I have never been able to get my SP300v to work on WIN10 using VW, It will work on SignLab10 and WIN10. I use WIN7 for VW and works fine. I haven't tried in a while but try running VW in compatibility mode for WIN7 with the WIN10 updates things may have changed.
Sorry for bothering you but by chance you don't have the driver for this printer.
I can't find it anywhere. I'd appreciate it a lot. Regards!