Complete working code
#AutoIt3Wrapper_UseX64=y
ConsoleWrite(@SystemDir & @CRLF)
Run("C:\Windows\system32\WFS.exe")
$hWnd = WinWait("Windows Fax and Scan", "", 3)
ConsoleWrite("$hWnd=" & $hWnd & @CRLF)
If $hWnd Then
WinActivate($hWnd)
; With ControlCommand
ControlCommand($hWnd, "", "ToolbarWindow322", "SendCommandID", 177) ;from Au3Info ToolBar tab
;~ ; With Menu
WinMenuSelectItem($hWnd, "", "&File", "&New", "&Scan")
; Wait the New Scan win
$hScanDlg = WinWait("New Scan", "", 3)
ControlClick($hScanDlg, "", "Button4")
EndIf