06-19-2017 06:16 PM
The scanner is highly erratic for maintaining its USB connection directly to a high-end iMac. After being unused for a day, I have to power off the scanner, disconnect the USB cable and then power back on and then reconnect the USB cable. Usually this works, sometimes it does not. Connection problem is announced on the HP scanner, and when that occurs neither HP scan application nor Apple scanning from System Preferences\Printers and scanners works.