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    • 1. 发明授权
    • Thermal head
    • 热头
    • US5223856A
    • 1993-06-29
    • US740291
    • 1991-08-05
    • Akihiro KawataRyoichi ShiraishiShigenori Ota
    • Akihiro KawataRyoichi ShiraishiShigenori Ota
    • B41J2/335B41J2/345
    • B41J2/3355B41J2/3357B41J2/33575B41J2/345
    • When the support member and cooling member of the thermal head are made of aluminum, and the head substrate is made of ceramic, the difference in the coefficient of thermal expansion of the two is very large, and the aluminum is expanded in use, and the gap to the adjacent head substrate is increased to cause white stripes. In the invention, the materials are properly selected so that the coefficient of thermal expansion of the support member and cooling member and the coefficient of thermal expansion of the head substrate may be close to each other, and the head substrate is adhered to the cooling plate with a soft adhesive. Therefore, if a difference is caused in the amount of expansion between the head substrate and the cooling plate during use, it is suppressed to such an extent as to be absorbed by the elastic deformation of the soft adhesive.
    • 当热头的支撑构件和冷却构件由铝制成,并且头基板由陶瓷制成时,两者的热膨胀系数的差异非常大,并且铝在使用中膨胀,并且 与相邻的头基板的间隙增加以产生白色条纹。 在本发明中,适当地选择材料,使得支撑构件和冷却构件的热膨胀系数和头基板的热膨胀系数可以彼此接近,并且头基板粘附到冷却板 用柔软的粘合剂。 因此,如果在使用中头部基板和冷却板之间的膨胀量产生差异,则被抑制到被软粘合剂的弹性变形吸收的程度。
    • 7. 发明授权
    • Thermal head
    • 热头
    • US4743923A
    • 1988-05-10
    • US941644
    • 1986-12-15
    • Yasuo NishiguchiTsuyoshi YasutomiRyoichi ShiraishiAkira SasakiYoshihito TakahashiKatsumasa MikamiMasafumi SuzakiAkiyoshi Hakoyama
    • Yasuo NishiguchiTsuyoshi YasutomiRyoichi ShiraishiAkira SasakiYoshihito TakahashiKatsumasa MikamiMasafumi SuzakiAkiyoshi Hakoyama
    • H01L49/02G01D15/10
    • H01L49/02
    • A thin film type thermal head includes a head substrate member, a partial projected glaze portion mounted on the head substrate member, a plurality of heating resistor elements provided on the partial projected glaze portion with each of the heating resistor elements having a uniform thin thickness and two electrode end portions. A common electrode is provided on the partial projected glaze portion and an individual control electrode is also provided on the partial projected glaze portion. The partial projected glaze portion has at least two projected portions of different height with the plurality of heating resistor elements having a portion thereof disposed on at least the highest projected portion of the partial projected glaze portion with both electrode end portions of each of the heating resistor elements being disposed on the partial projected glaze portion other than the highest projected portion of the partial projected glaze portion so as to enable a recording dot to become narrow in the printing direction.
    • 薄膜型热敏头包括头基板部件,安装在头基板部件上的部分投影釉部分,设置在部分投影釉部分上的多个加热电阻元件,每个加热电阻元件具有均匀的薄厚度, 两个电极端部。 公共电极设置在部分投射的釉面部分上,并且单独的控制电极也设置在部分投影的釉料部分上。 部分投影釉料部分具有至少两个不同高度的突出部分,多个加热电阻元件的一部分设置在部分投射釉料部分的至少最高突出部分上,其中每个发热电阻器的两个电极端部分 元件被布置在除了部分投影釉部分的最高突出部分之外的部分投影釉面部分上,以使记录点在打印方向上变窄。