Connecting to HP ScanJet 4500 FN 1 on Windows 10

I recently posted a question on the HP community support forum ( see this ), but past experience suggests I might get a better response here :-). In short, I bought a new HP ScanJet Pro fn 1 a couple of years ago but I could only ever get it working via USB, and I'm now trying (unsuccessfully) to get it working as a network scanner with a brand new Windows 10 laptop. I've installed all of the latest HP software (v41.1.2220) and flashed the firmware on the scanner to the latest version (v7.128), and I can successfully ping the scanner by IP and hostname, and I can also browse the scanner's web-

Question by mclayton on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.