[fernando@pc-fernando ~]$ systemctl enable org.cups.cupsd.service
[fernando@pc-fernando ~]$ systemctl start org.cups.cupsd.service
[fernando@pc-fernando ~]$ sudo systemctl status org.cups.cupsd.service
● org.cups.cupsd.service - CUPS Scheduler
   Loaded: loaded (/usr/lib/systemd/system/org.cups.cupsd.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2017-02-06 12:44:06 BRST; 4h 2min ago
     Docs: man:cupsd(8)
 Main PID: 686 (cupsd)
   Status: "Scheduler is running..."
   CGroup: /system.slice/org.cups.cupsd.service
           └─686 /usr/bin/cupsd -l

fev 06 12:44:06 pc-fernando systemd[1]: Starting CUPS Scheduler...
fev 06 12:44:06 pc-fernando systemd[1]: Started CUPS Scheduler.
fev 06 12:45:29 pc-fernando python[1589]: io/hpmud/pp.c 627: unable to read device-id ret=-1
fev 06 12:46:01 pc-fernando python[1679]: io/hpmud/pp.c 627: unable to read device-id ret=-1
fev 06 12:46:25 pc-fernando hp[1754]: io/hpmud/pp.c 627: unable to read device-id ret=-1
fev 06 12:46:42 pc-fernando python[1767]: io/hpmud/pp.c 627: unable to read device-id ret=-1
fev 06 13:45:03 pc-fernando hp[5229]: io/hpmud/pp.c 627: unable to read device-id ret=-1
fev 06 13:45:04 pc-fernando python[5233]: io/hpmud/pp.c 627: unable to read device-id ret=-1