In the past there were FOSS drivers for DCP-1610W and other DCP printers:
http://web.archive.org/web/20211018171313/https://openprinting.org/printers/manufacturer/Brother
Now all these Brother printers are gone. What happened? How can I download a driver for one of those models?
UPD:
I managed to get the driver from AUR, and still it's not clear why the foomatic db discarded a lot of Brother drivers