This is not an answer but after updating to BIG SUR OS 11.2.3 two days ago my printer Canon Pixma PM280 disappeared and in the preference I cannot add it or see it in the find . In canon site the canon PM280 driver is not compatible to any Mac OS above 10.5. So we need new driver from canon to run under OS 10.5 -11.2.3. This is an old problem with Apple updates.
jhashemi
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