Why the scanner is running with a prompt TWAIN.DLL error

Q: Hello, my Tsinghua Violet 6 C and AI-fat scanners are not working properly under Windows XP, the driver is properly installed, and the machine is restarted as prompted. However, the scanner and Camera option in Control Panel is empty and no newly installed scanners are found. Oddly, the MiraScan v3.42 device can be invoked in Photoshop, except when it is scanned: Software calls TWAIN.DLL file errors. Why is that? Isn't Windows XP already incompatible with the port scanner?

A: In fact, your driver has been installed successfully, only Windows XP appears to "discriminate" with the scanner, you must open the Scanners and Cameras option in Control Panel, double-click Add Device, the system will run the Device Add Wizard, select the Scanner or Digital Camera dialog box, and then in the manufacturer "Eppscaner" is selected for installation (because the scanner's interface is the EPP interface). After the device is added, you can find the name of the scanner in the scanner and camera. When you call the scanner again in software such as Photoshop, there should be no error.