The 721 series cutting plotter (often branded under MH721, KH-721, or Refine) is one of the most reliable, budget-friendly vinyl cutters on the market. However, because these machines rely on legacy USB-to-serial communication, getting Windows 10 to recognize the device can be a challenge.
Found in most budget, generic, or newer MH721/KH721 models.
If your plotter uses the CH340 chip, download the driver directly from the official manufacturer website ( WCH-IC ). Look for the CH341SER.EXE installer package which fully supports Windows 10 64-bit. cutting plotter 721 driver windows 10
: A separate driver is only needed in two specific situations:
What (SignMaster, ArtCut, etc.) are you using? The 721 series cutting plotter (often branded under
Ensure the model is set to or a generic DMPL/HPGL driver.
The core of the problem is simple: the "driver" you probably need is for the plotter's USB-to-Serial chip. Once that virtual COM port is established, your cutting software is the tool that tells the plotter what to do, using the HP-GL (Hewlett-Packard Graphics Language) commands it understands. If your plotter uses the CH340 chip, download
If your software detects the plotter but nothing happens when you send a cut, check the following:
: You must match the COM port assigned by Windows to the one selected in your cutting software (e.g., SignMaster , SignCut, or Artcut). 2. Step-by-Step Installation Guide