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公开(公告)号:EP0517543A3
公开(公告)日:1992-12-23
申请号:EP92305185.8
申请日:1992-06-05
发明人: Takagi, Shinji, c/o Canon Kabushiki Kaisha , Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
CPC分类号: H04N1/128 , B41J2/2128 , B41J2/2132 , G06K15/105 , G06K15/107 , G06K2215/101 , G06K2215/111 , H04N1/1911 , H04N2201/0414
摘要: After an ink-jet recording head (1) with a plurality of discharging portions (Nos. 1-128) arranged is main-scanned in a direction perpendicular to the direction of the discharging portion arrangement to record a first image area, sub-scanning of the head is performed. Before the head is main-scanned to record a second image area, the sub-scanning is performed so that a few discharging portions (Nos. 1-3) on an upper edge portion of the head (1) in second main-scanning overlap part of the first image area. Ink droplets land on pixels in the overlapping portion twice for each main-scanning, and image density of the pixels in the overlapping portion is controlled by the sum number of the landing ink droplets. This enables image density unevenness of image density, a "black stripe banding" or a "white stripe banding" in a boundary of an image area being recorded in each main-scanning to be markedly reduced.
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公开(公告)号:EP0517519A3
公开(公告)日:1992-12-30
申请号:EP92305132.0
申请日:1992-06-04
发明人: Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Tamura, Yasuyuki, c/o Canon Kabushiki Kaisha , Takahashi, Hiroto, c/o Canon Kabushiki Kaisha , Takagi, Shinji, c/o Canon Kabushiki Kaisha , Shioya, Makoto, c/o Canon Kabushiki Kaisha , Tachihara, Masayoshi, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
IPC分类号: B41J2/205
CPC分类号: B41J2/2132 , B41J19/16
摘要: Each of pixels (No. 1 to N) of recorded image is formed by a plurality of dots composed with ink droplets ejected from a plurality of different orifices (No. 1 to M) at individual different main-scannings (No. 1, 2, 3 and so on). With this recording process, the variation of ink ejection characteristics between a plurality of orifices in a recording head can be reduced in forming pixels.
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公开(公告)号:EP0517543A2
公开(公告)日:1992-12-09
申请号:EP92305185.8
申请日:1992-06-05
发明人: Takagi, Shinji, c/o Canon Kabushiki Kaisha , Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
CPC分类号: H04N1/128 , B41J2/2128 , B41J2/2132 , G06K15/105 , G06K15/107 , G06K2215/101 , G06K2215/111 , H04N1/1911 , H04N2201/0414
摘要: After an ink-jet recording head (1) with a plurality of discharging portions (Nos. 1-128) arranged is main-scanned in a direction perpendicular to the direction of the discharging portion arrangement to record a first image area, sub-scanning of the head is performed. Before the head is main-scanned to record a second image area, the sub-scanning is performed so that a few discharging portions (Nos. 1-3) on an upper edge portion of the head (1) in second main-scanning overlap part of the first image area. Ink droplets land on pixels in the overlapping portion twice for each main-scanning, and image density of the pixels in the overlapping portion is controlled by the sum number of the landing ink droplets. This enables image density unevenness of image density, a "black stripe banding" or a "white stripe banding" in a boundary of an image area being recorded in each main-scanning to be markedly reduced.
摘要翻译: 在具有多个排列部分(No.1-128)的喷墨记录头(1)在垂直于排出部分布置的方向的方向上进行主扫描以记录第一图像区域,副扫描 的头部被执行。 在头被主扫描以记录第二图像区域之前,执行副扫描,使得在第二主扫描中的头部(1)的上边缘部分上的几个排出部分(No.1-3)重叠 第一个图像区域的一部分。 在每个主扫描中,墨水滴在重叠部分中的像素上着陆两次,并且重叠部分中的像素的图像密度由着陆墨滴的总和数来控制。 这使得图像浓度的图像浓度不均匀性,在每个主扫描中记录的图像区域的边界中的“黑条带条带”或“白条带条带”显着减小。
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公开(公告)号:EP0517519A2
公开(公告)日:1992-12-09
申请号:EP92305132.0
申请日:1992-06-04
发明人: Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Tamura, Yasuyuki, c/o Canon Kabushiki Kaisha , Takahashi, Hiroto, c/o Canon Kabushiki Kaisha , Takagi, Shinji, c/o Canon Kabushiki Kaisha , Shioya, Makoto, c/o Canon Kabushiki Kaisha , Tachihara, Masayoshi, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
IPC分类号: B41J2/205
CPC分类号: B41J2/2132 , B41J19/16
摘要: Each of pixels (No. 1 to N) of recorded image is formed by a plurality of dots composed with ink droplets ejected from a plurality of different orifices (No. 1 to M) at individual different main-scannings (No. 1, 2, 3 and so on). With this recording process, the variation of ink ejection characteristics between a plurality of orifices in a recording head can be reduced in forming pixels.
摘要翻译: 记录图像的每个像素(No.1〜N)由在各个不同的主扫描(No.1,2)处从多个不同孔(No.1〜M)喷出的墨滴构成的多个点形成 ,3等等)。 通过该记录处理,可以在形成像素时减少记录头中的多个孔口之间的喷墨特性的变化。
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公开(公告)号:EP0517519B1
公开(公告)日:1999-04-14
申请号:EP92305132.0
申请日:1992-06-04
发明人: Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Tamura, Yasuyuki, c/o Canon Kabushiki Kaisha , Takahashi, Hiroto, c/o Canon Kabushiki Kaisha , Takagi, Shinji, c/o Canon Kabushiki Kaisha , Shioya, Makoto, c/o Canon Kabushiki Kaisha , Tachihara, Masayoshi, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
IPC分类号: B41J2/205
CPC分类号: B41J2/2132 , B41J19/16
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公开(公告)号:EP0517543B1
公开(公告)日:1997-09-17
申请号:EP92305185.8
申请日:1992-06-05
发明人: Takagi, Shinji, c/o Canon Kabushiki Kaisha , Tanaka, Hideki, c/o Canon Kabushiki Kaisha , Kimura, Tatsuo, c/o Canon Kabushiki Kaisha , Ashiwa, Jun, c/o Canon Kabushiki Kaisha
IPC分类号: B41J2/205
CPC分类号: H04N1/128 , B41J2/2128 , B41J2/2132 , G06K15/105 , G06K15/107 , G06K2215/101 , G06K2215/111 , H04N1/1911 , H04N2201/0414
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