Look for an "Unknown Device" or "USB Printing Support" under the or Ports (COM & LPT) section.
Before connecting the hardware, you must have the driver files ready on your computer. Jk 721 Cutting Plotter Driver Windows 10
: Use COM3 as the default port; if your port number is 10 or higher, manually change it to a number under 10 in Device Manager. Look for an "Unknown Device" or "USB Printing
Use the original utility disk or download the Jinka JK 721 driver from official sources like USCutter . Run Setup: Execute the setup.exe or CH341SER.exe file. Jk 721 Cutting Plotter Driver Windows 10
. Look for a "USB-Serial" device under "Ports (COM & LPT)" or "Other Devices." Install Driver