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首页> 外文期刊>Journal of Imaging Science and Technology >Development of Dual-Line Wide-Format 1200 dpi Thermal Printhead
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Development of Dual-Line Wide-Format 1200 dpi Thermal Printhead

机译：开发双线宽幅1200 dpi热敏打印头

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The wide-format dual-line 1200 dpi thick film thermal head was developed utilizing the following technologies: (a) an alternated conductive lead circuitry inside the thermal head is devised in that it does not use diodes for the prevention of reverse current; instead, it adds a secondary power supply to redirect the reverse current, (b) The heater nib line of the printhead is produced stably and accurately using the direct dispensing system which, based on the air microtechnology feeds back the air pressure and controls the linear actuator to follow the surface of a substrate, (c) The 1200 dpi printhead is combined of two identical 600 dpi nib lines with half-pitch offset in the nib line direction and separated by a distance of 32 nib lines in the printing direction. Although the printhead is not made of a 1200 dpi single nib line and may be classified as a quasi-1200 dpi printhead in a more strict sense; however, it does exhibit a 1200 dpi-like performance and, for the convenience of presentation, it is still called a 1200 dpi printhead in this article. Several wide-format (up to 54 in. width) products based on the 1200 dpi thermal printhead have been designed and are capable of printing half-tone images of up to 133 lines per inch.
机译：宽幅双线1200 dpi厚膜热敏头是利用以下技术开发的：（a）热敏头内部的备用导电引线电路设计为不使用二极管来防止反向电流；取而代之的是，它增加了一个辅助电源以重定向反向电流。（b）使用直接分配系统稳定，准确地生产打印头的加热器笔尖线，该系统基于空气微技术反馈气压并控制线性（c）1200 dpi打印头由两条相同的600 dpi笔尖线组合而成，在笔尖线方向上有半间距偏移，并在打印方向上隔开了32个笔尖线的距离。尽管打印头不是由1200 dpi的单个笔尖线制成的，但从更严格的意义上讲，它可以被分类为准1200 dpi的打印头；但是，它确实表现出类似1200 dpi的性能，并且为了便于演示，在本文中仍将其称为1200 dpi打印头。已经设计了几种基于1200 dpi热敏打印头的大幅面产品（最大宽度为54英寸），能够打印每英寸高达133行的半色调图像。

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