Brother International MFC-J815DW XL Online Users Guide HTML - Page 194
TWAIN Driver Settings (Mac), Related Models, Contrast, Gray Error Diffusion, True Gray, 24bit, Color
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Home > Scan > Scan from Your Computer (Mac) > Scan Using TWAIN-Compliant Applications (Mac) > TWAIN Driver Settings (Mac) TWAIN Driver Settings (Mac) Related Models: MFC-J995DW 1 2 3 4 5 • Item names and assignable values will vary depending on the machine. • The Contrast setting is available only when selecting Gray (Error Diffusion), True Gray, or 24bit Color from the Scan Type options. 1. Resolution Select a scanning resolution from the Resolution pop-up menu. Higher resolutions take more memory and transfer time, but produce a finer scanned image. 2. 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. 3. Document Size Select the exact size of your document from a selection of preset scan sizes. • If you select Custom, you can specify the document size. 187
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