发明名称 |
Ink-jet printing apparatus capable of increased image uniformity |
摘要 |
A high resolution head having smaller ejection amount and a low resolution head having larger ejection amount are employed. With respect to an image to be printed, an image separating portion separates a portion of a field in an image from a portion other than the field. For the field, printing is performed by the low resolution head through process of an image processing portion and a head control portion. As a result of this, for the field in the image, large dot is formed to reduce gap between the dots. Thus, color of the field can be uniform.
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申请公布号 |
US6149257(A) |
申请公布日期 |
2000.11.21 |
申请号 |
US19970893569 |
申请日期 |
1997.07.11 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YANAKA, TOSHIYUKI;KASHINO, TOSHIO;ASAKAWA, YOSHIE |
分类号 |
B41J3/54;B41J2/01;B41J2/05;B41J2/07;B41J2/175;B41J2/21;G06K15/10;(IPC1-7):B41J2/01 |
主分类号 |
B41J3/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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