The original CUPS systemd patch used DirectoryNotEmpty=/var/spool/cups to spawn CUPS when there were queued jobs. This should be fixed to use PathExistsGlob=/var/spool/cups/p* instead which has now been supported in systemd for some time. (IIRC the prefix for actual jobs was p, right? If not, use the right prefix...)
Thanks. (The prefix is d actually.)
cups-1.5.0-14.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/FEDORA-2011-13168
Package cups-1.5.0-14.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing cups-1.5.0-14.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2011-13168 then log in and leave karma (feedback).
Package cups-1.5.0-15.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing cups-1.5.0-15.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2011-13168 then log in and leave karma (feedback).
Package cups-1.5.0-16.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing cups-1.5.0-16.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2011-13168 then log in and leave karma (feedback).
cups-1.5.0-16.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.