Change scan resolution for Canon TS 9100

I have a Canon TS 9100 printer/scanner. I use scangearmp2 for the scanning.

I would like to be able to change the scan resolution.

I could not find a way using the panel on the printer.

https://support.usa.canon.com/library/ij/Manual/All/TS9100%20series/EN/UG/ug_s_03_07.html

And scangear has no option to change the resolution.

Is there a way to change the scan resolution?