User manual AVISION AV220C2

[. . . ] Sheet-fed Duplex Scanner User's Manual Regulatory model: 300500003 Avision Inc. Trademarks Microsoft is a U. S. registered trademark of Microsoft Corporation. Windows and MS-DOS are trademarks of Microsoft Corporation. IBM, PC, AT, XT are registered trademarks of International Business Machines Corp. [. . . ] Reverse mode is White on a Black background. For color images, each pixel will be changed into its complementary color at the command of Invert. Black on White White on Black 4-11 Scan Source Choice: Auto Document Feeder: Used to scan multiple pages. For example, pages from newspaper clipping, paper with wrinkles or curls. Flatbed (book): Used to scan several inside pages from book. Automatic: Allow the scanner automatically set its scan source. If Automatic is selected and there is document in both the auto document feeder (ADF) and the flatbed, then the scan source will be automatically set to ADF. If Automatic is selected and there is document only in flatbed, then the scan source will be set to flatbed. Note the options vary based on type of scanner. 4. 2. 3 Scanning color images The following options are available for scanning color images. Brightness Contrast Resolution Invert 4. 2. 4 Scanning grayscale images The following options are available for scanning gray images. Brightness Contrast Resolution Invert 4-12 User's Manual 4. 2. 5 Scanning B&W images The following options are available for scanning B&W images. Binarization (Dynamic Threshold) Resolution Invert Or Binarization (Fix Processing) Threshold Brightness Resolution Invert 4-13 4. 3 The Compression Tab The Compression tab allows you to compress your scanned image and choose the level of compression. Bi-tonal images are normally compressed using CCITT standard called Group 4 (G4). Color and grayscale images are often compressed using JPEG technology. Move the JPEG Quality slider to the right or left to increase or decrease the level of compression. Note the greater the compression level, the lower image quality. Note that the compression depends on your image editing application. If your image editing application does not support the type of compression format, then either a warning message will appear or the image quality of the compressed file will not be acceptable. This group developed and lent their name to a file compression standard for color and grayscale images that is widely used by scanners, and software applications. On Microsoft Windows-based systems, a file with the extension . jpg has normally been compressed using this standard. For scanning color or gray images, the following compressions are available: None JPEG For scanning B&W images, the following compressions are available: None G4 4-14 User's Manual The Compression tab dialog box 4-15 4. 4 The Color Dropout Tab 4. 4. 1 Color Dropout Selection Color Dropout tab allows you to drop either of the red, blue, or green color in your scanned image. If your image contains red color watermark or background, choose the R (Red) channel then any red watermark or background will be removed. This feature is used to sharpen your text when using OCR (Optical Character Recognition) software. [. . . ] Troubleshooting 7. 1 Clearing a Paper Jam In the event of a paper jam, follow the procedures below to remove the paper: 1. Press the ADF Release Button on the left side. Gently open the Scanner Front Door to the left. Carefully pull the paper out of the ADF unit. [. . . ]