Epson Z8250NL - Manual (Page 168)

Adjusting the Projected Image
168
• The vertical lens shift is set to the top or bottom.
The correction may not be properly performed for some zoom settings.
And, the projected screen size may become smaller after performing the
correction. Be careful about the projection distance when installing the
projector.
Correct the image using Quick Corner to precisely align the projected
image with the screen or to fine-tune the image. s "Quick Corner"
p.164
Arc Correction
Procedure
A
During projection, press the Menu button. Select Settings
menu - "Geometric Correction" and then press the Enter
button. s "Using the Configuration Menu"
p.55
B
Select "Arc Correction" and press the [Enter] button.
Press the [Enter] button again, and the screen below appears, so
you can select one of the 8 vertical/horizontal areas and corners.
Using the Remote Control Using the Control Panel