Print over USB doesn't start!

[HexHyte]

Hello guys!

I'm experiencing some troubles in printing over USB.

When i click on "Begin Printing over USB" after the slicing process nothing happens.. Simplify doesn't even start heating the Tools...
In the "Communication" tab inside the "Machine Control Panel" an error message is showing:
READ: rs N0

Any tips?

[CompoundCarl]

Sounds like the firmware isn't accepting any commands. Have you tried sending it other manual commands using the terminal?

[HexHyte]

[...] Have you tried sending it other manual commands using the terminal?

Absolutely! Everything work except for the printing process