If the screen does not respond correctly when you touch a key (the machine does not perform the operation or performs a different operation), follow the steps below to make the proper adjustments.
 
 

1. Holding your finger on the screen, turn the main power switch to OFF and back to ON. >> The touch panel adjustment screen is displayed.
    
   
   
    


2. Lightly touch the center of each +, in order from 1 to 5.
   
   
   
    
3. Turn the main power to OFF, then turn it back to ON.