Using Basic Projector Features
If the projected image is fuzzy or blurry, try the following solutions:
Adjust the image focus.
Position the projector close enough to the screen.
Position the projector so the keystone adjustment angle is not so wide that it distorts the image.
Clean the projector lens.
To avoid condensation on the lens after bringing the projector in from a cold environment, let the projector warm up to room temperature before using it.
Adjust the Sharpness setting in the projector's Image menu to improve image quality.
If you are projecting from a computer using a VGA computer cable and any bands or overall blurriness remain, display a uniformly patterned image on the screen and manually adjust the Tracking and Sync. settings in the projector's Signal menu. (PowerLite 994F)
If you are projecting from a computer, use a lower resolution or select a resolution that matches the projector's native resolution.