Epson S5 Series/77c Manuale Utente

Also keep these considerations in mind: 

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Place the projector on a sturdy, level surface.

■

Make sure there is plenty of space for ventilation around and 
under the projector. Do not set the projector on top of loose 
papers that could block the vents under the projector. 

■

Make sure the projector is within 6 feet (2 m) of a grounded 
electrical outlet or extension cord. 

Try to place the projector directly in front of the center of the screen, 
facing it toward the screen squarely. If the projector isn’t positioned 
this way, the image will be “keystone” shaped, instead of square or 
rectangular.

If you place the projector below the level of the screen, you’ll have to 
tilt it up by extending the front adjustable foot, as described on 
page 39. This also causes the image to lose its rectangular shape. You 
can adjust the shape using the buttons on the projector (see page 39), 
or using the projector’s menu system (see page 61). 

On the PowerLite 77c, the Auto Keystone feature corrects the 
distortion automatically. See page 62 for more information about 
Auto Keystone correction. If necessary, you can adjust the image 
shape manually as described on page 39. 

You can also project from behind the screen or from the ceiling, with 
the projector mounted upside-down: 

epson.com/support

Front/ceiling projection

Rear projection (using a 
translucent screen)

Rear/ceiling projection (using 
a translucent screen)