Have you already tried to change the line "PaperType" from "Letter" to "A4" in file /usr/local/Brother/inf/br(model name)rc or /usr/Brother/Printer/modelname/inf/modelnamerc? After that, you have to restart CUPS with "sudo service cups restart". Credits go to [1].
[1] http://wiki.ubuntuusers.de/Brother/Drucker?highlight=brother%20drucker #Druckbild-verschoben -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to brother-cups-wrapper-bh7 in ubuntu. https://bugs.launchpad.net/bugs/593234 Title: printing on a MFC440CN cut the document's printed head -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs