction to enter target-object first region from first direction; polarization optical system position part of first-surface reflected light enters the polarization optical system, the first-surface reflected light being the first-measurement in the first region surface; a second illuminating device causing second-measurement light in the same first-measurement light polarization direction to enter second region from second direction, the second region being on the target-object surface, different from the first region; adjusting direction of the second-measurement light optical axis so part of second-surface reflected light enters the polarization optical system, the second-surface reflected light being the second-measurement in second region surface; and detecting light having passed through the polarization optical system.

    Colorimeter
    129.
    发明授权
    Colorimeter 有权

    公开(公告)号：US10337922B2

    公开(公告)日：2019-07-02

    申请号：US15756472

    申请日：2016-08-30

    Applicant: KONICA MINOLTA, INC.

    Inventor： Yuta Yamanoi ,  Yasuhisa Kinto

    IPC: G01J3/50 ,  G01J3/02 ,  G01N21/25 ,  G01J3/46

    Abstract: Colorimeter includes an illumination light reception unit, an attached part, a detection unit, a recognition unit, a color measurement control unit, and an output unit. To the attached part, a mask member is attached to cover the illumination light reception unit. The detection unit detects parts disposed on the mask member. The recognition unit recognizes information on the kind of the mask member in accordance with a detection result by the detection unit. The color measurement control unit causes the recognition unit to recognize information on the kind of mask member in accordance with the detection result at a first timing, and on the kind of mask member in accordance with the detection result at a second timing. The output unit performs a predetermined output in response to a discordance between the information on the kind of mask member at the first timing and at the second timing.

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