My MX922 is Wifi set up with my older iMac OS 10.11.6. Canon IJ Scan Utility Version 1.1.1, Canon IJ Network Tool (Driver) Version 4.7.2. When I use the Canon IJ Scan Utility, it completes the scan and prompts me to "Exit" or continue to "Scan". Neither button works and I have to force quit the Utility, losing the scanned document. The Utility has worked well until now, for many years. For example, the "Exit" button after several minutes will eventually flash blue but does nothing. The dialogue window goes gray, and returns to normal view. Still no response. The Scan button will eventuallhy do the same.
I've done the usual simple fixes to quit and restart the Utility, shut down the computer, etc. Nothing works. I reinstalled the Driver and Network Tool so i believe they are both the most recent versions. Cannon Support refers me to their paid service or here. Can someone please help! Thank you in advance for taking the time to try. Rod