Brother International DCP-L2550DW Online Users Guide HTML - Page 143
TWAIN Driver Settings (Windows), Contrast, Gray Error Diffusion, True Gray, 24bit, Color, Scan Type
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Home > Scan > Scan from Your Computer (Windows) > Scan Using Nuance™ PaperPort™ 14SE or Other Windows Applications > TWAIN Driver Settings (Windows) TWAIN Driver Settings (Windows) • Note that the item names and assignable values will vary depending on the machine. • The Contrast option is available only when selecting the Gray (Error Diffusion), True Gray, or 24bit Color options from the Scan Type settings. 1. Scan Select the Photo, Web, or Text option depending on the type of document you want to scan. Scan (Image Type) Resolution Scan Type Photo Use for scanning photo images. 300 x 300 dpi 24bit Color Web Use for attaching the scanned image to web pages. 100 x 100 dpi 24bit Color Text Use for scanning text documents. 200 x 200 dpi Black & White 2. Resolution Select a scanning resolution from the Resolution drop-down list. Higher resolutions take more memory and transfer time, but produce a finer scanned image. 3. Scan Type Select from a range of scan color depths. • Black & White Use for text or line art images. • Gray (Error Diffusion) Use for photographic images or graphics. (Error Diffusion is a method for creating simulated gray images without using true gray dots. Black dots are put in a specific pattern to give a gray appearance.) • True Gray Use for photographic images or graphics. This mode is more accurate because it uses up to 256 shades of gray. • 24bit Color Use to create an image with the most accurate color reproduction. This mode uses up to 16.8 million colors to scan the image, but it requires the most memory and has the longest transfer time. 136
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