I have an MF 743 that would print wirelessly with no problem other than always having to manually select paper tray. now it will print test page wirelessly but nothing else. I was going to attempt to reinstall/update drivers but I see that is currently not an option as the Canon site is down.
While the Canon U.S.A. website is undergoing maintenance, compatible drivers may be downloaded from the Canon Canada website: https://canoncanada.custhelp.com/app
If the problem persists after reinstalling, double-check that the print settings on the computer match the settings on the printer itself.
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