User manual AVISION AV25

[. . . ] * Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. CAUTION: Any changes or modifications not expressly approved by the manufacture of this device could void the user's authority to operate the equipment. iv Table of Contents CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 CHAPTER 2 SCANNER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2. 1 INSTALLATION OF THE SCANNER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] * Retain the scanner box and packing materials for shipping purposes. 2. 1 Installation of the Scanner Please unpack the packing carefully, and check the contents against the checklist. If any items are missing or damaged, please contact your dealer immediately. 2-1 2-2 Connecting the Cable Be sure the scanner is power off. Connect the power cable and signal cable as shown below. Figure 2-1 AV25 scanner cable connection 2-2 Document loading Load the documents one page at a time. And put the document to be scanned face down in the scanner. Figure 2-2 Put document in the scanner. 2-3 Chapter 3 Scanner Driver Installation Minimum Requirements: * IBM compatible PC 386/486 or Pentium; * Microsoft Windows 3. 1 or Windows 95; * DOS 5. 0 or higher; * One printer port available (enhanced parallel port recommended); * 2 megabytes of available hard disk space for installation; * 4 megabytes of RAM (8 megabytes or higher recommended); * A video graphics array (VGA) monitor; * A Microsoft Windows-compatible pointing device, e. g. , the mouse; * A CD ROM drive. 3-1 Auto-Installation Program Installation procedure of the scanner driver with Avision AutoInstallation Program is as follows: 1. From the File Menu, choose RUN, type d:\driver\av25\setup. exe, and then click O. K. 3-1 For Windows 95 3. Press the Start button, choose RUN, type d:\driver\av25\setup. exe, and then click O. K. Follow the instructions on the screen to complete the installation (usually just clicking O. K. 3. 2 3-2 3-2 Uninstall the Scanner You can uninstall the scanner by double-clicking on the Uninstall icon stored in the AV25 Driver group. . . . 3-3 Chapter 4 Scanner Operation There are two types of application software interface to use with the AV25 scanner. TWAIN is the most popular interface among image-editing application software, while ISIS is most popular among archiving application software (OCR). If the Select Source menu options are not available from the File menu, see the user guide of your application to learn how the TWAIN link is used. A dialog box appears containing the different TWAIN sources you can choose for bringing an image into your application. You need to select AV25 for just once except when you have used the dialog box to select a different source. In that case, you will need to select AV25 as the source again before you can reuse the scanner. Do calibration: Place a sheet of A4-size white paper in the scanner and press the Calibration button to calibrate "whiteness" for the scanner. 4-1 6. Click on the Prescan or Scan button to get the image. Avision TWAIN user interface: 4-2 4-1 Image Type As shown below, you can select the mode you want to use with your document or image. Just click on the corresponding button. Line art Error Diffusion Halftone Gray Scale Line art Line art includes only black and white areas. Error Diffusion While taking up but a minimum storage space, error diffusion gives good image texture and excellent image details. Halftone Halftone simulates different shades of gray by varying the threshold value of a matrix. Gray (256 levels gray scale) Scanner recognizes each point in the image as a shade of gray (continuous tone). 8-bit gray gives more detailed information about the image. 4-3 4-2 Scanning Parameters & Image Control Resolution Control Brightness Adjustment Contrast Adjustment Resolution: The number of dpi (dots per inch) that AV25 uses for a scan. Brightness: Adjusts the lightness or darkness of an image. Contrast: Adjusts the range between the darkest and the lightest shades in the image. The higher the contrast, the bigger the different gray scales. 4-4 Auto Level Auto Area Descreen Reset Invert Calibration Quality Mode Speed Mode Pixel/Inch/Cm Set Gamma Image Information Auto Level: Optimizes the scanned image. Auto Area: Descreen: Automatically sets the whole document as the scan area, no matter what its size. [. . . ] 20, Creation Road I, ScienceBased Industrial Park, Hsinchu, Taiwan, R. O. C. Telephone number: 886-3-5782388 Fax number: 886-3-5777017 BBS: 886-3-5786149 CompuServe: 101400, 444 Email: service@avision. com. tw 5-5 Note: 1. You will be asked to enter your first name, last name and password at all times. For first-time user, you will be requested of your full name and password. [. . . ]