Have you tried this workaround described in bug https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1741977 message #4? Are you using USB3 socket? Does it work on USB2?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1779185 Title: Brother MFC-9440CN will not scan with 18.04 LTS Status in sane-backends package in Ubuntu: New Bug description: Have Brother MFC-9440CN multifunctional system connected to PC running 18.04 LTS. Everything on the MFC-9440CN worked before upgrade from 16.04 LTS to 18.04 LTS. All Brother software for this device downloaded and installed after upgrade, including the UDEV package. Xsane and all other required packages loaded. Scanner will not work. If I reboot PC to run Win XP (all my PCs are dual boot), scanner works fine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1779185/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
