I indeed used "LPD/LPR Host or Printer" and "socket://brother:9100" as address. What connection type did you try?
This package is based on https://aur.archlinux.org/packages/brother-mfc-l2750dw that package (same as this one btw) states "LPR and CUPS driver for the Brother ...".
Pinned Comments
enginefeeder101 commented on 2019-12-17 15:25 (UTC) (edited on 2019-12-17 16:08 (UTC) by enginefeeder101)
Printing to the Brother MFC-L2710DW stopped working for me on the three (3) Arch machines I operate. I tried debugging, but cannot find any errors, I suppose it might have something to do with multilib issues. To circumvent this issue, I switched to using a Debian based cups docker and that shares my Brother as a raw printing device to my Arch machines.
https://hub.docker.com/r/enginefeeder101/docker-cups-brother-mfc-l2710dw