This is the interface introduced by Microsoft from Windows Millennium ( WIA stands for Windows Image Acquisition). Here you can only try to uninstall the manufacturer's Twain driver and reinstall a new driver or the old driver. If this does not work, the device's TWAIN driver may no longer be compatible with the existing Windows version. can be used to address the scanner directly and to continue using the image data of the scan. Then application programs such as PhotoFiltre etc. This must be supplied with the device in a version compatible with the Windows version or may be downloaded and installed at a later date from the manufacturer's website.
The data source is formed by the scanner or digital camera driver. TWAIN 2.4, released December 15, 2015, consists of three elements: The data source, the application program and the source manager. TWAIN is is a standard established in 1992 by Aldus Corporation, Eastman-Kodak, Hewlett-Packard and Logitech for exchanging data between image input devices (scanners, digital cameras, etc.) and applications for Microsoft Windows and Apple Macintosh. With modern scanners connected to a computer via USB, the scanner is controlled from applications using two standards: Twain and WIA. Within the text below I will try to explain the various approaches to control scanners and point out the associated problems.
