Ubuntu 17.10 and Samsung SCX-4624F Scanner not working

It turned out that in SANE 1.0.27 released in May 2017 had some USB fix disabled (printer/scanner with USB 2.0 has problems with USB 3.0 port).

It is possible to enable the fix with the new environment variable SANE_USB_WORKAROUND=1. After I added it to the .bashrc, Simple Scan started to work correctly.