If successful, you will now have basic scanning functionality using Windows Fax and Scan or the "Windows Scan" app from the Microsoft Store. However, you will lose advanced features like button controls (copy, scan-to-email) and HP’s precision photo correction software.
The device identifies as VID_03F0 PID_1205 . Under XP, the driver sends a proprietary initialization sequence (0x5A, 0xA5) to enable scanning mode. Windows 10’s generic USB scanner driver ( usbscan.sys ) does not send this sequence, leaving the scanner in standby. hp scanjet 2400 driver windows 10
If the driver installer fails, VueScan is the most reliable alternative. It includes for the Scanjet 2400. No need to install any HP software. If successful, you will now have basic scanning
If you cannot pay for VueScan but the HP drivers won't install, try these free alternatives: Under XP, the driver sends a proprietary initialization