Brother International MFC 3100C Users Manual - English - Page 166

Settings in the Scanner Window Image Resolution Choose the scanning resolution from the Resolution pop-up menu. Higher resolutions take more memory and transfer time, but can achieve a finer scanned image. (Each model has different resolutions. See Specification.) Color Type Black & White-Set the image Type to Black&White for text or line art. For photographic images, set the image type to Gray (Error diffusion) or True Gray. Gray (Error Diffusion)-is used for documents that contain photographic images or graphics. (Error Diffusion is a method for creating simulated gray images by placing black dots in a specific matrix instead of true gray dots.) True Gray-also is used for documents containing photographic images or graphics. This mode is more exact because it uses up to 256 shades of gray. It requires the most memory and longest transfer time. Colors-Choose either 256 Color, which scans up to 256 colors, 24-bit color which scans up to 16.8 million colors. Although using 24-bit color creates an image with the most accurate colors, the image file will be approximately three times larger than a file created with 256 Color. 18 - 9 U S I N G T H E B R O T H E R M F C W I T H A N E W P O W E R M A C I N T O S H ® G 3 , G 4 O R I M A C ™ / I B O O K ™