Since upgrading to High Sierra, lost scanner connection.
Upgraded an iMac to High Sierra. CanoScan 8800 was working fine before upgrade. Tried to reinstall Scanner but it does not show up in Add a Printer/Scanner window in System Preferences. Canon states that no software is available to download for High Sierra, it's included in OSX. A different CanoScan 9000 works fine on second iMac with High Sierra. (Did the usual unplugging/plugging scanner, power off on, rebooting iMac etc.) Next steps anyone?
iMac, macOS High Sierra (10.13.3)