1. Make a samba group
sudo groupadd smb
2. Add samba user
sudo adduser --no-create-home --disabled-password --disabled-login sambausername
3. Add user to the smb group
sudo adduser sambausername smb
4. Add samba password
sudo smbpasswd -a sambausername
5. Re-start Samba
sudo service smbd restart
Now you can add printer from remote computer
WordPress shows commands wrong, so look te right commands here