trying http://download.brother.com/welcome/dlf103250/mfcl8690cdwcupswrapper-1.4.0-0.i386.deb
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0    10    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
curl: (22) The requested URL returned error: 404
error: cannot download mfcl8690cdwcupswrapper-1.4.0-0.i386.deb from any mirror