Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
That is not a model number, it is a feature.
The model would be something like Brother GX-6750, if you can look on the bottom for a sticker it should show the proper model number there, and I can then help you find the necessary info on it.