为使打印机工作于电池供电的便携模式，设计了高效率电源管理电路。
To make the printer work in portable model with battery-powered, a high-efficiency power management circuits is designed.
通过对打印机工作机理的分析，确定了打印机出针频率与打印头运行速度之间的关系。
The relation equation between the stylus beating frequency and the motion speed of printer head is derived from the analysis of the mechanism of stylus printer and validated by experience.
这种打印机工作方式是选择性地加热热敏纸区域，热敏纸含有化学成分，当它接触到热的打印头时会改变颜色。
These printers work by selectively heating regions of heat-sensitive paper that is infused with a chemical that changes color when it comes in contact with the heated print head.
本文介绍了一种在DOS环境下打印spt格式文件的方法，写出了该方法的打印驱动程序，并对打印机工作顺序作了介绍。
This paper introduces a method of printing SPT-format file under DOS environment, gives a printing drive program and introduces the printer's work-sequence.
分别在驾驶室和集控室操纵车钟，观察各控制位置车钟指示和报警情况。检查车钟错向报警功能。检查驾驶室车钟打印机工作情况。
Operate telegraph in W/H and ECR respectively, observe telegraph indication and alarm of each location. Check wrong way alarm. Check telegraph printer in W/H.
分别在驾驶室和集控室操纵车钟，观察各控制位置车钟指示和报警情况。检查车钟错向报警功能。检查驾驶室车钟打印机工作情况。
Operate telegraph in W/H and ECR respectively, observe telegraph indication and alarm of each location. Check wrong way alarm. Check telegraph printer in W/H.
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