Thanks so much Jan! I did download from the Brother site - including a "firmware" update - but I will try this since what I believe I just downloaded was not* that* current. In my case I would not mind "buying" a third party driver if it puts the issue to bed! My MacBook Air Pro 15" is my 6th Mac - having previously had a 512k, Plus, Quadra, iBook, G4... the G4 my fav of that group. I went to PC due to cost but the OS just stinks IMO. From 1980 I worked for two systems software firms in the Princeton area.
A few things seem to be managed a bit differently now - since my last use of the G4 was in 2012. I'll work it out. So I am "old guard" Mac and as always - the community is fabulous. I once was part of a Mac chatroom which was global - there was a Jan there??? We even all met-up in London in 2004 and I remain friends with one of the group heads... but I messaged this board first since I need to be (as it were) back "home".
Let me know if I can help you with anything. Shall I let you know how it goes??? (lol, hahahahaha)
Celt