I suggest keeping the printer on all the time, as keeping it off for a longtime or by turning it on and off periodically may cause printhead dry out quickly.
I don't know source you are referring. However, they must be talking about their dye sublimation printer series. Most of the brother printers are dye printers, and dye printers don't need pigment ink even if its HP, canon, or Epson.
Helloooo. I hope you people are having a great time here. I'm Sofia and I'm new here. I hope, we'll have interesting and helpful conversations ahead. :)