Epson 10020 - Manual (Page 30)

Adjusting the Keyboard Angle
You can change the angle of the keyboard by adjusting the legs
on the bottom. Follow these steps:
1. Turn the keyboard over.
2. Press down on the front part of each leg, as shown below,
and then use your thumbs to lift up the legs until they lock
into place.
3. Turn the keyboard right-side up.
Setting Up Your System 1-13