电子文件被修改或盗用的犯罪量逐年增长。往远处说,在美国此犯罪量的年增长量已达六倍多;从近处说,随着国内企业或行业的竞争加剧,盗取客户资料的情况日益严重,特别是像一些经常为客户提供帐单的行业。据介绍,在这一领域,数据在打印过程中,一边通过特定软件解密、一边通过高速生产型打印机打印、一 The amount of crime in which electronic documents are altered or misappropriated has been increasing year by year. Speaking to distant places, the amount of criminality has increased more than sixfold in the United States in the recent past. From a close point, as the competition in domestic enterprises or industries intensifies, the situation of stealing customer data is getting worse. In particular, Customer billing industry. According to reports, in this area, data in the printing process, while specific software through the decryption, while printing through high-speed production-based printers, a