Manually change the operating system filter on the HP driver page to "Windows 7" or "Windows XP". This will often reveal the original application download files. 2. Utilizing the Original CD-ROM

Proceed through the on-screen instructions. When prompted, select the Typical installation to ensure all scan and OCR components are loaded.

prints perfectly via plug-and-play on modern Windows, the scanner and OCR functions fail to respond because SmarThru 4 struggles to communicate with modern OS kernels.