LQ—1600K打印机在电费票据打印时，经常出现断针故障，本人经过多次实践，圆满地解决了换针的问题，节约了打印头的开支，及时地保证了打印的需要。其方法如下：（1）判断长针断还是短针断（LQ—1600K打印头长针在上，短针在下）。（2）沿散热座四边依次上撬，直到打印头与散 LQ-1600K printer in the electricity bill printing, often broken needle failure, after many practice, I successfully solved the problem of changing the needle, saving the overhead of the print head, in a timely manner to ensure the printing needs. The method is as follows: (1) to determine whether the long needle or short needle off (LQ-1600K print head long needle in the short needle in the next). (2) Pry along the four sides of the heat sink in sequence until the print head and scattered