Typically, there’s an area that lists networking or networking protocols, and you can choose IPv4 only. Some printers come with native software with advanced networking settings in which you can opt to disable IPv6. Again, why does this have anything to do with scanners Again, I address your question to the. (macOS also includes IPv6 settings, but the latest versions of macOS don’t offer an “off” switch for IPv6, and you don’t need IPv6 enabled on the local network for a printer to work.) Trying to use a scanner on your Mac and the Image Capture app doesn’t work Here’s a possible fix. HP LaserJet M1212nf MFP (printing & scanning both worked great until MacOS Catalina upgrade, which broke the scanner in Image Capture) SYMPTOMS BEFORE MacOS 10.15.3 UPDATE Apple Image Capture - Apples Image Capture software used to work before the Catalina upgrade, and it still performs a scan preview, but it fails to output the file. Yes, I know that’s very strange, even further away from the scanner issue, but it works for others and solved my problem. The most effective method that has the least likelihood to cause an impact on future networking is to disable IPv6 on printers on your local network. The solution unpicked by a handful of people independently over several years is that IPv6 being enabled can interfere with the scanner driver and Image Capture, for whatever reason, and unless you have a specific reason to need IPv6, you can typically disable it. Again, why does this have anything to do with scanners? Again, I address your question to the wind.
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