I thought my Canon imageClass LBP6000 printer, which was discontinued a while ago, was toast for lack of a Mojave compatible driver, but I was at Canon's site last night and, on a lark, I took a look, and lo and behold, they actually released an updated driver, albeit a bit belatedly, on January 19th.

I guess that's a heads-up for other Canon users who think their devices are similarly toasted.