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This mode enables you to scan original images with a sharper or softer contrast. To scan originals with text or lines with a sharper contrast, use [High] as the setting. To scan originals containing printed images or other halftones with a softer contrast, use [Low] as the setting.

• Low

If you scan an original containing halftones, such as a printed image, the moiré effect (a shimmering, wavy pattern) may occur. In this case, you can lessen this moiré effect by using [Low] as the setting to produce a clearer image.

• High

This setting enhances the edges of original images so that faint or fine text is scanned with a sharper contrast. This setting is particularly suited for scanning blueprints and faint pencil drawn images.

• To cancel this setting, press [Options] → [Sharpness] → [Cancel Settings].

1. Place your originals and specify the destination → press [Options].

2. Press [Sharpness].

3. Press [Low] or [High] to adjust the sharpness → press [OK].

To scan text or lines clearly, the setting should be towards [High]. To scan originals containing printed images or other halftones, the setting should be towards [Low].

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