Epson ELPMB44 Guide De L'utilisateur page 14

Adjusting the Angle Using the Feet
When the frame is placed on the floor, you can adjust the installation angle with the feet.
You can adjust the tilt (horizontal ±3°) and direction (vertically ±3°) of the projector.
Adjusting the tilt: Use the left and right feet.
Adjusting the horizontal angle: Use the front and back feet.
Attention
The feet can be attached and removed. Note that the feet will detach if they are extended too far.
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User's Guide