Please help. The selection button for one or two-sided printing is not active. I can only print on one side- CanonMFCdn820, Mac OS 10.12.6.
It's making me crazy.
Please help. The selection button for one or two-sided printing is not active. I can only print on one side- CanonMFCdn820, Mac OS 10.12.6.
It's making me crazy.