我实验室于1979年从国外引进了一台Perkin-Elmer公司生产的SIGMA Ⅰ型气相色谱仪,它带有一台SIGMA10数据处理器。自安装以来工作一直正常。可是到了1982年6月的一天,突然发现正在工作的仪器,打印机打印出来的数据字迹模糊不清了(见图1)。经仪器维修部门详细检查,确定为打印机的热打印头坏了。按理说,这十分简单,只要换上一个新的打印 My laboratory in 1979 introduced from abroad a Perkin-Elmer company’s SIGMA type Ⅰ gas chromatograph, which has a SIGMA10 data processor. Work has been normal since installation. However, one day in June 1982, suddenly found that the work of the instrument, the printer print out the data illegible (see Figure 1). The instrument maintenance department to conduct a detailed inspection to determine the printer’s thermal print head is broken. Logically speaking, this is very simple, just put on a new print