I posted here earlier the solution I made for several models of scanners (based on s400w scanner) to work With Linux SANE-Airscan and Mac OS, with the link to scannershare.com. Since then the web site was completely renovated and several people tried to download it and got the wrong file.
If any downloads were from users of this list, please try again , it has now been fixed. My apologies for the error.
