星形轮压痕作为喷墨打印机个体识别依据的实验研究  

An Experimental Study of Star Wheel Mark as a Signature for Inkjet Printers Identification

作　　者：刘宁[1] 

机构地区：[1]江苏警官学院公安科技系,江苏南京211800

出　　处：《中国司法鉴定》2015年第4期52-57,共6页Chinese Journal of Forensic Sciences

基　　金：江苏省高等院校公安技术重点学科建设项目专项资金(20110838);江苏警察学院科研项目(13y03)

摘　　要：目的为喷墨打印机的个体识别提供一种有效特征。方法通过实验考察了46种喷墨打印机,运用薄型碳式复写纸采集喷墨打印机输纸机构中星形轮形成的机械压痕。分析复写纸上星形轮印迹所反映的机器个体特定性,并将这种复写印迹与正常打印件上显现出的成行点状压痕进行比较分析,考察星形轮压痕在普通纸、喷墨纸和照片纸不同打印介质上的反映。结果发现喷墨打印机星形轮压痕具有个体特殊性,对这种特征的利用需考虑墨迹密度、打印介质和显现方法的影响。结论有效显现和综合利用独特星形轮压痕特征可以使喷墨打印机的个体识别成为可能。Objective To provide an operative feature for the identification of inkjet printers. Method Forty-six models of inkier printers were investigated experimentally. On the thin carbon copy paper, the samples of the mechanical impression produced by the star wheels of the tested inkjet printers were collected. On three kinds of substrate, the normal outputs of these inkjet devices were obtained as well. The comparison between the star wheel marks on the carbon-copy samples and the developed images of the dot impressions on the substrates, i.e. plain paper, ink jet paper and photo paper, were conducted. Results It was found that the star wheel marks showed the distinctive features of the inkjet printers. However, the utilization of this feature is affected by the ink dot density, substrate, and the developing method. Conclusion A set of unique star wheel marks, which are effectively visualized, could make it possible to identify an inkjet printer.

关 键 词：文件检验 喷墨打印机 星形轮压痕特征 个体识别 

分 类 号：DF794.1[政治法律—诉讼法学]