Canon imageCLASS LBP6230dw
The Canon webpage is detecting OS as Catalina v10.15, while the actual OS is Big Sur 11.1.
The driver Mac-UFRIILT-CARPS2LBP-v157-00.dmg is supposed to support OS 11 as evidenced by this string:
[Mac] UFRII LT Printer Driver Ver.1.5.7 (Mac OS : 10.10/10.11/10.12/10.13/10.14/10.15/11.0)
The first time I tried to install this driver, I was asked to install Rosetta, and I did that.
But when I try to run the Canon driver installer downloaded from Canon USA webpage, I get a message saying this driver is not compatible.
Thanks much for your help!