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本文对走纸电路的工作原理做了详细分析说明了该电路的工作过程及主要部件的功能，最后例举了五个实际故障的分析处理方法。
This paper makes a detailed analysis of the working principle of the paper feeding circuit and explains the working process of the circuit and the functions of the main components. Finally, the analysis and treatment methods of five actual faults are illustrated.