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– Turn the plotter off and on again before starting a cutting session. This clears the buffer and resets any stuck commands.
Take note of the exact COM port number assigned by Windows. You will need this number to configure your cutting software. Configuring Your Cutting Software
Another program is using the COM port, or the assigned COM port number is too high (e.g., COM12).
The Jinka 721 is a professional-grade, Chinese-manufactured cutting plotter celebrated for its precision and affordability. However, plotters like the Jinka 721 (and its sister models like the JK-721 or Goldcut) rely on older chipset architectures.
The exclusive driver defaults to 50% gain and enables "Acoustic Echo Cancellation (AEC)" which can clip audio. Fix:
If cutting directly from CorelDRAW using plugins like CutStudio or CoCut :
For model-specific drivers (JK/XL/Pro series), refer to the JINKA Indonesia Download Center , which hosts Google Drive links for various 721 variants. 2. Software Integration (CorelDraw & Artcut)