having trouble setting up a cannon mx492 on my mac. Please help.

Hi,

You will find drivers for macOS High Sierra 10.13 and some other operating system versions via the link (https://www.usa.canon.com/internet/portal/us/home/support/details/printers/inkjet-multifunction/mx-series-inkjet/mx492/pixma-mx492?tab=drivers_downloads) that BDAqua provided.

How is the printer connected (USB or network)?

If necessary, you may want to try resetting the printing system and re-adding the printer.

Reset the Mac printing system to solve a problem - Apple Support

Add a printer on Mac - Apple Support

The Canon MX492 is mentioned in About AirPrint - Apple Support as a model supporting the driverless AirPrint technology. This means that the printer will work without drivers (if used with a network). AirPrint information can also be found in a guide (https://www.canon.co.uk/support/consumer_products/apple_airprint_guide/) from Canon UK for similar PIXMA models.

Hmmm...

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We apologize, the web site is having a problem displaying information for your request. Please email us at driverissue@cusa.canon.com. We look forward to assisting you!

https://www.usa.canon.com/internet/portal/us/home/support/details/printers/inkjet-multifunction/mx-series-inkjet/mx492/pixma-mx492?tab=drivers_downloads