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    • 7. 发明授权
    • Printing method and printing apparatus
    • 印刷方法和印刷装置
    • US07185964B2
    • 2007-03-06
    • US10784262
    • 2004-02-24
    • Hidehiko KandaTakeji NiikuraTetsuya Saito
    • Hidehiko KandaTakeji NiikuraTetsuya Saito
    • B41J2/205
    • B41J2/205
    • A printing method and printing apparatus can print a high-quality image free from any visual graininess by reducing density unevenness and color unevenness. In printing by discharging ink from a printhead onto a printing medium, the printing apparatus executes either one of (A) a first printing operation mode in which one dot layout pattern is assigned to a plurality of pixels at the same gradation level and printing is done on the basis of the assigned dot layout pattern, or (B) a second printing operation mode in which plural types of dot layout patterns are assigned to a plurality of pixels at the same gradation level and printing is done on the basis of the assigned dot layout patterns.
    • 打印方法和打印设备可以通过减少浓度不均匀性和颜色不均匀性来打印没有任何视觉颗粒性的高质量图像。 在通过从打印头排出墨水到打印介质的打印中,打印装置执行以下任一个(A)第一打印操作模式,其中一个点布局图案被分配给相同灰度级的多个像素,并且打印完成 (B)第二打印操作模式,其中将多种类型的点布局图案分配给相同灰度级的多个像素,并且基于所分配的点进行打印 布局模式。