Draft Mode Printing

Return the printer to the vendor for a refund.

AirPrint gathers the available settings from the printer.

If there’s no draft quality listed under the paper type and quality in the detailed printer settings, check with Canon.

That’s where the available settings are retrieved by AirPrint; directly from the printer.

Print documents from your Mac - Apple Support

Some vendors offer draft settings: https://discussions.apple.com/thread/3008555?answerId=15032430022#15032430022

Based on previous rummaging, Canon doesn’t transmit this to macOS:

https://community.usa.canon.com/t5/Printer-Multifunction-Support/Pixma-TR8520-won-t-print-draft-with-Mojave-Apple-and-Canon-can-t/m-p/264726/highlight/true#M30159

Apple isn’t in the printer driver business.

Hasn’t been for a while, too.

Not since the days of the Apple ImageWriter and the Apple LaserWriter printers.

Check with whoever provided the printer and its driver; with the vendor of your printer.

If you’d like us to look at this, which printer vendor, and which specific model?