You should never see this.
Right-click My Computer > Properties > Device Manager . Look under "Ports (COM & LPT)" to confirm the device appears without a yellow exclamation mark. 3. Connection Tips for Success CH341SER.EXE - Nanjing Qinheng Microelectronics Co., Ltd.
While Jinka is distributed by various vendors, the core driver you need is the universal CH341SER. This driver creates a "Virtual COM Port" (VCP) that allows your cutting software (like SignMaster or Artcut) to "see" the plotter. Primary Source: Download the CH341SER.EXE directly from the chipset manufacturer, Alternative: You can also find the Jinka 721 Windows 10 Driver hosted on Google Drive via various user communities. 2. Installation Steps for Windows 10/11 Disconnect the Plotter: -VERIFIED- Download Usb Driver Jinka 721
: Ensure your cutting software (like AnyCut or PlotCalc ) is set to the same COM port number found in your Device Manager. Right-click My Computer > Properties > Device Manager