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1. 发明授权

US5367321A Thermal line printer with plural thermal head substrates 失效
标题翻译：具有多个热敏头基板的热线打印机
公开(公告)号：US5367321A
公开(公告)日：1994-11-22
申请号：US766818
申请日：1991-09-26
申请人： Ota Shigenori , Kawata Akihiko
发明人： Ota Shigenori , Kawata Akihiko
IPC分类号： B41J2/345 , B41J2/335
CPC分类号： B41J2/3357 , B41J2/33575
摘要： When composing a long thermal head by joining plural insulating substrates forming linear heating resistance element rows in the arranging direction, if the distance of the heating resistance elements at the remotest position of the insulating substrates is extended, a white stripe (white out) is formed at a position corresponding to the junction of the insulating substrates at the time of printing. In the invention, in the heating resistance element rows on the mutually adjacent insulating substrates, the heating resistance elements at the remotest position on each substrate are mutually jointed in a state of being deviated by 0.2 to 1.5 mm in the subscanning direction. Therefore, the height of the composition on the adjacent insulating substrate on an extended line of the heating resistance element rows on one insulating substrate is lower than the height of the heating resistance element rows on the same one insulating substrate. Hence, faulty contact of the heating resistance element at the remotest position with the platen roller or the like is prevented, and the quality of thermal printing may be outstandingly enhanced.
摘要翻译：当通过在布置方向上连接形成线性加热电阻元件列的多个绝缘基板来组合长的热敏头时，如果绝缘基板的最远位置处的加热电阻元件的距离延长，则形成白色条纹（白色）在与印刷时的绝缘基板的接合部对应的位置。在本发明中，在相互相邻的绝缘基板上的加热电阻元件列中，各副基板上的最远位置处的加热电阻元件以副扫描方向偏离0.2〜1.5mm的状态相互接合。因此，在一个绝缘基板上的加热电阻元件列的延长线上的相邻绝缘基板上的组成的高度低于同一绝缘基板上的加热电阻元件列的高度。因此，防止加热电阻元件在最远位置与压纸辊等的故障接触，并且可以显着提高热敏打印的质量。

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