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Could you tell us which Canon printer model you have?
Older printers (and Canon is not alone with this) may no longer be supported.
 
The latest Canon Printer Drivers are here:

https://support.apple.com/kb/DL1928?viewlocale=en_US&locale=en_US

Click on the "supported printer models" to see if your printer is supported. If yes, download it, and you should be golden. If no, maybe you should think of a printer replacement.

Lou
The latest Canon Printer Drivers are here:

https://support.apple.com/kb/DL1928?viewlocale=en_US&locale=en_US

Click on the "supported printer models" to see if your printer is supported. If yes, download it, and you should be golden. If no, maybe you should think of a printer replacement.

Lou
[doublepost=1511900420][/doublepost]I have 2 Cannon printers MP 560 and a TS 6020, I did update the firmware on both at Cannon. They will not print email messages for my Wife's golf tee times , they did in Sierra. I tried on my Mac Book Pro for about 10 hours, I deleted all printers and re added, did resets, all with new firmware, no glory. Will try the Mac mini next even though it did not work. My mini slate 2014. I have been using minis' since 1.83. Thanks Tom
 
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