发明授权
- 专利标题： Ink jet printing head, ink jet head cartridge and printing apparatus
- 专利标题（中）： 喷墨打印头，喷墨头盒和打印装置
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申请号： US08741039申请日： 1996-10-30
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公开(公告)号： US06412920B1公开(公告)日： 2002-07-02
- 发明人: Haruyuki Matsumoto , Hajime Yamamoto , Mineo Kaneko , Tsuguhiro Fukuda , Masashi Miyagawa
- 申请人： Haruyuki Matsumoto , Hajime Yamamoto , Mineo Kaneko , Tsuguhiro Fukuda , Masashi Miyagawa
- 优先权： JP5-038394 19930226
- 主分类号： B41J205
- IPC分类号： B41J205
摘要：
An ink jet printing head for effecting printing by ejection of ink includes a first electrothermal transducer having a heat generating resistor with a first area and wiring electrically connected with the heat generating resistor; a second electrothermal transducer having a second heat generating resistor with an area which is different from the area of the first heat generating resistor; wherein bubbles are produced in ink materials upon application of electric signals to the electrothermal transducers, by which different volumes of ink materials are ejected; wherein the first and second electrothermal transducers have substantially the same bubble production threshold voltage.
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