HP Digital mp2210 - Manual (Page 33)

Adjusting the picture 33
Adjusting a slanted picture
If the projector is tilted up or down, the sides of the picture on the screen might slant in or out,
even though the top and bottom are level. The keystone adjustment corrects this problem.
1. Press enter, go to Quick choice > Keystone, and press enter.
2. Press left or right until the sides of the picture are not slanted.
TIP: If the top and bottom of the picture slant in different directions, move the projector until it
is straight in front of the screen, not off to one side.