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.
You are looking at the wrong product, that isn't a valid model number, you would have an MFC-J480DW. That 2nd zero you have should be a letter D
If you have the printer software installed properly, it will work from any application though, and nothing special is needed from brother to print envelopes. You can print envelopes from a word processing program such as Microsoft Word or Word Perfect.
Do you need more help with this, Ronald?