Set the to 9600 (or sometimes 38400, depending on the model version). 5. Troubleshooting Common Issues Issue 1: "Cutter Not Found" / Port Error
Most Chinese-manufactured cutting plotters utilize the or CH341 USB-to-Serial chip. What it does: It creates a virtual COM port on your PC. jk 721 cutting plotter driver
Newer versions of Windows require . If your driver fails to install, you may need to temporarily disable "Driver Signature Enforcement" in your Windows recovery settings. Conclusion Set the to 9600 (or sometimes 38400, depending
Windows Power Management turning off the USB port, or static electricity interference. What it does: It creates a virtual COM port on your PC
A: Download the CH340 driver from the official WCH website. Then download a trial of Sure Cuts A Lot. Ignore the "branded" driver CD – it is often just a repackaged CH340 driver.
Re-verify the COM port number in Device Manager. If your software only allows ports COM1 through COM4, but Windows assigned COM9, manually change it. In Device Manager, right-click the CH340 device →right arrow Properties →right arrow Port Settings →right arrow Advanced →right arrow Change the COM Port Number to an open slot between 1 and 4. 2. The Cutter Scatters Random Lines or Halts Mid-Cut
Right-click on or 'My Computer' > Manage > Device Manager . Look under "Other Devices" or "Universal Serial Bus controllers." If you see a yellow exclamation mark next to "USB2.0-Serial," you need the CH340 driver. 3. Installing the Driver