Ubuntu 9.04 is no longer supported, please update to a supported release with newer hplip. Do you still need to modify the PPD to get duplex going?
** Changed in: hplip (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/423618 Title: Error printing two sided on HP OfficeJet Pro L7600 - wrong PPD file in package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/423618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs