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    Ink jet recording head
    2.
    发明授权
    Ink jet recording head 失效
    喷墨记录头

    公开(公告)号：US6161924A

    公开(公告)日：2000-12-19

    申请号：US857858

    申请日：1997-05-16

    申请人： Masao Mitani ,  Kenji Yamada ,  Osamu Machida ,  Kazuo Shimizu ,  Katsunori Kawasumi

    发明人： Masao Mitani ,  Kenji Yamada ,  Osamu Machida ,  Kazuo Shimizu ,  Katsunori Kawasumi

    IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/16

    CPC分类号： B41J2/14129 ,  B41J2202/03

    摘要： In an ink jet recording head, the thin-film thermal resistor is covered by an electrically-insulating oxidation film. An inorganic insulation layer is formed over a part of the thin-film thermal resistor and the thin-film conductor. An organic insulation layer is formed over at least a part of the inorganic insulation layer that covers the connecting edge of the connection portion between the thin-film thermal resistor and the thin-film conductor.

    摘要翻译： 在喷墨记录头中，薄膜热电阻被电绝缘氧化膜覆盖。 在薄膜热电阻器和薄膜导体的一部分上形成无机绝缘层。 在覆盖薄膜热电阻和薄膜导体之间的连接部分的连接边缘的无机绝缘层的至少一部分上形成有机绝缘层。

    Ink jet print head and a method of driving ink therefrom
    5.
    发明授权
    Ink jet print head and a method of driving ink therefrom 失效
    喷墨打印头和从其中驱动墨水的方法

    公开(公告)号：US5980024A

    公开(公告)日：1999-11-09

    申请号：US740895

    申请日：1996-11-04

    申请人： Masao Mitani ,  Kenji Yamada ,  Katsunori Kawasumi ,  Osamu Machida ,  Kazuo Shimizu

    发明人： Masao Mitani ,  Kenji Yamada ,  Katsunori Kawasumi ,  Osamu Machida ,  Kazuo Shimizu

    IPC分类号： B41J2/05 ,  B41J2/14

    CPC分类号： B41J2/04563 ,  B41J2/0458 ,  B41J2/14129 ,  B41J2202/03

    摘要： In an ink ejection type recording device in which expansion of bubble ejects an ink droplet from a nozzle toward a recording medium, a heater formed in an ink channel is applied with a pulse of voltage by a driver circuit. The pulse of voltage is determined so that the surface of the heater in direct contact with the water-based ink is rapidly heated to a temperature causing to invoke caviar-wise nucleation of the ink that is in direct contact with the surface of the heater. Expanding bubbles resulting from the caviar-wise nucleation ejects an ink droplet from the nozzle, wherein the heater is heated at a heating speed in a range from 1.times.10.sup.8 .degree. C./sec to 5.times.10.sup.8 .degree.C./sec, and the surface of the heater is heated up from a room temperature to a temperature substantially equal to 320 C within a period of time ranging from 0.6 to 3 .mu.sec. By heating the heater under these conditions, the ink in contact with the heater starts boiling with a high boiling pressure, the generated bubble has a large volume, and thus the bubble can generate pressure sufficiently large to eject the ink droplet.

    摘要翻译： 在喷墨式记录装置中，气泡的膨胀将墨滴从喷嘴喷射到记录介质，形成在墨水通道中的加热器被驱动电路施加电压脉冲。 确定电压脉冲，使得与水性油墨直接接触的加热器的表面被快速加热到引起与加热器表面直接接触的油墨的鱼子酱成核的温度。 由鱼子酱成核引起的膨胀气泡从喷嘴喷射墨滴，其中加热器以1×10 8℃/秒至5×10 8℃/秒的加热速度加热，加热器的表面 在0.6〜3微秒的时间内从室温升温至基本等于320℃的温度。 通过在这些条件下加热加热器，与加热器接触的墨水以高沸点开始沸腾，产生的气泡体积大，因此气泡可产生足够大的压力以喷射墨滴。