发明公开
- 专利标题： An ink tank unit, an ink jet cartridge having said ink tank unit and an ink jet apparatus having said ink jet cartridge
- 专利标题（中）： 墨槽，喷墨墨盒与墨仓和喷墨装置与它一般特征。
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申请号： EP94109973.1申请日： 1994-06-28
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公开(公告)号： EP0631874A3公开(公告)日： 1995-07-05
- 发明人: Tajima, Hiroki, c/o Canon Kabushiki Kaisha , Kashino, Toshio, c/o Canon Kabushiki Kaisha , Higuma, Masahiko, c/o Canon Kabushiki Kaisha , Okazaki, Takeshi, c/o Canon Kabushiki Kaisha
- 申请人： CANON KABUSHIKI KAISHA
- 申请人地址： 30-2, Shimomaruko 3-chome Ohta-ku Tokyo 146 JP
- 专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人地址： 30-2, Shimomaruko 3-chome Ohta-ku Tokyo 146 JP
- 代理机构： Kinne, Reinhard, Dipl.-Ing.
- 优先权： JP159494/93 19930629; JP161790/93 19930630; JP161135/93 19930630; JP191379/93 19930802; JP219787/93 19930903; JP125965/94 19940608
- 主分类号： B41J2/175
- IPC分类号： B41J2/175
摘要：
An ink jet cartridge comprises an ink jet head unit (100) for discharging the ink, and an ink tank unit (200) having an ink supply port (209) for supplying the ink to the ink jet head unit. The ink tank unit has a partition portion (215) for partitioning between an ink storing portion (204) for storing the ink to be supplied to the ink jet head unit and a negative pressure generating member receiving portion (203) having a negative pressure generating member. The ink supply port (209) is provided on the negative pressure generating member receiving portion (203). And the partition portion (215) has an ink communicating portion at an end portion of the partitioning portion on the side of the negative pressure generating member receiving portion where the ink supply port (209) is provided, and makes contiguous the ink storing portion and the negative pressure generating member receiving portion in a movement direction of the ink tank unit (200) when discharging the ink.
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