BIG SIR Printer prints blank pages.

Thanks for the information.

A Canon MF227dw is mentioned in About AirPrint - Apple Support as a printer supporting the driverless AirPrint technology. Is this your printer?

AirPrint means that it can be used without a separate driver. Drivers/software from the printer manufacturer may or may not add functionality.

How is the printer connected (Wi-Fi, Ethernet, or USB)? What other devices are used, and how are those connected?

If applicable, is the printer connected to the same network (Wi-Fi router) as the computer and all other computers/devices?

Has the printer been added as an AirPrint printer, or are you using drivers from Canon? If the latter, please note that there are relatively new downloads.

https://www.usa.canon.com/internet/portal/us/home/support/details/printers/black-and-white-laser/mf227dw

Also, check that you have the latest firmware.

https://www.usa.canon.com/internet/portal/us/home/support/details/printers/black-and-white-laser/mf227dw?subtab=downloads-firmware

If necessary, try to reset the printing system and re-add the printer.

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

Add a printer on Mac - Apple Support

Hi,

It would help if you could provide information about the printer make and exact model.