Epson WorkForce GT-1500 User Manual - Page 137

Ripple Patterns Appear in Your Scanned Image

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If your original is printed on thin paper, images on the back may be visible to the scanner and appear in your scanned image. Try scanning the original with a piece of black paper placed on the back of it. Also make sure the Document Type and Image Type settings are correct for your original. See Scanning in Home Mode or Scanning in Professional Mode for instructions. Top Ripple Patterns Appear in Your Scanned Image A ripple or cross-hatch 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 screen and the halftone screen in your original. Original image Descreening applied Select the Descreening check box. In Professional Mode, select an appropriate Screen Ruling for the Descreening and deselect the Unsharp Mask setting. See Adjusting the Color and Other Image Settings for instructions. Select a lower resolution setting. See Selecting the Scan Resolution for instructions. Note: You cannot remove ripple patterns when you are scanning using a resolution higher than 600 dpi. Top Characters Are Not Recognized Well When Converted into Editable Text (OCR) Make sure the document lies perfectly straight on the document table. In Office Mode or Home Mode, select the Text Enhancement check box. Adjust the Threshold setting. Office Mode or Home Mode: Select Black&White as the Image Type setting. Then try adjusting the Threshold setting. See Converting Scanned Documents Into Editable Text for instructions. Professional Mode: Click the + (Windows) or (Mac OS X) button next to Image Type and make the appropriate Image Option setting. Then try adjusting the Threshold setting. See Converting Scanned Documents Into Editable Text for instructions. Check your OCR software manual to see if there are any settings you can adjust in your OCR software.

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If your original is printed on thin paper, images on the back may be visible to the scanner and appear in your scanned
image. Try scanning the original with a piece of black paper placed on the back of it. Also make sure the
Document
Type
and
Image Type
settings are correct for your original. See
Scanning in Home Mode
or
Scanning in Professional
Mode
for instructions.
Top
Ripple Patterns Appear in Your Scanned Image
A ripple or cross-hatch 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 screen and the halftone screen in your original.
Original image
Descreening applied
Select the
Descreening
check box. In Professional Mode, select an appropriate
Screen Ruling
for the
Descreening and deselect the
Unsharp Mask
setting. See
Adjusting the Color and Other Image Settings
for
instructions.
Select a lower resolution setting. See
Selecting the Scan Resolution
for instructions.
Note:
You cannot remove ripple patterns when you are scanning using a resolution higher than 600 dpi.
Top
Characters Are Not Recognized Well When Converted into Editable Text (OCR)
Make sure the document lies perfectly straight on the document table.
In Office Mode or Home Mode, select the
Text Enhancement
check box.
Adjust the
Threshold
setting.
Office Mode
or
Home Mode:
Select
Black&White
as the Image Type setting. Then try adjusting the
Threshold
setting. See
Converting Scanned Documents Into Editable Text
for instructions.
Professional Mode:
Click the
+
(Windows) or
(Mac OS X) button next to
Image Type
and make the
appropriate Image Option setting. Then try adjusting the
Threshold
setting. See
Converting Scanned
Documents Into Editable Text
for instructions.
Check your OCR software manual to see if there are any settings you can adjust in your OCR software.