Error in install of converted deb print driver from Brother?

Your printer should work with Print Anywhere, see this link for details Adding cups-browsed to all Manjaro ISO

A long as your printer is on your network, it should detect and install the printer every time you start to computer.

Just for testing, download my DeLinuxCo ISO it will boott into Live mode automatically like Manjaro Cinnamon and will detect any printers on your network, as long as your connected to your network. If it detects the printers, it’s a configuration issue on your pc, if it does not, read this thread

https://forum.manjaro.org/t/adding-brother-dcp7065dn-as-a-network-printer-in-home/167180