Cups-lpd Permission issues

Going from SLES 11 to LEAP 15 i got plenty of problems enabling needed CUPS-LPD

Activated via systemd:
Nameofhost:/etc # systemctl status cups-lpd.socket

  • cups-lpd.socket - CUPS LPD Server Socket
    Loaded: loaded (/usr/lib/systemd/system/cups-lpd.socket; enabled; vendor preset: disabled)
    Active: active (listening) since Tue 2019-05-14 07:39:42 CEST; 24h ago
    Listen: ::]:515 (Stream)
    Accepted: 3; Connected: 0

May 14 07:39:42 Nameofhost systemd[1]: Listening on CUPS LPD Server Socket.

Checking cups:

Nameofhost:/etc # systemctl --full status cups

  • cups.service - CUPS Scheduler
    Loaded: loaded (/usr/lib/systemd/system/cups.service; enabled; vendor preset: enabled)
    Active: active (running) since Wed 2019-05-15 07:09:14 CEST; 1h 21min ago
    Docs: man:cupsd(8)
    Main PID: 22217 (cupsd)
    Tasks: 2 (limit: 4915)
    CGroup: /system.slice/cups.service
    `-22217 /usr/sbin/cupsd -l

May 15 07:09:14 Nameofhost systemd[1]: Started CUPS Scheduler.

Listening to Port 515
Nameofhost:/etc # netstat -tulpn |grep 515
tcp6 0 0 :::515 :::* LISTEN 1/systemd

Error from Journalctl:
May 15 06:47:06 Nameofhost systemd[1]: Started CUPS LPD server (10.21.119.136:1023).
May 15 06:47:06 Nameofhost cups-lpd[21427]: Connection from Nameofsender (IPv6 [v1.::ffff:10.21.119.136])
May 15 06:47:06 Nameofhost cups-lpd[21427]: Receive print job for FP2B150
May 15 06:47:06 Nameofhost cups-lpd[21427]: Print file - job ID = 25
May 15 06:47:06 Nameofhost cups-lpd[21427]: Unable to send document - Nicht berechtigt

Any hint will be gratefully assumed

I am trying to interprete this. Is it just a remark to give us an idea what your experience in Linux is, or has it technical implications, e.g. that you installed Leap 15.0 while keeping some things from SLES 11?

Normaly, you just go to YaST > System > Services Manager, select cups (and maybe cups-browsed)) and below click start and from StartMode check On boot.

I assume that configuring a printer from YaST > Hardware > Printers will have the switching on (if needed) as a side effect.