Dell C7765DN, Руководство пользователя

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Image Enhancement (Erasing the Background Color of Documents/Adjusting Contrast)
This feature allows you to suppress the background color of documents, such as newspaper
and colored paper. You can also adjust the contrast.
Note • [Image Enhancement] is not available when [Original Type] is set to [Photo].
• If [Suppress Background] or [Contrast] is set concurrently with [Color Effects], the setting made in
[Color Effects] will be cleared.
1
Select [Image Enhancement].
2
Set [Suppress Background] and [Contrast].
Suppress Background
• Off
Scans document backgrounds with no filtering.
• Auto Suppression
When [Output Color] is set to [Black & White], the background of a document printed
on colored paper, such as newspaper, will be suppressed.
When [Output Color] is set to [Color], [Dual Color], or [Single Color], the color element
on white-color paper such as the blot, the print on the other side which is seen through
and so on will be suppressed.
Note • When [Output Color] is set to [Color], you can change the level of background suppression. For more
information, refer to "Background Suppression (Photo & Text)" (P.355) and "Background Suppression
Level (Text)" (P.355).
Contrast
• Auto Contrast
Automatically adjusts the brightness and hue of the original document to sharpen the
image.
Note • [Auto Contrast] is not available when you use the document feeder.
• Manual Contrast
Allows you to select from the five levels between [More] and [Less].
Selecting an upper cell on the bar makes the difference between light and dark areas
greater; light areas become lighter and dark areas darker. In contrast, selecting a lower cell
on the bar makes the difference between light and dark areas smaller.