目前，利用打印机犯罪的案件逐渐增多。但是用一般的方法很难分析鉴别不同打印机的差异。因此非常需要建立系统鉴定法，以快速、准确地进行打印机种属认定和更深层次的鉴别。我们研究了高效薄层色谱法、导数光谱法等六种仪器分析以及文检痕检鉴别法，综合建立了系统鉴定法。本 At present, the use of printer crime cases are gradually increasing. However, it is difficult to analyze and distinguish the differences between different printers by the ordinary methods. Therefore, it is very necessary to establish a system of identification method to quickly and accurately identify the printer and a deeper level of identification. We studied six instruments such as high performance thin layer chromatography and derivative spectroscopy, as well as the method of textual sew inspection and identification, and established the system identification method synthetically. this