If a scanned image on your computer screen has a quality problem, check the solutions in this section.If the image looks correct on screen but prints with poor quality, check for print quality problems.
• Make sure the document is placed on the scanner glass with the side to be scanned facing down.
• When scanning with the Black & White setting in Home, Professional, or Office Mode, adjust the Threshold setting.If a dotted line appears in the image, clean the scanner glass with a soft, dry, lint-free cloth (paper towels are not recommended), or use a small amount of glass cleaner on a soft cloth, if necessary. Don’t spray glass cleaner directly on the glass.
• Make sure the document lies flat on the scanner glass. Also make sure your document is not wrinkled or warped.
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• If your document is very thick or warped at the edges, cover the edges with paper to block external light as you scan.
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• Check the Brightness setting in Epson Scan’s Home, Office, or Professional Mode, or adjust brightness using the Histogram in Professional Mode (see Epson Scan Help).If your original is printed on thin paper, images on the back may show through the paper and appear in your scanned image. Try scanning the original with a piece of black paper placed on the back of it.A rippled pattern (called a 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. To reduce this effect:
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• In Home or Professional Mode, your product automatically detects the top of certain photos by analyzing the preview for human faces, the sky, or other orientation factors using Auto Photo Orientation. It then places the photos in the correct orientation in the scanned file. If your particular photo is not oriented correctly, you can turn off Auto Photo Orientation and try again.Click the Configuration button, click the Preview tab, and click the Auto Photo Orientation checkbox to turn it off.
• Change the Image Type setting in Epson Scan’s Home, Office, or Professional Mode. Select different combinations of this setting and the others mentioned below.
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• Check the color matching and color management capabilities of your computer, display adapter, and software. Some computers can change the palette of colors on your screen. See your software and hardware manuals for details.Printed colors can never exactly match the colors on your monitor because printers and monitors use different color systems: monitors use RGB (red, green, and blue) and printers typically use CMYK (cyan, magenta, yellow, and black).
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• Switch to the Normal preview (if available) in Home or Professional Mode and preview your image again.Make sure your original is positioned in the front right corner of the glass. Move your original away from the edges slightly.