Plustek 820 manual Appendix a Troubleshooting, Scanning Problems, Symptom Scanner scans very slow

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Appendix A: Troubleshooting

Scanning Problems

Most problems are easily solved, and some of the most common questions and their recommended solutions are listed below.

Symptom: After following the installation instructions, my computer cannot find the scanner.

Cause 1: Your software may have not been successfully installed.

Solution 1: Please insert the CD-ROM and reinstall the scanner software. Follow the on-screen instructions carefully when installing the software.

Cause 2:

Some aspect of your computer system does not support USB.

 

Solution 2:

Download

and

execute

the

file

USBREADY.EXE

at

 

http://www.usb.org/faq.html to determine the level of your computer’s

 

USB support.

 

 

 

 

 

 

Cause 3:

USB is not enabled in your BIOS settings.

 

 

 

Solution 3:

Enable the USB controller in your BIOS settings. This is typically done

 

by pressing a key4 (usually <del>, <F1> or <F10>) during startup. In the

 

BIOS Settings screen that appears, find the option for USB and enable

 

it. Exit and Save the changes you made. Your computer is rebooted

 

automatically. Please consult your computer vendor before attempting

 

to do this change.

 

 

 

 

 

Cause 4:

The USB controller was improperly installed on your computer.

 

Solution 4:

To reinstall the USB controller, click on the Start button, choose Settings

 

and select Control Panel. In the window that opens, double-click on the

 

Add New Hardware icon. Carefully follow the instructions that appear on

 

your screen.

 

 

 

 

 

 

Symptom:

The scanned image looks grainy on the screen.

 

Cause:

Your video mode is not set to show more than 256 colors.

 

Solution:

We recommend that you set your video mode to 16 bits per pixel (65536

 

colors) or higher. Please consult your video card, computer or Windows

 

documentation to change the video mode.

 

 

Symptom:

The scanner scans very slow.

 

 

 

 

Cause 1:

You are running other applications in the background.

 

Solution1:

Close all the other applications that are running in the background.

 

4Please consult your computer manual on how to modify your BIOS/CMOS settings.

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Contents Installation Usage & Maintenance Troubleshooting Page Table of Contents How to Use This Guide IntroductionConventions of This Guide System Requirements1Box Contents2 Scanner’s FeaturesProduct Information Chapter I. Installing the Scanner Software Installation RequirementsHardware Requirements Installing and Setting up the Scanner Connecting the Scanner to Your ComputerInstalling the Software For Windows 98 For Windows XP & MeTesting the Scanner Software Setup Troubleshooting Installing Additional SoftwareScanner Setup After Windows XP Upgrade Page Chapter Usage and Maintenance Operating the ScannerUsing the Scanner Buttons Scan ButtonScan Button BCR Button Single scan by different settings BCR Button Continuous scans by the same settings Status Indicator Changing Button SettingsLight Status Scanner Connection Appearance StatusMaintenance Calibrating the ScannerUsage & Maintenance Tips Cleaning the ScannerPage Appendix a Troubleshooting Scanning ProblemsSymptom Scanned image looks grainy on the screen Symptom Scanner scans very slowSymptom Unable to save to a floppy diskette Symptom Disk I/O error- message is displayed Symptom Error Scanner not Found that is displayedSymptom How do I save the scanned image in JPG format? Common -How-to- QuestionsHow to import images Appendix B Specifications5 Plustek OptiCardAppendix C Customer Service and Warranty Statement of Limited WarrantyFCC Radio Frequency Statement Page Contacting Plustek Europe
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