Brother MFC-7860DW

AUR package

Seemingly the driver does not respect settings received from CUPS. On first install, this printer may print misaligned pages and not duplex. To fix both, edit the following file and set the paper to letter and duplexing to ON: /usr/share/brother/printer/MFC7860DW/inf/brMFC7860DWrc

I have had some trouble printing from the (Gnome?) system print UI. Sometimes it works, sometimes it doesn't. But even when it doesn't work, I've been able to print directly w/ LPR, e.g.:

  # sudo lpr -P Brother_MFC-7860DW \
      -o media=letter -o sides=two-sided-long-edge foo.ps

You can get the list of printer names on the console with lpstat -t.