I don't have a printer to actually test this, but it seems it's a long- standing upstream issue: https://bugs.documentfoundation.org/show_bug.cgi?id=60428.
** Bug watch added: Document Foundation Bugzilla #60428 https://bugs.documentfoundation.org/show_bug.cgi?id=60428 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779432 Title: Libre Writer doesn't do duplex printing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1779432/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
