Here is the detialed steps for you to adjust image on Cannon WUX5800 Projector
1. Adjusting the Computer’s Output Resolution
The projector’s maximum resolution is 1920x1200p. For details on adjusting your computer’s output resolution, refer to the manual for
your computer.
2. Focusing / Resizing the Image
Press the ZOOM button on the remote control to adjust the image size, and press the FOCUS button to adjust the focus. You can also press the LENS button on the projector once to adjust focus and twice to adjust image size.
Read more:
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