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介绍了微型点阵打印机的打印原理，根据工作中的点滴经验，针对微型点阵打印机的一些颇具共性的故障现象及其产生原因加以分析，提供处理方法。
The printing principle of the micro dot matrix printer is introduced. According to the drip experience in the job, some common faults of the micro dot matrix printer are analyzed and the causes are analyzed to provide the processing method.