Epson Gt2500 User Manual

							
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only on the screen
 
96 to 150 dpi 
Print, convert to editable text (OCR) 300 dpi 
Fax 200 dpi 
Enlarge after scanning at 100% Increase Resolution setting by same 
amount you will increase image size after 
scanning
 
If you are scanning only one page and you want to see a preview image fi\
rst, you can preview 
the first page of your document and make any necessary adjustments. See \
Previewing and 
Adjusting the Scan Area to continue scanning.
 
If you are scanning a multi-page document, see Finishing the Scan. 
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Previewing and Adjusting the Scan Area
Once you have selected your basic settings and resolution in Professiona\
l Mode, you can 
preview the first page of your document and select or adjust the area of\
 the image you want 
to scan. EPSON Scan displays the preview image in a separate Preview win\
dow on your 
screen.
 
Follow these steps to preview and adjust the first page of your document\
 in Professional Mode: 
Click the Preview button toward the bottom of the EPSON Scan 
window. The ADF loads your first document page, then EPSON Scan prescans it and \
displays it 
in the Preview window. The ADF then ejects your first page.
  
						

							
Place your first document page on top of the rest of the pages, then loa\
d the entire 
document (up to 50 pages) into the ADF. 
You can do the following to adjust the 
image:
  
						

							
l     To select your scan area, click the  auto locate icon to place a marquee that 
marks the edges of your image area. You can move the marquee to change t\
he scan 
area. See Adjusting the Scan Area (Marquee) for instructions.
 
 
Note:
If you are going to scan at a different size than your original, you mus\
t first 
select your Target Size and automatically create a marquee that is propo\
rtioned 
to that size. See Selecting the Scan Size for instructions.
 
l     To adjust the image quality, click the image and make the adjustments as\
 described 
in Adjusting the Color and Other Image Settings. 
When you have finished adjusting the scan area, and modifying the color \
and image 
settings, you can select the size of your scanned image, if you have not\
 already 
selected it. See Selecting the Scan Size for instructions.
 
Adjusting the Scan Area (Marquee)
A marquee is a moving dotted line that appears on the edges of your prev\
iew image to 
indicate the scan area.
 
You can move the marquee, adjust its size, and create multiple marquees \
on one image to 
scan different image areas in separate scan files. Follow these steps:
  
						

							
To draw a marquee, move your cursor over a preview image. The pointer be\
comes a 
set of cross-hairs. 
Position the pointer in the area where you want to place the corner of y\
our marquee 
and click. Hold down the mouse button and drag the cross-hairs over the \
image to the 
opposite corner of the desired scan area. Then release the mouse button.\
 You see the 
moving dotted line of the marquee.
 
Do one of the following to adjust the 
marquee:
 
l     To move the marquee, position your cursor inside the marquee. The pointe\
r 
becomes a hand. Click and drag the marquee to the desired location.
 
l     To resize the marquee, position your cursor over the edge or corner of t\
he marquee. 
The pointer becomes a straight or angled double-arrow. Click and drag th\
e edge or 
corner to the desired size.
  
						

							
 
Note:
To restrict movement of the marquee to vertical or horizontal only, hold\
 down 
the Shift key as you move the marquee. To restrict sizing of the marquee to 
the current proportions, hold down the Shift key as you resize the marquee.
 
l     To delete the marquee, click inside it and click the  delete marquee icon. 
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Adjusting the Color and Other Image Settings
Once you have previewed your image and adjusted the scan area, you can m\
odify the image 
quality, if necessary. EPSON Scan offers a variety of settings for impro\
ving color, sharpness, 
contrast, and other aspects affecting image quality.
 
Before you make adjustments, be sure to click the image or marquee for t\
he area you want to 
adjust. You also need to scroll down to the Adjustments area of the main\
 EPSON Scan 
window:
  
						

							
The table below describes the settings available in Professional Mode. F\
or details on adjusting 
these settings, click Help in the EPSON Scan window.
 
When you are finished making adjustments, you can size your scanned imag\
e (see Selecting 
the Scan Size) or go ahead and scan (see Finishing the Scan).
 
Setting Available mode(s) and description 
Brightness Adjusts the overall image lightness and darkness. 
Click the  Image Adjustment button to access the 
Brightness setting.
 
Contrast Adjusts the difference between the light and dark areas of 
the overall image.
 
Click the  Image Adjustment button to access the 
Contrast setting.
  
						

							
Saturation Adjusts the density of colors in the overall image. 
Click the  Image Adjustment button to access the 
Saturation setting.
 
Color Balance Adjusts the balance of red, green, and blue colors in the 
overall image.
 
Click the  Image Adjustment button to access the Color 
Balance setting.
 
Auto Exposure 
Click the  Auto Exposure button. To turn it on 
continuously, click the Configuration button, click the Color 
tab, and select Continuous auto exposure. You can adjust 
the level of exposure adjustment using the slider.
 
Unsharp Mask Filter Turn on to make the edges of image areas clearer for an 
overall sharper image. The level of sharpness is adjustable. 
Turn off to leave softer edges.
 
Descreening Filter Removes the rippled pattern that can appear in subtly 
shaded image areas, such as in skin tones. Also improves 
results when scanning magazine or newspaper images which 
include screening in their original print processes. The 
results of the Descreening Filter do not appear in the 
preview image, only in your scanned image.
 
Histogram Provides a graphical interface for adjusting highlight, 
shadow, and gamma levels individually. For advanced users 
only.
 
Click the  Histogram Adjustment button to use the 
Histogram settings.
  
						

							
Tone Correction Provides a graphical interface for adjusting tone levels 
individually. For advanced users only.
 
Click the  Tone Correction button to use the Tone 
Correction settings.
 
Color Palette Provides a graphical interface for adjusting mid-tone levels, 
such as skin tones, without affecting the highlight and 
shadow areas of the image. For advanced users only.
 
Click the  Color Palette button to use the Color Palette 
settings.
 
Threshold Adjusts the level at which the black areas in text and line art 
are delineated, improving text recognition in OCR programs. 
(Available only when you select Black & White as the Image 
Type setting.)
 
 
Note:
l     To view the red, green, and blue levels at particular points in your pre\
view 
image as you make adjustments, click the 
 densitometer icon in the preview 
window and click an image area. See EPSON Scan help for details.
 
l     Certain settings may not be available, or may be automatically selected,\
 
depending on the type of image you are previewing and other settings you\
 have 
selected.
 
l     You can customize how certain EPSON Scan settings behave by clicking the\
 
Configuration button and changing settings in the window that appears. See 
EPSON Scan Help for details.
 
l     To undo any image quality adjustments you make to the preview image, cli\
ck 
the Reset button (if available), turn off the setting, or preview your image 
again.
 
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Selecting the Scan Size
You can scan your images at their original size, or you can reduce or en\
large their size as you 
scan them. You do this using the Target Size setting in Professional Mod\
e.
 
Professional Mode 
If you are going to scan your image to a particular size, you should sel\
ect the Target Size 
setting after previewing it, but before adjusting your scan area (indic\
ated by the marquee). 
This sets the scan area to the correct proportions so your image will no\
t be cropped 
unexpectedly. 
For instructions on previewing your image, see Previewing and Adjusting the Scan Area. Then 
follow these steps to select the Target Size setting:
  
						

							
You can choose a predefined scan size from the Target Size list. Click t\
he arrow in the 
list and select the size you want. A marquee (dotted line) proportione\
d for that size 
appears on your preview image:
 
If you need to create a scan size that is not in the Target Size list, y\
ou can create a 
custom size. Click the arrow in the list and select Customize. You see the Target Size 
window: