zilvia, What program were you using to print the other files that didn't duplex correctly?
-- [upstream] Cannot print double-sided on HP Officejet https://bugs.launchpad.net/bugs/376193 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs