Procedure

Follow the steps below to turn the laser engraver on

Turn on the power switch to the outlet strip behind the machine
Turn on the controller power switch on the side of the machine
Turn on the air pump power switch on the side of the machine
Turn on the water cooler power switch

When the water cooler turns on it will beep several times as it initializes. If it beeps later on then it means there is a problem with it.
Turn on the laser power switch on the side of the machine
Wait for the laser head to stop moving and the controller to finish initializing

After the laser engraver is powered on you can run your design on it.

"By the word of the LORD the heavens were made, and by the breath of his mouth all their host. - Psalm 33:6"