You can use the projector's Quick Corner setting to correct the shape and size of an image that is unevenly rectangular on all sides.

  1. Turn on the projector and display an image.
    Note: You can display a pattern to aid in adjusting the projected image using the Settings menu.
  2. Press the Menu button.
  3. Select the Settings menu and press Enter.

  4. Select the Keystone setting and press Enter.
  5. Select the Quick Corner setting and press Enter. Then press Enteragain. You see the Quick Corner adjustment screen:

  6. Use the arrow buttons on the projector or the remote control to select the corner of the image you want to adjust. Then press Enter.
  7. Press the arrow buttons to adjust the image shape as necessary.
  8. When you are finished, press Esc.

This article copied from Epson