Static electricity buildup or Windows USB Power Management shutting down the port.
By following the steps outlined in this guide, you can avoid common pitfalls and turn your Jinka 721 into a reliable workhorse for your sign‑making business.
If you prefer working directly from CorelDRAW, you can use specialized plugins:
Complete Guide to Downloading and Installing Jinka 721 Drivers for Windows 10 Setting up a Jinka JK721
Set the connection type explicitly to rather than USB, and input the COM number verified from your Device Manager. CH341SER.EXE - Nanjing Qinheng Microelectronics Co., Ltd.
Note the number inside the parentheses next to it (e.g., or COM4 ).
Click and browse to the extracted Jinka driver folder (e.g., "Gold Cut JK série").
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