Assuming you want a Windows 10 driver for the Jinka 721 device (printer/scanner/other), here’s a concise plan to get it working:
Right-click the Start button > Device Manager . Look under "Ports (COM & LPT)" for USB-SERIAL CH340 . download driver jinka 721 for windows 10 work
driver and configuring the correct COM/USB port within the software settings. Assuming you want a Windows 10 driver for
as your model and (or the corresponding COM port) as your port. Verify in Device Manager : Right-click the Start menu and select Device Manager . Download the SDIO Lite pack (without advertisements)