"Import from Scanner" greyed out in Preview app
You can try below steps:


In System Preference > Printers &amp; Scanners, press Control and click the printer and click Reset Printing System.  This will remove all your printers.
Go to Utilities and open Disk Utility.  Click Macintosh HD in the left panel and then click Repair Disc Permissions in the right panel.
Restart your computer.
Re-install your printer.