喷墨打印机是计算机的外部设备,用于实现文件的硬拷贝,即将计算机对信息的处理结果打印在纸张上。近年来由于喷墨打印技术在社会上被广泛应用,据预测,未来喷墨打印机市场的份额将占60％。因此刑事文检人员将会越来越多地接触喷墨打印机打印的各类文件,需要判断其是何种类、机型、机台的打印机形成的,从而确定文件的来源和真伪,为侦查缩小范围,为法庭提供证据。 An inkjet printer is an external device of a computer that implements a hard copy of a document on which the result of the computer’s processing of the information is printed. In recent years due to inkjet printing technology is widely used in society, it is predicted that the future inkjet printer market share will account for 60%. Therefore, criminal prosecutors will be more and more in touch with all kinds of documents printed by inkjet printers, need to determine what type, model, machine printer formed in order to determine the source of the document and the authenticity of the investigation Narrow the field to provide evidence for the court.