All that was needed for my Brother DCP-L2550DW was to 'apt purge' the manually installed drivers:
$ sudo apt --auto-remove purge brscan4 dcpl2550dwpdrv Then *BE SURE* to use the Brother installer script: linux-brprinter-installer-2.2.1-1.gz (or whatever your current version is from the support.brother.com website, etc.) Follow the instructions from the Brother download site and during the script installation to-the-letter(EXACTLY)! *** CAVEAT: use the printer I.P. addy if on a LAN and _NOT_ the auto- detected mDNS addy if you have an AT&T Fiber residential gateway such as mine(BGW210-700) which has a ".local" domain hard-coded in the DNS. This effectively kills mDNS(Avahi) broadcasts and so I'm not able to connect to the printer using that system. CUPS Connection: lpd://192.168.1.220/BINARY_P1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1728012 Title: Many 3rd party scanner drivers are broken by a sane change To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1728012/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
