油墨液滴体积大小是影响喷墨成像质量的直接因素，对喷墨印刷中液体喷射情况进行了分析与研究。以一套压电式喷液设备，进行了乙二醇液体的液滴喷射实验，观察并探讨了操作频率、脉冲时间、脉冲电压、脉冲形态等实验参数对液滴喷射过程的影响。实验表明：改变不同的参数会影响到液滴的形成机制，分别对每个参数进行观测，以求找到液滴喷射的最佳条件。

Size and stability of droplet directly influence the quality of ink-jet imaging, so analysis and research on droplet ejection of ink-jet printing is very necessary. Ethylene glycol droplet ejection experiment was carried out using a set of piezoelectric ink-jet printing device. The influence of operating frequency, pulse time, pulse voltage, pulse shape and other experimental parameters on droplet ejection effect was studied. The experiments showed that changing different parameters will affect the droplet formation mechanism. Each of parameters was observed separately, in order to find the best conditions for droplet ejection.