UMAX 2200 用户指南

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Windows 98/95 OSR2 Problems and Solutions
 
 
Problem: 
 
Your computer does not recognize your USB scanner. 
 
USB support must be installed and enabled or the scanner will not work.  Different USB chipsets have 
different levels of USB compliance.  The initial USB chipset that was released was the INTEL82371SB.  It 
supports most low draw devices such as mice and joysticks, but high draw devices such as scanners might 
have trouble functioning on the “SB” chipset. 
 
Later chipset versions include SIS, ALI, and both have fully functional chipsets as well as Intel’s 82371AB 
and 82371AB/EB. 
 
Solution: 
 
It is important that you connect the scanner’s power and USB cables in the following order: 
 
1.  Plug the power adapter cord into the scanner and into an outlet.  The scanner’s power will then be ON. 
 
2.  Connect the USB cable to the USB port on the back of the computer. 
 
NOTE:  If you unplug the scanner’s power to turn it off, you must also disconnect the USB cable from the 
computer.  To resume use of the scanner, reconnect the power cord, and then the USB cable. 
 
To use your Astra 2200 scanner, it is important that your computer is set up to correctly support a USB 
device.  You must have the following: 
 
•  Windows 95 OSR2, revision B or later 
 
To check your system: 
 
1.  Right click on you’re My Computer icon. 
 
2. Select 
Properties
 
3. Select 
the 
General tab. 
 
4.  You should see a Windows version number of 4.00.950B or 4.00.950C. 
 
5.  If you have a different version, contact your reseller or Microsoft for an upgrade. 
 
•  Windows USB Supplement installed 
 
To check your system: 
 
1. Click 
Start on the Windows taskbar. 
 
2. Click 
Settings
 
3. Click 
Control Panel
 
4.  Double click the Add/Remove Software icon. 
 
5.  You should see a listing for “USB Supplement/OSR2.” 
 
 
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