Epson WorkForce Pro WP-4520 Uživatelská příručka stáhnout pdf (Strana 263)

Ripple Patterns Appear in an Image

You may see a ripple pattern (called a moiré) in scanned images of printed documents. This is caused

by interference from differing pitches in the scanner's screen and your original's halftone screen. To

reduce this effect, adjust these EPSON Scan settings (if available) and try scanning again:

• Select the Descreening setting.

• Select a lower Resolution setting.

Parent topic: Solving Scanned Image Quality Problems

Related topics

Selecting EPSON Scan Settings

Scanned Image Colors Do Not Match Original Colors

Printed colors can never exactly match the colors on your computer 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).

Check the color matching and color management capabilities of your computer, display adapter, and the

software you are using to see if they are affecting the palette of colors you see on your screen.

To adjust the colors in your scanned image, adjust these EPSON Scan settings (if available) and try

scanning again:

• Change the Image Type setting and experiment with different combinations of the next settings.

• Adjust the Tone Correction setting.

• Adjust the Auto Exposure setting.

Parent topic: Solving Scanned Image Quality Problems

Related topics

Selecting EPSON Scan Settings

Scan Area is Not Adjustable in Thumbnail Preview

If you cannot adjust the scan area while viewing a Thumbnail preview in EPSON Scan, try these

solutions:

• Create a scan area by drawing a marquee on your preview image and adjusting it as necessary.

• Switch to Normal preview mode, if available, and preview your image again.

Parent topic: Solving Scanned Image Quality Problems

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