Right-click the Windows Start menu and select . Expand the Ports (COM & LPT) subheading. Look for CH340/CH341 Serial Port or USB Serial Port .
Many Jinka 721 users also work with or FlexiSign . Both programs have pre‑defined profiles for cutting plotters that use the HPGL command language (which Jinka supports). In the device settings of those applications, select a generic HPGL plotter and set the communication parameters (9600 baud, 8 data bits, no parity, 1 stop bit). Adjust the cutting force and speed on the machine’s front panel or within the software. download driver jinka 721 for windows 10 work
“Jinka 721” is from major manufacturers like Realtek, Intel, NVIDIA, or Broadcom. It is likely: Right-click the Windows Start menu and select