发明授权
US5528270A Method for correcting density unevenness for a recording head and an
image formation apparatus provided with such a method
失效
用于校正记录头的浓度不均匀性的方法和具有这种方法的图像形成装置
- 专利标题: Method for correcting density unevenness for a recording head and an image formation apparatus provided with such a method
- 专利标题(中): 用于校正记录头的浓度不均匀性的方法和具有这种方法的图像形成装置
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申请号: US416470申请日: 1995-04-04
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公开(公告)号: US5528270A公开(公告)日: 1996-06-18
- 发明人: Hiroshi Tajika , Masato Katayama , Noribumi Koitabashi , Miyuki Matsubara
- 申请人: Hiroshi Tajika , Masato Katayama , Noribumi Koitabashi , Miyuki Matsubara
- 申请人地址: JPX 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: JPX Tokyo
- 优先权: JPX3-231645 19910911
- 主分类号: B41J2/01
- IPC分类号: B41J2/01 ; B41J2/05 ; B41J2/12 ; B41J2/35 ; B41J29/393 ; B41J29/46 ; H04N1/401
摘要:
An image formation apparatus provided according to the present invention does not generate any printing density streaks in low density areas of an image and is therefore capable of outputting stabilized images without any density unevennesses and density streaks in any tonality. The apparatus is structured so as to correct density signals in accordance with a correction table 1 for indicating the recording characteristics of each of the recording elements of the head and the recording characteristics indicated by this correction table 1, and to drive the recording head in accordance with a correction table 2, which does not allow the foregoing corrections to be made when the density signals are lower than a given density, and the density signals corrected by this correction table 2.
公开/授权文献
- US4416223A Heat exchangers 公开/授权日:1983-11-22
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