scanner not working under elementaryos 7.1/ubuntu 22.04

Hi,

I read https://help.ubuntu.com/community/SaneDaemonTutorial and made all 
configs (except I do not need network access but rather simple-scan 
locally), but still saned* ist not working. I used to do this some time 
ago without problems (same eOS/ubuntu version, but before clean 
re-install), but now I can't get it working.

  * scanimage -L finds the local brother scanner (brscan4, was missing
    by default)
  * simpe-scan find the scanner as well, but hangs wenn starting the scan
  * saned service is masked:
      o service saned status
        ○ saned.service
              Loaded: masked (Reason: Unit saned.service is masked.)
              Active: inactive (dead)

  * saned.socket seems to be fine:
      o sudo systemctl status saned.socket
        ● saned.socket - saned incoming socket
              Loaded: loaded (/lib/systemd/system/saned.socket; enabled;
        vendor preset: enabled)
              Active: active (listening) since Wed 2024-01-03 00:41:02
        CET; 25min ago
              Listen: [::]:6566 (Stream)
            Accepted: 0; Connected: 0;
               Tasks: 0 (limit: 18917)
              Memory: 4.0K
                 CPU: 590us
              CGroup: /system.slice/saned.socket

        Jan 03 00:41:02 said15 systemd[1]: Listening on saned incoming
        socket.

What can I do now?

Mit freundlichen Grüßen / With kind regards

Dr. Stefan Haas
Director
S.A.I.D. Ltd.
OYIA Building, Floor 2, Cross Road Marsa
Marsa MRS1547
MALTA
[email protected]