If any program (driver, PPD, ...) generates " Custom.A4" this is totally wrong. It must be either a paper size listed in the PPD, like "A4" or "A4.Duplex" or "Custom" with an explicit size in numbers, like "Custom.10x20cm", or "Custom.8x11in". Also simply "Custom" is wrong.
So one needs to find out what generates "Custom.A4" and to which package this belongs. A possible SRU for Xenial would be to remove the script which modifies the hpcups.drv file. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1568996 Title: Duplex printing does not work properly for HP printers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/1568996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs