发明授权
- 专利标题: Ink droplet expelling apparatus
- 专利标题(中): 墨滴排出装置
-
申请号: US793241申请日: 1985-10-31
-
公开(公告)号: US4672398A公开(公告)日: 1987-06-09
- 发明人: Tadashi Kuwabara , Yasumasa Matsuda , Masatoshi Kasahara , Kyoji Mukumoto , Kazuyoshi Tokunaga
- 申请人: Tadashi Kuwabara , Yasumasa Matsuda , Masatoshi Kasahara , Kyoji Mukumoto , Kazuyoshi Tokunaga
- 申请人地址: JPX Tokyo JPX Tokyo
- 专利权人: Hitachi Ltd.,Hitachi Koki Co., Ltd.
- 当前专利权人: Hitachi Ltd.,Hitachi Koki Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Tokyo
- 优先权: JPX59-227767 19841031
- 主分类号: B41J2/045
- IPC分类号: B41J2/045 ; B41J2/055 ; B41J2/105 ; B41J2/14 ; G01D15/16
摘要:
Disclosed is an ink droplet expelling apparatus for expelling an ink droplet in response to an electric signal, compising a printing head provided with one or more ink chambers, electro-mechanical transducers disposed on the printing head corresponding to the ink chambers, and a driving signal generating circuit for producing electric signals for driving the electro-mechanical transducers. The elector-mechanical transducers are distorted by three different driving signals to reduce the volumes of the ink chambers to raise the pressure therein to thereby expel an ink droplet out of a nozzle formed at the front end of the head. The three driving signals are applied to the electro-mechanical transducers in a predetermined order, the first one giving the ink a velocity, the second one accelerating the ink to expel it in the form of an ink droplet out of the nozzle, the third one acting to suppress the pressure fluctuation in the ink chambers caused by the first and second driving signals as well as to supplement ink in the ink chambers from an ink tank.
公开/授权文献
- US5718751A Adhesive agent for adhering an object to its base 公开/授权日:1998-02-17