This model's toner is trivially reset with a one-time purchase of a $2 reset gear or a button press combo. The reviewer must not be aware of this. There's also

This model's toner is trivially reset with a one-time purchase of a $2 reset gear or a button press combo. The reviewer must not be aware of this. There's also a fill port right on this printer's starter cartridges. Brother even provided a removable and reusable fill plug.