can use the projector's horizontal keystone slider to correct the
shape of an image that is unevenly rectangular horizontally, such
as when the projector is placed to the side of the projection area.
Note: To provide
the best possible image quality, adjust the projector's position to
correct the image shape. If this isn't possible, use the horizontal
keystone slider on the projector to correct the image shape.
Note: Your product
may look different from the illustrations in this guide, but the
instructions are the same.