VueScan works with the Lexmark X340 on Windows and Mac OS X.

You need to install a Lexmark WIA scanner driver to use this scanner on Windows.

You need to install a Lexmark Image Capture scanner driver to use this scanner on Mac OS X.

If you have an iPad, iPhone, Android phone/tablet or Kindle Fire, you can use VueScan Mobile with WiFi scanners or the built-in camera to scan documents.