Discrimination of inkjet printers by measurement of spur marks using a measuring microscope

Masanao Shionaga, Mototsugu Suzuki, Hitomi Kudo
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Abstract

 STAGE DOI: 10.3408 / jafst.747 ) We propose the analysis method of spur mark distance for discrimination of inkjet printers using a measuring microscope. The conventional method is the measurement of the pitch and the mutual distance of the spur marks which depend on the model of inkjet printers. Therefore, it is di‹cult to discriminate the same models of inkjet printers by the conventional method. First, we established the analysis method to obtain the spur mark distance indented by one rotation of spur gear and examined the diŠerence of the distances in a printer using correlation coe‹cients. Next, we applied this method to discriminate 60 inkjet printers of the same model. As a result, the correlation coe‹cients between the same printers approximated to 1. On the other hand, the correlation coe‹cients between the diŠerent printers were widely distributed in the range from  1 to 1. These results indicate that our proposed method can distinguish printers of the same model and be a useful tool for discrimination
用测量显微镜测量喷墨打印机刺痕的鉴别
阶段DOI: 10.3408 / jafst。(747)提出了用测量显微镜对喷墨打印机的刺痕距离进行判别的分析方法。传统的方法是根据喷墨打印机的型号来测量刺痕的间距和相互距离。因此,用传统的方法来区分相同型号的喷墨打印机是很困难的。首先,建立了获取正齿轮一次旋转压痕距离的分析方法,并利用相关系数对打印机中压痕距离的diŠerence进行了检验。接下来,我们应用该方法对60台相同型号的喷墨打印机进行了判别。结果,相同打印机之间的关联度接近于1。另一方面,diŠerent打印机之间的相关系数分布在1 ~ 1范围内。结果表明,该方法可以有效地区分同一型号的打印机,是一种有效的识别工具
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