Liyu Technology (Shenzhen) may still provide drivers for legacy parts. Search for:
: Use a plug-in like PlotCalc or SignTools 4 to send designs directly to the plotter. Quick Specs for Setup Recommended Value Language Baud Rate Usually 9600 (check manual if connection fails) Max Width Velocity 10–800 mm/s
USB-to-Serial drivers—which allow your computer to recognize the machine through its USB or serial interface. SignTools 4 Critical Driver & Connection Steps