1 Press Adjustment/operational checkout on the maintenance menu. 
If  Adjustment/operational  checkout  is  not  displayed  on  the  maintenance  menu,  set  the 
service personnel maintenance mode on the login user selection screen. 
 
   “Adjustment/operational checkout menu” is then displayed. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  2 Press Level sensor confirmation. 
 
 The level sensor confirmation screen is then displayed.   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
For information on changing to the service personnel maintenance mode, refer 
to “2.1 Setting of service personnel maintenance mode.”