Previously used HP printers, and MCC took care of everything.
This time I have a brother Multi-function: MFC-L3750CDW
I have it connected via ethernet: I can print via a windows PC, and the web page/admin of the actual machine is accessible from machines on the network.
I tried various things through MCC and http://localhost:631
The exact printer wasn't listed so I tried a few different drivers, but no luck.
Then I used the brother linux installation tool: https://support.brother.com/g/b/downloadend.aspx?c=us_ot&lang=en&prod=mfcl3750cdw_us_eu_as&os=127&dlid=dlf006893_000&flang=4&type3=625&dlang=true
At least after that, I have the correct printer/driver listed, but the same result: everytime I try to print the test page the status is always "unable to find printer"
All help most appreciated.