I FINALLY gave up on my ancient canon all in one and cracked open a box of printer that I bought 4 years ago at a great price assuming I'd be installing it soon.
Years later I am installing it... Instructions said to install drivers before plugging in - I downloaded the latest and installed them. Then I tried installing firmware updaters and none of them work. They all say 'try again' kinda error.
I've tried mac-lbp151-fw-v0411-64.dmg and mac-lbp151-fw-v0412-64.dmg
I've restarted the computer, the printer... I dunno... giving up for now, but thought that maybe someone else has been through this and might have advice...