Have you received the following error notification: "connection to engraver is broken” in the JobControl® software? If so, the problem is probably the Windows settings for your USB connection. You can fix this problem by updating your settings in Windows. Below are three steps for establishing a functioning USB connection:
3. In the tab "Device manager" select the USB interface you wish to use. Then go to “Energy management" and right-click on “Adjustments,” and deselect “Computer can switch off the device to save energy.”
Now re-connect the laser to your PC via the button in the JobContol® software. The problem should now be solved.