Abstract: The stylus printer is a kind of common office equipment and cases involving identification of stylus printing documents are encounted frequently.Based on analysis of the structure of stylus printers and printing principles,features of stylus printing documents for classification and identification of printers are discussed.

Key words: stylus printing, printing head, carriage unit, transmission gear

摘要： 针式打印机是一种常用的办公机具,从针式打印机的结构和打印原理出发,阐述了针式打印文件种类鉴别和个体识别所依据的打印特征,为针式打印文件的检验鉴定进行操作层面的探讨。

关键词: 针式打印, 打印头, 字车, 传动机构