Epson Gt2500 User Manual

Home > Solving Problems 
Scanning Software Problems
You Cannot Start EPSON Scan  
The Scanner Software Does Not Work Properly  
Scanning Takes a Long Time  
 
Note:
l     Some EPSON Scan settings may be unavailable or grayed out based on your \
scanner’s capabilities, the currently selected settings, or the curre\
ntly installed 
optional accessories.
 
l     If you see a message on your screen telling you that your scanner can wo\
rk 
faster with a USB 2.0 connection, close the message box. You can...

If you are scanning from the document table, see Starting a Scan With Another 
Scanning Program for instructions.
 
l     In the Windows Device Manager, make sure your scanner’s name appears \
under 
Imaging devices without a question (?) or an exclamation (!) mark. If the scanner 
appears with one of these marks or as an Unknown device, uninstall EPSON Scan as 
described in Uninstalling EPSON Scan. Then reinstall it by following the instructions in 
your Start Here sheet.
 
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The Scanner Software...

system requirements. See System Requirements for details. 
l     Try scanning your original at a lower Resolution setting to speed up scanning. 
If you are scanning with the ADF, see Selecting the Scan Resolution. 
If you are scanning from the document table, Selecting the Scan Resolution for 
instructions.
 
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Home > Solving Problems 
Scan Quality Problems
The Edges of Your Document Are Not Scanned  
You See Only a Few Dots in Your Scanned Image  
A Line of Dots Always Appears in Your Scanned Images  
Straight Lines in Your Image Come Out Crooked  
Your Image is Distorted or Blurred  
Colors Are Patchy or Distorted at the Edges of Your Image  
Your Scanned Image is Too Dark  
An Image on the Back of Your Original Appears in Your Scanned Image  
Ripple Patterns Appear in Your Scanned Image  
Characters Are Not...

You See Only a Few Dots in Your Scanned Image
l     Make sure the document is placed on the scanner’s document table with\
 the side to be 
scanned facing down. See Placing Originals on the Document Table for details.
 
l     When scanning with the Black&White setting in Home or Professional Mode, change 
the Threshold setting. See Adjusting the Color and Other Image Settings for 
instructions.
 
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A Line of Dots Always Appears in Your Scanned Images
l     The document table may be dusty or...

l     Make sure the document lies flat on the document table. Also make sure y\
our 
document is not wrinkled or warped.
 
 
Caution:
Do not place heavy objects on the document table. 
l     Make sure you do not move the document or scanner while scanning. 
l     Make sure the scanner is placed on a flat, stable surface. 
l     Select Unsharp Mask Filter in EPSON Scan’s Office or Professional Mode window. 
If you are scanning with the ADF, see Adjusting the Color and Other Image Settings for...

l     Increase the Resolution setting. 
If you are scanning with the ADF, see Selecting the Scan Resolution for instructions. 
If you are scanning from the document table, see Selecting the Scan Resolution for 
instructions.
 
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Colors Are Patchy or Distorted at the Edges of Your Image
If your document is very thick or warped at the edges, cover the edges w\
ith paper to block 
external light as you scan.
 
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Your Scanned Image is Too Dark
l     Change the Display Gamma setting to match your...

If you are scanning with the ADF, see Adjusting the Color and Other Image Settings for 
instructions.
 
If you are scanning from the document table, see Adjusting the Color and Other Image 
Settings for instructions.
 
l     Try selecting the following settings in the Configuration window: Color Control, 
Continuous auto exposure , and Recommended Value on the Color tab. See 
EPSON Scan Help for details.
 
l     Check the Brightness setting in EPSON Scan. 
If you are scanning with the ADF, see Adjusting...

A ripple pattern (called moiré) may appear in a scanned image of a \
printed document. It is 
caused by interference from the differing pitches in the scanner’s sc\
reen and the halftone 
screen in your original.
 
Original image with  
ripple pattern
 
Descreening Filter applied 
  
l     Select the Descreening Filter check box in EPSON Scan. 
In Office or Professional Mode, also deselect the Unsharp Mask Filter setting. 
In Professional Mode, set the Screen Ruling of the Descreening Filter setting to...

 
Note:
You cannot remove moiré patterns when you are scanning monochrome ima\
ges or 
scanning using a resolution higher than 601 dpi.
 
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Characters Are Not Recognized Well When Converted into 
Editable Text (OCR)
l     Make sure the document lies perfectly straight on the document table. Al\
ign the vertical 
and horizontal lines with the scales at the top and side of the document\
 table.
 
l     In Office or Home Mode, select Black&White as the Image Type setting. Then try 
adjusting the...