目的:研究不同激光打印机打印文字的区别,探究相应打印机所具有的特性。方法:利用电镜对文字的光学部分进行拍照与分析,通过autocad软件对图片进行比例分析并归纳出相应的差别与特点。结果:比例部分差别较大,可作为辨别的依据。结论:通过电镜可以识别相应打印机,归纳出相应的特点,在文检工作中起到重要作用。 Objective: To study the differences between different laser printers in printing texts and explore the features of the corresponding printers. Methods: The optical part of the text was photographed and analyzed by electron microscope. The images were analyzed by autocad software and the corresponding differences and characteristics were summarized. Results: The proportion of large differences, can be used as a basis for identification. Conclusion: The corresponding printer can be identified by electron microscopy, and the corresponding features are summarized, which play an important role in the literary work.