| 常用彩色激光打印机打印文件暗记特征的初步研究 |
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| 引用本文： | 王楠,杨旭,杜志淳. 常用彩色激光打印机打印文件暗记特征的初步研究[J]. 中国司法鉴定, 2014, 0(2): 19-24 |
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| 作者姓名： | 王楠 杨旭 杜志淳 |
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| 作者单位： | 1. 司法部司法鉴定科学技术研究所,上海,200063
2. 华东政法大学,上海,200042 |
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| 基金项目： | 国家十二五科技支撑项目，上海市科技攻关课题，中央级科研院所公益研究基金 |
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| 摘 要： | 目的收集当前我国常用不同品牌和型号的彩色激光打印机打印样本,研究打印文件上暗记特征的提取分析及其变化规律,探讨彩色激光打印文件暗记特征在鉴定实践中的应用及其在打印文件防伪措施中的价值。方法使用显微镜、文检仪及有关图像处理技术分别检验了彩色激光打印机的打印文件样本。结果彩色激光打印机打印文件上会出现暗记特征,且不同品牌的暗记特征出现规律、形态特征和点阵特征不同。结论暗记特征可作为初步鉴别彩色激光打印机品牌型号及打印时间的依据,具有防伪价值,但其在鉴定实践中还存在一定的局限性,有待进一步研究。
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| 关 键 词： | 彩色激光打印机 打印文件 暗记特征 文检仪 |
Research on the Tracking Codes of Common Color Laser Printers on Printed Documents |
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| WANG Nan,YANG Xu,DU Zhi-chun. Research on the Tracking Codes of Common Color Laser Printers on Printed Documents[J]. Chinese Journal of Forensic Sciences, 2014, 0(2): 19-24 |
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| Authors: | WANG Nan YANG Xu DU Zhi-chun |
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| Affiliation: | WANG Nan, YANG Xu, DU Zhi-chun (1. Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China; 2. East China University of Political Science and Law, Shanghai 200042, China) |
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| Abstract: | Objective To study the tracking codes of the common color laser printers on printed documents anti their application in the questioned document examination and file security. Method Printed samples were examined under the microscope and video spectral comparator. Results Color laser printed documents may appear tracking codes. The tracking codes are different in regularity, pattern, and lattice features among diverse brands of printers. Conclusion The tracking codes can be used for the primary identification of different brands of color laser printer. But there also exist limitations in the forensic practice and further study is necessary. |
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| Keywords: | color laser printer printed document tracking code video spectral comparator |
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