This document scanner can send documents directly to an FTP-Server. Install vsftp via aptitude install vsftpd and set /etc/vsftpd.conf as following:
listen=YES use_localtime=YES xferlog_enable=YES connect_from_port_20=YES secure_chroot_dir=/var/run/vsftpd/empty pam_service_name=vsftpd write_enable=YES anonymous_enable=YES anon_upload_enable=YES anon_mkdir_write_enable=YES anon_root=/data/ftp
This enables anonymous uploading for everyone! Create /data/ftp/incoming and chown it to ftp.ftp. Add the following section in /etc/samba/smb.conf to enable easy access to Windows clients:
[scans] comment = Scans path = /data/ftp/incoming force user = ftp force group = ftp read only = No