Brother International IntelliFax-2840 Software Users Manual - English - Page 43

Scanning (For FAX-2940) Resolution 3 You can choose a scanning resolution from the Resolution drop-down list. Higher resolutions take more memory and transfer time, but produce a finer scanned image. The following table shows the resolutions you can choose. Resolution Black & White/ Gray (Error 3 Diffusion)/True Gray 100 x 100 dpi Yes 150 x 150 dpi Yes 200 x 200 dpi Yes 300 x 300 dpi Yes 400 x 400 dpi Yes 600 x 600 dpi Yes 1200 x 1200 dpi Yes 2400 x 2400 dpi Yes 4800 x 4800 dpi Yes 9600 x 9600 dpi Yes 19200 x 19200 dpi Yes Scan Type 3  Black & White Use for text or line art.  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 exact due to using up to 256 shades of gray. Brightness 3 Adjust the setting (-50 to 50) to get the best image. The default value is 0, representing an average. You can set the Brightness level by dragging the slide bar to the right or left to lighten or darken the image. You can also enter a value in the box to set the level. 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. Contrast 3 You can increase or decrease the Contrast level by moving the slide bar to the left or right. An increase emphasizes dark and light areas of the image, while a decrease reveals more detail in gray areas. You can also enter a value in the box to set the Contrast. 38