发明授权
US07641309B2 Data processing apparatus, data processing method, ink jet printing apparatus, and ink jet printing method
有权
数据处理装置，数据处理方法，喷墨打印装置和喷墨打印方法
- 专利标题： Data processing apparatus, data processing method, ink jet printing apparatus, and ink jet printing method
- 专利标题（中）： 数据处理装置，数据处理方法，喷墨打印装置和喷墨打印方法
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申请号： US11204008申请日： 2005-08-16
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公开(公告)号： US07641309B2公开(公告)日： 2010-01-05
- 发明人: Minoru Teshigawara , Naoji Otsuka , Kiichiro Takahashi , Osamu Iwasaki , Tetsuya Edamura , Yoshinori Nakagawa , Satoshi Seki , Naomi Oshio
- 申请人： Minoru Teshigawara , Naoji Otsuka , Kiichiro Takahashi , Osamu Iwasaki , Tetsuya Edamura , Yoshinori Nakagawa , Satoshi Seki , Naomi Oshio
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2004-238888 20040818
- 主分类号： B41J2/21
- IPC分类号： B41J2/21
摘要：
A present invention reduces the generation of periodic uneven print density in the image in a main scanning direction. The present invention focuses attention on a fact that, when a printing head including a plurality of nozzle arrays for ejecting different inks is used to print an image and when the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively short, the displacement of ink impact positions is smaller when compared to a case where the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively long. Thus, a dot arrangement pattern allocated to the pixel data is selected so that the same pixel is printed by a combination of nozzle arrays in which an interval in the main scanning direction is relatively short.
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