传真,是指将文字、图表、相片等记录在纸面上的静止图像,通过扫描和光电变换,变成电信号,经各类信道传送到目的地,在接收端通过一系列逆变换过程,获得与发送原稿相似记录副本的通信方式。 Fax, refers to the text, graphics, photos and other recorded on the paper still images, through scanning and photoelectric conversion, into electrical signals, through various channels to the destination, the receiver through a series of inverse transform process, Obtain a communication method that is similar to sending a copy of the original record.