针式打印机打印头常见故障分析

The Repair Technique of Dot Matrix Printer Head

针式打印机的打印头故障率较高,详细分析打印头工作原理及故障产生的原因,对打印头的正确使用与维护有着积极的作用。利用BASIC语言编写的测试程序可方便地测出打印头断针的针号或故障线圈的位置,为更换打印针或线圈提供了准确的依据。

Dot matrix printer head has high rate of break down. In order to use and maintain the printer head correctly, it is necessary to analyze the principle of printer head and reasons of break down. By using a testing program written in BASIC, we can test the position of the broken needle or defect coil. It provides the evidence for replacing needle or coil. This is practical and makes the repair work easy and accurate.