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LQ-1600K打印机问世不久,但在广大用户中普及很快,打印头断针故障成为困扰广大用户的一个问题。根据打印头控制电路原理,打印驱动脉宽控制电路分析,提供下列解决办法(打印驱动脉宽控制电路分析如图1)取下LQ-1600K的上壳,拆下拖纸器,就可以用启子调VR_1的大小。逆时针旋转VR_1,减小VR_1的阻值,可以边打边调节。实践证明,将VR_1阻值从10KΩ调到6.5KΩ左右时,既不会影响打印质量,打印针受的冲
LQ-1600K printer came out soon, but widespread popularity of the majority of users, the print head broken needle fault has become a problem plagued the majority of users. According to the print head control circuit principle, the print drive pulse width control circuit analysis provides the following solutions (print drive pulse width control circuit analysis shown in Figure 1) Remove the LQ-1600K upper case, remove the tractor, you can use Kai Sub-tune the size of VR_1. Turn VR_1 counterclockwise to decrease the resistance of VR_1. Practice has proved that the VR_1 resistance from 10KΩ transferred to 6.5KΩ or so, it will not affect the print quality, print pin by the red