LQ-1600K打印机是应用较普遍的针式打印机,现大多已进入故障高发期,笔者在检修工作中发现该机的很多故障均由几种机械故障引起,较为集中。本文将这些常见机械故障及检修方法,介绍如下,以供参考。一、断针故障现象:打印头内断针是该机最常见故障,且其复发率很高。在排除了针驱动管和针线圈等电路有故障的情况下,多因使用不当和保养不及时造成。如:换针方法不正确、不彻底,留下隐患;色带破损或起毛,质量低劣;打印蜡纸造成打印头内污垢堆积,打印针进出阻力增大;长期打印表格,某根针使用频率太高,疲劳 LQ-1600K printer is the more common type of dot matrix printer, most of which have entered the high incidence of failure, the author found in the repair work a lot of failures caused by several mechanical failures, more concentrated. This article will these common mechanical failure and maintenance methods, introduced below, for reference. First, broken needle failure phenomenon: the first print needle broken machine is the most common failure, and its high recurrence rate. In the exclusion of the needle drive tube and needle coil circuit failure, due to improper use and maintenance is not caused in time. Such as: needle change method is not correct, not complete, leaving hidden dangers; Ribbon damage or fluff, poor quality; print stencil caused by accumulation of dirt inside the print head, print needle resistance increases; long-term print form, a needle frequency too High, tired