Epson Z8250NL - Manual (Page 33)

Changing the Aspect Ratio of the Projected Image
33
q If parts of the image are missing or it cannot project everything, set the
Resolution
setting to Wide or Normal from the configuration menu
depending on the size of the computer panel. s p.62
16:9 (Down)
Native
Aspect
mode
Input Signal
XGA
1024X768
(4:3)
WXGA
1280X800
(16:10)
SXGA
1280X1024
(5:4)