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由于打印机频繁机械动作,断针现象时常发生,使输出的文件质量受到影响.笔者在实践中发现,调节有关电位器,控制打印头线圈驱动管的导通时间,可有效减少打印机断针.以LQ-1600K为例,线圈驱动管的导通时间由555组成的单稳振荡电路控制,555外接的C和R决定脉宽时间常数T,调节R,减小T即可改变打印头线圈驱动管的导通时间,改变打印头线圈所获得的能量和针出击力量的大小.打开LQ-1600K防音盖,逆时针旋转底板中部的电
Due to the frequent mechanical action of the printer, the phenomenon of broken needles often occurs, so that the quality of the output file is affected.I found in practice, adjusting the potentiometer, control the print head coil drive tube conduction time, can effectively reduce the printer broken needle. LQ-1600K, for example, the coil-driven tube conduction time consists of 555 monostable oscillation circuit control, 555 external C and R determine the pulse width time constant T, adjust R, T can be changed to reduce the print head coil drive tube Of the turn-on time, change the print head coil obtained by the energy and the size of the needle attack strength. Open the LQ-1600K anti-sound cover, turn the bottom counterclockwise electric