pat from west palm beach wrote:
I just upgraded to MacOS Catalina. Now my HP 5590 Scanjet won't operate. I've tried through the HP EasyScan and the Printer/Scanner option in settings on my iMac with the same results.
The error message is (com.apple.imagecapture error 704.) What can I do to get the scanner working again. -- Pat
reference:
https://support.apple.com/guide/mac-help/solve-printing-problems-on-mac-mh14002/10.15/mac/10.15
you can also try reset print system if necessary:
If you still have an issue, delete the existing printer in
> System Preferences> Printers & Scanners, and add it again.
Connect an AirPrint printer to a Wi-Fi network - Apple Support.
https://support.apple.com/en-us/HT201900
If you are still at a loss: https://123.hp.com/us/en/
If you can't find an updated driver for your printer give the open-source, free Gutenprint driver a try.
http://gimp-print.sourceforge.net/MacOSX.php