simple-scan resets the samsung C480 MFP when scaning in photo mode

I have just installed a Samsung MFP Xpress C480FW.
The printer is working ok
The simple-scan is working ok if I choose to scan in "Text" mode. It also scans multipages, with no problems at all. Congratulations for the great tool. It is simple and do the job.

However if I try to scan in "Photo" mode, smple-scan sends something to the Samsung MFP that the printer/scanner reboots/resets/reinitialize.
Only "Photo" mode does that.

I have installed xsane and it is a little bit more complicated to scan (lots of options). xsane *can* scan with no reset/reboot of the Samsung MFP.

It seems to me that some command simple-scan is sending to the Samsung MFP that is making it reinitialize.
The Samsung MFP Xpress C480FW is networked attached (wirelessly).

My Ubuntu is:
ulisses@dell-server:~$ lsb_release -rd
Description: Ubuntu 16.04.3 LTS
Release: 16.04
ulisses@dell-server:~$ apt-cache policy simple-scan
simple-scan:
  Instalado: 3.20.0-0ubuntu1
  Candidato: 3.20.0-0ubuntu1
  Tabela de versão:
 *** 3.20.0-0ubuntu1 500
        500 http://br.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status