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本文在对IBM/PC系列打印机接口的时序关系和接口电路进行分析的基础上,提出了方便有效的查障方法,并在实际应用中收到了显著的效果。
Based on the analysis of the timing relationship and interface circuit of IBM / PC series printer interface, this paper presents a convenient and effective method of fault detection, and has received significant results in practical application.