发明授权
- 专利标题： Ink supply device with elastic valve for liquid supplying slit
- 专利标题（中）： 供液装置带弹性阀用于供液缝
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申请号： US900013申请日： 1992-06-17
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公开(公告)号： US5365260A公开(公告)日： 1994-11-15
- 发明人: Masashi Kitani , Yoshifumi Hattori , Etsurou Suzuki , Hideo Saikawa , Masami Kojima , Kenji Kawano , Koichi Tanno , Kenji Aono
- 申请人： Masashi Kitani , Yoshifumi Hattori , Etsurou Suzuki , Hideo Saikawa , Masami Kojima , Kenji Kawano , Koichi Tanno , Kenji Aono
- 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： JPX3-147394 19910619; JPX3-147401 19910619
- 主分类号： B41J2/175
- IPC分类号： B41J2/175
摘要：
An ink jet cartridge is composed integrally of a recording head and an ink tank, which are constructed in mutually separable manner, in order to enable repeated use of the recording head by replacement of the ink tank. In an ink supply part in the ink tank, an elastic partition wall is provided with a slit which is normally closed but is opened under a predetermined pressure difference. The slit is so designed as to generate an appropriate negative pressure on the recording head, thereby preventing ink leakage. Also a slit shielding valve member is provided to shield the slit at the abrupt inhaling action of the ink tank at the detaching of the ink tank, in order to prevent air intrusion into the ink tank.