No. Seems to be the option "-l" which causes systemd to shutdown cupsd and to restart if a print job is available. For applications with pre-checks for available printers or given printer names (for instance with java javax.print.PrintServiceLookup) or with CUPS web Interface on demand this does not work. I changed the option "-l" to "-f" in /lib/systemd/system/cups.service.
No. Seems to be the option "-l" which causes systemd to shutdown cupsd and to restart if a print job is available. For applications with pre-checks for available printers or given printer names (for instance with java javax.print. PrintServiceLoo kup) or with CUPS web Interface on demand this does not work. I changed the option "-l" to "-f" in /lib/systemd/ system/ cups.service.