Look for "USB Serial Port" or "USB Printing Support." Note the number (e.g., ).
| Setting | Value | | :--- | :--- | | | Windows Driver (or WP8800, or Generic Serial) | | Port | COM3, COM4, or COM5 (check Device Manager) | | Baud Rate | 9600 (most common) or 19200 | | Data Bits | 8 | | Parity | None | | Stop Bits | 1 | | Flow Control | Hardware (or Xon/Xoff if hardware fails) |
Windows 10 frequently puts USB ports to "sleep" to save power, which breaks data transmission during long cuts. In Device Manager, expand Universal Serial Bus controllers . cutting plotter 721 driver windows 10
Try a different USB port, preferably directly into the computer rather than a USB hub.
Highly recommended for MH-721, specialized for vinyl cutting. Look for "USB Serial Port" or "USB Printing Support
Hi everyone,
Set the Port to match the exact number found in your Device Manager (e.g., COM3 ). Try a different USB port, preferably directly into
Current versions of Windows 10 often have these drivers pre-loaded. Manual downloads are available on the USCutter Support Portal Refine MH721