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User Controls
20 Xerox DP 820 User’s Guide
Image Menu
Contrast—Controls the degree of difference between the lightest
and darkest parts of the image. Adjusting the contrast changes the
amount of black and white in the image. The higher the number the
greater the contrast.
• Press the button to decrease the contrast.
• Press the button to increase the contrast.
Brightness—Lightens or darkens the image. The higher the
number, the lighter the image.
• Press the button to darken the image.
• Press the button to lighten the image.
You may need to readjust the Brightness after the projector warms
up.
Keystone—Adjusts image distortion caused by tilting the projector.
• Press the button to reduce the upper width.
• Press the button to reduce the lower width.
Do not change this setting when displaying text or spreadsheets.
Changing the Keystone setting may distort the displayed text.
Aspect Ratio—Adjusts the length-to-width aspect ratio of the
image to be 1:1, 16:9, or 4:3.
The 1:1 setting is available only for a computer connection (with
the VGA cable) with a resolution of less than SVGA (800 x 600). If
the input signal is a computer signal greater than SVGA, or
component 1080i/720p, only the 16:9 or 4:3 aspect ratios are
available.