FujiFilm EB-530US Operation Manual page 57

(4) Remove the EVE connector from the processor.
(5) Remove the LG connector from the light source.
(6) Turn off the power supply of the ultrasonic processor.
(7) Loosen the lock handle and dismount the US connector
from the ultrasonic processor.
<Combination with the EPX-2500 system>
(1) Press the key on the keyboard of the ultrasonic
processor to freeze the ultrasonic image.
(2) Turn OFF the power switch of the processor.
Chapter 5 Preparation for Use of Ultrasonic Endoscope
5-19