八开文字传真机是收发合一的滚筒扫描式传真机,通过单路有线载波话路和音频实线话路传输文件、图表等黑白两种讯号,实现远距离传真通讯。本机记录使用元珠芯和八开普通白纸,具有120转/分和90转/分 Eight open text fax machine is sending and receiving one of the drum-scanning fax machines, through a single line of wired carrier audio and real-time voice transmission of documents, charts and other black and white signals to achieve long-distance fax communications. The machine records using the bead core and eight open ordinary white paper, with 120 rev / min and 90 rev / min