The image is not rectangular. What should I do?

• In most cases, you can maintain a square or rectangular image by placing the projector directly in front of the center of the screen with the base of the lens level with the bottom of the screen.
  
  Even if the projector is slightly tilted (within a range of 30° up or down), the projector has an automatic keystone correction function that detects and corrects vertical keystone distortion.
  
  
  It takes about one second after projection starts for the image to be corrected. During this time, a vertical keystone correction gauge appears on the screen.
  
  If your image is still distorted, you can correct it with the Keystone correction.