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    • 6. 发明授权
    • Method and apparatus for ink-jet recording with inks having different
densities
    • 用不同密度的油墨进行喷墨记录的方法和装置
    • US5825377A
    • 1998-10-20
    • US901957
    • 1997-07-29
    • Fumihiro GotohHiromitsu HirabayashiToshio KashinoHiroshi TajikaYuji AkiyamaHitoshi SugimotoMiyuki MatsubaraHidehiko Kanda
    • Fumihiro GotohHiromitsu HirabayashiToshio KashinoHiroshi TajikaYuji AkiyamaHitoshi SugimotoMiyuki MatsubaraHidehiko Kanda
    • H04N1/40H04N1/52B41J2/205
    • H04N1/40087H04N1/52
    • An ink jet recording apparatus and ink jet recording method record using different kinds of ink each having the same series color and a different density. The jet recording apparatus includes a converting unit for converting an input image density signal into an output image density signal, a binary unit for converting the output image density signal into binary data, an inverting unit for inverting the binary data, and a distributing unit for distributing the binary data inverted and binary data to be inverted to drive data for an ink discharge unit and drive data for another ink discharge unit. Density unevenness and texture which arise from an image process, particularly a binary process, can be prevented. Different kinds of ink, each of which has the same series color and a different density, are respectively scanned so as not to overlap on the same pixel. Density unevenness due to ink soaking can be suppressed because different kinds of ink each having the same series color and a different density, are not shot at the same position.
    • 喷墨记录装置和喷墨记录方法使用具有相同系列颜色和不同密度的不同种类的油墨进行记录。 喷墨记录装置包括:转换单元,用于将输入图像浓度信号转换为输出图像浓度信号;二进制单位,用于将输出图像浓度信号转换为二进制数据;反转单元,用于反转二进制数据;以及分配单元, 分配要反转的二进制数据反相和二进制数据以驱动用于排墨单元的数据和用于另一个排墨单元的驱动数据。 可以防止由图像处理,特别是二进制处理引起的密度不均匀和纹理。 分别扫描具有相同系列颜色和不同密度的不同种类的墨,以便不在同一像素上重叠。 由于不同种类的具有相同系列颜色和不同密度的油墨在相同的位置处不被喷射,所以能够抑制由于油墨浸渍引起的密度不均匀。