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Scanning from the Manual Mode / Using the EPSON TWAIN Manual Mode Window
Image Type list
Use the Image Type list to select from a variety of predefined and user-defined settings, or use the Image Type button to make detailed changes to settings and to save custom settings.
The Image Type list provides the predefined settings described below. There is a predefined setting to suit most image types, so EPSON recommends using the predefined settings first. Click the arrows on the right to view all of the available settings. If you later want to make fine adjustments to the Image Type setting, use the Image Type button. See Image Type button for details.
 | Note: |
 | When Document Source is set to TPU: Monochrome Neg.Film, or the Thumbnail preview is activated, only Color Photo and Black & White Photo are available in the Image Type list. |
48-bit color, best quality
This setting is useful when scanning positive or negative film for further editing.
| Note: |
| This setting is available only in certain applications, such as Adobe Photoshop. |
24-bit color, best quality
This setting is useful when scanning color photo.
24-bit color and best quality with de-screening to remove moiré patterns
This setting is useful when scanning magazines or catalog in color. About moiré, see Moiré (cross-hatch) patterns appear in the scanned image..
16-bit gray, best quality
This setting is useful when scanning positive or negative film for further editing.
| Note: |
| This setting is available only in certain applications, such as Adobe Photoshop. |
8-bit gray, best quality
This setting is useful when scanning black and white photo.
8-bit gray, best quality with de-screening to remove moiré patterns
This setting is useful when scanning magazines or catalog in black and white. About moiré, see Moiré (cross-hatch) patterns appear in the scanned image..
24-bit color, best quality with color smoothing
This setting is useful when scanning large area of solid colors (for example, logos, illustrations, and charts).
Black and white, draft quality
This setting is useful when scanning characters-only documents or line drawings without coloring.
Black and white, best quality, and Text Enhancement Technology
This setting is for OCR (Optical Character Recognition).
Black and white, hard halftone, draft quality, and Auto Area Segmentation
The Image Type button opens the Image Type dialog box, where you can customize the Image Type settings described in this section.
Click the Image Type button. The following dialog box appears.
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To save the settings you made as a group of custom settings, type a new name in the Image Type Name box, then click Save. To delete a custom Image Type setting, select the setting name then click Delete.
To apply the settings you made, click OK. To cancel the settings, click Cancel.
The names of predefined settings and any custom settings you have saved appear in the Image Type Name list.
Select scanning colors from:
48-bit Color
24-bit Color
16-bit Gray
8-bit Gray
Black & White
| Note: |
| Be aware that some applications do not support more than 24 bits of color or 8 bits of gray. |
Use this setting to select between speed and quality. Best provides the best quality image, while Draft provides faster scanning with some loss of quality.
Select either On or Off. When On is selected, moiré patterns are automatically removed from scanned images, but scanning takes longer. About moiré, see Moiré (cross-hatch) patterns appear in the scanned image..
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Select either On or Off. When On is selected, colors in an image are related to limited number of index colors. This is useful when scanning large areas of solid colors (for example, logos, illustrations, and charts).
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Allows you to specify the type of adjustment made by the Auto Exposure feature.
When Photo is selected, Auto Exposure activates and optimizes image enhancement for photographic image source. When Document is selected, Auto Exposure optimizes image enhancement for printed matters, such as brochure, magazine or newspaper. When scanning photographs or documents that contain high quality images, select Photo. Select Document when scanning printed text.
You can see the effects of the Auto Exposure Option setting in the Preview window when you click the 
Auto Exposure button or preview the image with the Continuous Auto Exposure check box selected in the Configuration dialog box.
| Note: |
| Auto Exposure Option appears dimmed and is not available when Pixel Depth is set to Black & White. |
Select a color to subtract from a black and white scan of a colored original. Proper use of dropout can improve the quality of your black and white scans. Available dropout options are:
None, Red, Green, and Blue.
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These options are useful when scanning text or grayscale images. Select from:
Text Enhancement Technology, Auto Area Segmentation, or None.
Text Enhancement Technology (TET)
To improve recognition accuracy during OCR (Optical Character Recognition) scanning, select this option. This function eliminates the document background from scans.
Auto Area Segmentation (AAS)
To make grayscale images clearer and text recognition more accurate, select this option. This function separates text from graphics.
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Select a halftone or dither setting to reproduce images using special dot patterns:
Mode A (Hard Tone)
Mode B (Soft Tone)
Mode C (Net Screen)
Dither A (4 x 4 Bayer)
Dither B (4 x 4 Spiral)
Dither C (4 x 4 Net Screen)
Dither D (8 x 4 Net Screen)
None
| Note: |
| Halftone is available only when Pixel Depth is set to Black & White. |
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| Version 1.00E, Copyright © 2002, SEIKO EPSON CORPORATION |
