topic PIXMA TR8520 suddenly not scanning in Desktop Inkjet Printers https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-TR8520-suddenly-not-scanning/m-p/363943#M53426 <P>My Pixma TR8520 suddenly stopped scanning. I get this message, "Failed to open a connection to the device (-21345)". The printer appears to work so it's not the WiFi. I'm using Mac OS Big Sur 11.6. Any ideas? Many thanks!</P> Thu, 24 Feb 2022 18:34:18 GMT shezu 2022-02-24T18:34:18Z PIXMA TR8520 suddenly not scanning https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-TR8520-suddenly-not-scanning/m-p/363943#M53426 <P>My Pixma TR8520 suddenly stopped scanning. I get this message, "Failed to open a connection to the device (-21345)". The printer appears to work so it's not the WiFi. I'm using Mac OS Big Sur 11.6. Any ideas? Many thanks!</P> Thu, 24 Feb 2022 18:34:18 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-TR8520-suddenly-not-scanning/m-p/363943#M53426 shezu 2022-02-24T18:34:18Z