仪器自带微型针式打印机程序。通过串行口与主单片机通信，字库直接烧录在FLASH里，适合字库小的专业仪器使用。所控制打印头为EPSON 150-nstrument comes with mini dot matrix printer program. Through the serial port to communicate with the main microcontroller, font directly burn in FLASH, the appropriate font small professional instrument. Under the control of the print head for EPSON 150II