Some older or premium versions of the 721 series use FTDI chips. Use these if the CH340 does not work. Step 3: Installation Process Follow these steps to install the driver manually:
Set the Connection Type to (even though it is a physical USB cable, the driver translates it to a serial signal).
If the specific Jinka driver fails, the machine often uses the CH340/CH341 chip. You can download the latest version directly from the chip manufacturer, WCH (Nanjing Qinheng Microelectronics) , which supports Windows 11/10/8/7. 2. Step-by-Step Installation Guide -VERIFIED- Download Usb Driver Jinka 721
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If automatic updating doesn't work, you can search for the official website of the device manufacturer or use a reliable driver update tool. Always ensure that you're downloading from a site that you trust. Some older or premium versions of the 721
Download the driver file (often a .ZIP or .EXE). If it is a ZIP file, extract it to a dedicated folder on your desktop.
Connect the USB cable from the plotter to a USB 2.0 port on your computer (avoid USB 3.0 blue ports if you encounter stability issues). If the specific Jinka driver fails, the machine
If the driver appears installed but the plotter does not respond:
To verify that the USB driver has been successfully installed: