Notes for future reference:
Printing just worked using the 'Printing' GUI.
Scanning Didn't.....the SimpleScan programme did not detect the scanner.
The trick is to install a driver that pretends that the networked scanner is connected locally using the SANE interface, brsaneconfig4
Doing:
brsaneconfig4 -q lists the scanners that are available.
brsaneconfig4 -a name=SCANNER model=MFC-L3750CDW ip=192.168.0.19
adds the scanner, and it now works nicely with simplescan.
