Open Device Manager, right-click your COM port, go to Properties -> Power Management , and uncheck "Allow the computer to turn off this device to save power." Maintenance and Best Practices
If the plotter starts cutting but moves erratically, it is often a Baud Rate mismatch. Ensure the flow control is set to "Hardware" or "Xon/Xoff" within the driver's advanced properties. goldcut jk series driver
