一、传真机收报系统的故障分析与检修传真机的通信由收报和发报两部分组成,对通信故障的分析和判断也应分成发报和收报两部分进行。传真机的通信过程包括A、B、C、D、E五个阶段。A阶段为呼叫过程,B阶段为报文前过程,C阶段为报文中 First, the fax receiving system failure analysis and maintenance of fax communications by the newspaper and the sending of two parts, the analysis and judgment of communication failures should be divided into two parts, the sender and the receiver. Fax communication process includes A, B, C, D, E five stages. The A phase is the call process, the B phase is the pre-message process, and the C-phase is the message