Select the matching virtual COM port from the drop-down menu.
Open the on Windows (press Win + X and select Device Manager). Expand the Ports (COM & LPT) section.
9600 (or 38400, depending on your specific model manual) Flow Control: Hardware / RTS-CTS Option B: Setting Up Artcut Open Artcut and go to the Cut/Plot window.
The JK 721 is a highly popular, budget-friendly vinyl cutting plotter used widely by sign makers, apparel designers, and DIY hobbyists. While the hardware itself is robust and reliable, getting the machine to communicate with your computer requires the correct driver installation.