HP scanner driver for Catalina
New HP ScanJet 3500 f1 has USB connect errors (iMac 2017 Catalina). Unplugging USB and plugging back in usually results in connection. HP Easy Scan sees my HP ScanJet 3000 s2, but fails in connection. Vuescan does not work properly with the 3500, noting there may be driver problems. HP tells me that Apple wrote their own drivers for HP.
HP support tells me that this new scanner has old firmware (!), but there is no Mac firmware installer. There is only a Windows installer, that "should run" on my Mac. That's a great way to trash my iMac.
Any suggestions? Thank you!!!