发明授权
- 专利标题: Printing method and printing apparatus
- 专利标题(中): 印刷方法和印刷装置
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申请号: US10784262申请日: 2004-02-24
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公开(公告)号: US07185964B2公开(公告)日: 2007-03-06
- 发明人: Hidehiko Kanda , Takeji Niikura , Tetsuya Saito
- 申请人: Hidehiko Kanda , Takeji Niikura , Tetsuya Saito
- 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: JP2003-049972 20030226; JP2004-015521 20040123
- 主分类号: B41J2/205
- IPC分类号: B41J2/205
摘要:
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.
公开/授权文献
- US20040165022A1 Printing method and printing apparatus 公开/授权日:2004-08-26