How to Install Mustek Scanexpress A3 USB Update Driver

Written by melissa king
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How to Install Mustek Scanexpress A3 USB Update Driver
(Hemera Technologies/ Images)

Mustek's ScanExpress A3 USB is a scanner designed for business or home office use. Its large scanning bed allows for more documents to be scanned at once, without sacrificing image quality. Mustek offers three models of the ScanExpress A3 USB: the 600 Pro, 1200 Pro and 2400 Pro. On occasion, it may be necessary to download new drivers for the scanner. Drivers must also be installed when setting up the scanner for the first time. The latest drivers are available from the Mustek website.

Skill level:


  1. 1

    Go to, and click on "Support." Use the drop-down menus to select "Scanner," then "USB port." Choose your ScanExpress A3 model from the list, and the latest drivers are displayed.

  2. 2

    Unplug the scanner from your computer, and disable any firewall or antivirus protection.

  3. 3

    Click the "Download" link for either a Windows or Mac computer. Click "Save" and save the download file to the desktop. Double click on "Setup.exe" to begin the installation process. Click through the following screens until you are notified that the process is complete.

  4. 4

    Reboot the computer when asked to do so. Reconnect the scanner to the computer.

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