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TWAIN Driver Settings (Windows)
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- Note that the item names and assignable values will vary depending on the machine.
- The Contrast option is available only when selecting the Grey (Error Diffusion), True Grey, or 24bit Colour options from the Color Setting drop-down list.
- Scan
- Select the Photo, Web, or Text option depending on the type of document you want to scan.
Scan (Image Type) Resolution Colour Setting Photo Use for scanning photo images. 300 x 300 dpi 24bit Colour Web Use for attaching scanned images to web pages. 100 x 100 dpi 24bit Colour Text Use for scanning text documents. 200 x 200 dpi Black & White
- Resolution
- Select a scanning resolution from the Resolution drop-down list. Higher resolutions take more memory and a longer transfer time, but produce a higher quality scanned image.
- Color Setting
- Select from a range of scan colour depths.
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- Black & White
- Use for text or line art images.
- Grey (Error Diffusion)
- Use for photographic images or graphics. (Error Diffusion is a method for creating simulated grey images without using true grey dots. Black dots are arranged in a specific pattern to give a grey appearance.)
- True Grey
- Use for photographic images or graphics. This mode is more accurate because it uses up to 256 shades of grey.
- 24bit Colour
- Use to create an image with the most accurate colour reproduction. This mode uses up to 16.8 million colours to scan the image, but it requires the most memory and has the longest transfer time.
- Document Size
- Select the exact size of your document from a selection of preset scan sizes.
If you select Custom, the Custom Document Size dialog box appears and you can specify the document size.
- Brightness
- Set the brightness level by dragging the slider to the right or left to lighten or darken the image. If the scanned image is too light, set a lower brightness level and scan the document again. If the image is too dark, set a higher brightness level and scan the document again. You can also type a value in the field to set the brightness level.
- Contrast
- Increase or decrease the contrast level by moving the slider to the right or left. An increase emphasises dark and light areas of the image, while a decrease reveals more details in grey areas. You can also type a value in the field to set the contrast level.
- Advanced Settings
- Configure advanced settings by clicking the Advanced Settings link in the Scan Settings dialog box.
- Document Correction
- Rotate Image
Rotate the scanned image.
- Fill With Color
Fill in the edges on four sides of the scanned image using the selected colour and range.
- Image Quality
- Background Processing
- Remove Bleed-through / Pattern
Prevent bleed-through.
- Remove Background Colour
Remove the base colour of documents to make the scanned data more legible.
- Colour Drop
Select a colour to remove from the scanned image.
- Edge Emphasis
Make the characters of the original sharper.
- Reduce Noise
Improve the quality of your scanned images with this selection. The Reduce Noise option is available when selecting the 24bit Colour option and the 300 x 300 dpi, 400 x 400 dpi, or 600 x 600 dpi scan resolution.
- B&W Image Quality
- Character Correction
- Blurred Character Correction
Correct the broken or incomplete characters of the original to make them easier to read.
- Boldface Formatting
Emphasise the characters of the original by making them bold.
- B&W Inversion
Invert black and white in the monochrome image.
- Feed Control
- Continuous Scan
Select this option to scan multiple pages. After a page is scanned, select whether to continue scanning or finish.