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32. 发明公开

EP0444579A2 Ink jet recording apparatus 失效
标题翻译： Tintenstrahlaufzeichnungsgerät。
公开(公告)号：EP0444579A2
公开(公告)日：1991-09-04
申请号：EP91102766.2
申请日：1991-02-25
申请人： CANON KABUSHIKI KAISHA
发明人： Ikeda, Kazue, c/o Canon Kabushiki Kaisha , Ujita, Toshihiko, c/o Canon Kabushiki Kaisha , Watanabe, Kenjiro, c/o Canon Kabushiki Kaisha
IPC分类号： B41J2/165
CPC分类号： B41J2/16579
摘要： An ink jet recording apparatus records information by ejecting ink droplets onto a recording medium (63). The ink jet recording apparatus has a recording head (101H); driving circuits (51), measuring circuit (53), and a judging unit (50). The recording head (101H) has ejection outlets (5) and ink liquid passages (4) connecting to the ejection outlets (5) respectively, an electro-thermal converting element (7) being disposed in each of the ink liquid passages (4), for generating thermal energy for ejecting the ink droplets. The driving circuits (51) drive the electro-thermal converting element (7) to generate the thermal energy enough to eject the ink droplet. The measuring circuit (53) individually measures a resistance value of the electro-thermal converting element (7) when the driving circuits (51) drive the electro-thermal converting element (7). The judging unit (50) judges presence of an abnormal state in the ink liquid passage (4) according to the resistance value.
摘要翻译：喷墨记录装置通过将墨滴喷射到记录介质（63）上来记录信息。喷墨记录装置具有记录头（101H）; 驱动电路（51），测量电路（53）和判断单元（50）。记录头（101H）分别具有连接到喷射出口（5）的喷射出口（5）和油墨液体通道（4），设置在每个墨液通道（4）中的电热转换元件（7），用于产生用于喷射墨滴的热能。驱动电路（51）驱动电热转换元件（7）以产生足以喷射墨滴的热能。当驱动电路（51）驱动电热转换元件（7）时，测量电路（53）分别测量电热转换元件（7）的电阻值。判断单元（50）根据电阻值判断墨水通道（4）中的异常状态的存在。

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