Open Device Manager again. Ensure the COM port number matches the port selected inside your software's cut settings perfectly. Double-check that the Baud rate is locked at 9600. Best Practices for a Stable Connection
Windows assigns COM port numbers dynamically. If you plug your Jinka JK 721 into a different USB port tomorrow, Windows may change it from COM3 to COM5, breaking your software setup. Dedicate one specific USB port to your cutter.
Jinka Cut offers several key features:
: The driver software can automatically check for and install firmware updates, ensuring that the plotter always operates with the latest features and performance enhancements.
Right-click the downloaded executable file (usually named CH341SER.EXE ) and select . Click the Install button in the setup window.
The Jinka JK-721 cutting plotter driver comes with a range of features designed to enhance your cutting experience:
Who it’s best for
Open the software, go to the cutter settings, and select the port noted in the Device Manager.
This is the most common point of confusion. Since the manufacturer's official support website can be difficult to locate, here are the most reliable ways to get your machine set up:
(or its sibling, the Goldcut JK 721). For an entry-level plotter, it is a beast: boasting 720mm of feed width, a digital display, and the promise of cutting everything from standard adhesive sign vinyl to heat transfer sheets for custom t-shirts.
Which you are using (Windows 10, Windows 11, Mac)?
To ensure the driver is working, you must check which port your computer assigned to the cutter:
Follow these steps precisely to avoid the common pitfalls associated with USB-to-serial device configurations. Step 1: Disconnect the Plotter
You will need this number when setting up your cutting software. 5. Configuring Your Cutting Software