To get your Jinka 721 working on Windows 10, you need to handle two components: the USB-to-Serial communication driver and the Cutting Plotter driver itself. 📋 Prerequisites Disconnect the plotter from your PC before starting.

Scenario A: You have an executable installer (.exe)

  1. Disable Driver Signature Enforcement (Critical for some Jinka drivers):

    The installation was silent. No progress bar. No confirmation chime. Instead, the red light on the Jinka 721 blinked once. Then, his monitor flickered.

    USB-to-Serial Driver: Most Jinka cutters use a CH340 or CH341 chip for their USB connection. You can download the official CH341SER.EXE driver which supports Windows 10 and 11.

    : For modern features like contour cutting, using software like SignMaster is often more reliable than older legacy drivers. Microsoft Learn Are you using a specific software like SignMaster CH341SER.EXE - Nanjing Qinheng Microelectronics Co., Ltd.

    ⚠️ Important first step – Identify the actual device

    “Jinka 721” is not a common or mainstream device name from major manufacturers like Realtek, Intel, NVIDIA, or Broadcom.
    It is likely: