Windows Fax and Scan as well as other functions of the operating system or application programs can use WIA to initiate a scan. 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.

Run Epson Scan and test the scanner.Within the text below I will try to explain the various approaches to control scanners and point out the associated problems.

Note that the Perfection 1200 will still be shown under Devices & Printers

The Perfection 2400 will now be shown in Device Manager.

Ignore the 'Update Driver warning - choose 'Yes' to continue to install.

Click on 'Epson' in the Manufacturer box, and the scroll down through model until you find 'Epson Perfection 2400', and choose that, and press Next.

Choose 'Let me pick from a list of device drivers on my computer'.

Choose 'Browse my computer for driver software'.

The Perfection 1200U will be shown under under Other Devices.Download and install the Perfection 2400U drivers from Epson USA, version 3.04A.The built in Windows scan program also works. The Epson Scan program is fully functional for normal reflective scans and film scanning (if you have the attachment). I discovered you can use the Epson 64 bit drivers for the Perfection 2400 and they work fine with the Perfection 1200. One challenge has been to see if I could get my old 1999 Epson Perfection 1200 scanner working in Windows 10 since Epson do not provide any 64 bit drivers. I've been experimenting with Windows 10 using a VM (VirtualBox) before upgrading.

Wia driver for epson scanner windows 10