You have "double cut" enabled in the driver or software. Go to Device Settings → Advanced → Set "Number of Passes" to 1.
Windows-compatible driver and control software for the ROHS 721 cutting plotter; enables precise cutting of vinyl, paper, and heat-transfer materials with speed, blade control, and job management. Rohs 721 Cutting Plotter Driver Pc
Using the Rohs 721 Cutting Plotter Driver PC is easy: You have "double cut" enabled in the driver or software
Cutting-drawing plotter PC-XL721 with contour cutting function Using the Rohs 721 Cutting Plotter Driver PC
| Parameter | Value | |-----------|-------| | Max cutting width | 720 mm (28.3 in) | | Max media width | 790 mm (31.1 in) | | Cutting force | 0–500 g | | Speed | 10–800 mm/s | | Communication | USB + Serial (RS232) | | Supported formats | DXF, AI, PLT, SVG (via software) |
Most 721 models use the or FTDI chip to handle the USB connection.