User manual VISIONEER 8800 INSTALLATION GUIDE

[. . . ] Visioneer® OneTouch® 8800 Scanner FOR USB CONNECTION Installation Guide COPYRIGHT INFORMATION Copyright © 2000 Visioneer, Inc. , a wholly owned subsidiary of Primax Electronics LTD. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The Visioneer brand name and logo are registered trademarks of Primax Electronics LTD. The PaperPort brand name and logo are registered trademarks of ScanSoft, Inc. [. . . ] The default Gamma setting works fine in most cases and normally does not need to be adjusted. If a JPEG tab is available, click it to select image compression settings. Please see "About JPEG Compression" on page 26 for information about the JPEG settings. Enable hardware compression (JPEG) --Click to make the JPEG compression options active. Minimize Image Size (Maximum compression)--Select this option to produce the smallest file size for the image; image quality is lowest. Best Image Quality--Select this option to produce the best quality image; file size is larger. Custom Quality Factor--Set your own choice for file size and image quality. Enter a number in the Quality Factor box or drag the slider to set the Quality Factor. Low means lower image quality but smaller file size. CONFIGURING THE SCANNER 26 Restore Defaults--Click to return the slider and Custom Quality Factor to their original settings 7. The new configuration and its adjusted settings now apply to the button whose tab is selected at the top of the Configuration dialog box. Note: If you select the Copy/Print or Fax button, the dialog box for editing and adjusting the settings will have a Device tab for selecting options for a printer or copier. See the Help for more information. ABOUT JPEG COMPRESSION Scanned graphics, photos, and other images can sometimes produce large files. The JPEG options for scanning reduce the file size by compressing the image electronically. Therefore, compressing an image involves a trade-off between image quality and file size. In many cases, loss of quality due to compression is not readily apparent, but the amount of compression you select--if any--depends on the quality you want. The JPEG compression options only apply to: s Destination applications used for graphics, photos, and artwork images. Word processing applications, fax applications, and other text-based destination applications do not use JPEG compression. JPEG compression does not apply to the Black/White scan mode. s Note: You can add JPEG compression to the existing preset configurations if the destination application is for graphics, photos, or other artwork images. 27 VISIONEER ONETOUCH 8800 SCANNER INSTALLATION GUIDE SETTING PREFERENCES The preferences apply to each button and to the scanner. On the Configuration dialog box, select the tab for a button to set its preferences. Click the Preferences tab on the Configuration dialog box. Preferences tab The Preferences dialog box appears. The dialog box shows which button you selected for new preferences. The name of the button to receive new preferences If the Button tab on the Preferences dialog box is not selected, click it. Show All Destinations--Clicking this option automatically selects all the destination applications categories. When you click the button's tab on the Configuration dialog box, its list of destination applications include all of the applications on your computer that CONFIGURING THE SCANNER 28 fall into these categories. [. . . ] To maintain the selected area's length-to-width relationship (known as the aspect ratio), click Maintain Aspect. Note that as you rotate the area or maintain its aspect ratio, the width and height measurements change to reflect the new orientation of the image. If you want to remove the selected area and start over, click Remove on the Scan Info box. ADJUSTING THE SETTINGS ON THE SCAN MANAGER 48 SAVING A CUSTOM SIZE If you have several items of the same size, such as a group of small photographs, you can create a custom size and reuse it whenever scanning those items. Select it in the list to automatically reuse the custom size. 49 VISIONEER ONETOUCH 8800 SCANNER INSTALLATION GUIDE THE SCAN INFO BOX The following figure shows the information on the Scan Info box: Physical size of the image to scan. [. . . ]