公开(公告)号：US4841120A

公开(公告)日：1989-06-20

申请号：US95269

申请日：1987-09-11

申请人： Masamori Yagino ,  Masato Taniguchi ,  Yoshitomo Ito ,  Toshimitsu Takano ,  Wataru Ishikawa ,  Sadatoshi Kikuchi ,  Tetsuo Endo

发明人： Masamori Yagino ,  Masato Taniguchi ,  Yoshitomo Ito ,  Toshimitsu Takano ,  Wataru Ishikawa ,  Sadatoshi Kikuchi ,  Tetsuo Endo

IPC分类号： B41J2/335 ,  B41J2/345

CPC分类号： B41J2/345 ,  B41J2/3357

摘要： A thermal head which is reduced in restriction in dimension of a substrate to allow reduction in size thereof and wherein the contacting characteristic of the substrate with a platen is improved to assure a high quality of printing. The thermal head has a heat generating resistor element and a driving circuit therefor both formed on a substrate, and a suppporting heat radiating member joined to one face of the substrate on which the resistor element is located. The substrate is ground at least at a portion of the opposite face thereof corresponding to a heat generating portion of the resistor element to make the thickness smaller than the other portion of the substrate. Thermal recording is effected by the ground portion of the substrate. The substrate may be made of a transparent or translucent inexpensive material such as quartz or glass. Various forms of supporting heat radiating plate to be incorporated in the thermal printers are also disclosed.

摘要翻译： 一种热敏头，其减小了基板的尺寸限制以允许其尺寸减小，并且其中基板与压板的接触特性得到改善以确保高质量的印刷。 热敏头具有形成在基板上的发热电阻元件及其驱动电路，以及连接到电阻元件所在的基板一面的支撑散热构件。 至少在其对应于电阻元件的发热部分的相对面的一部分上研磨衬底以使其厚度小于衬底的另一部分。 热记录由衬底的接地部分实现。 衬底可以由诸如石英或玻璃的透明或半透明廉价材料制成。 还公开了要并入热敏打印机中的各种形式的支撑散热板。