Hey wilsont – I recently had a client wanting to use the CR-180 with my EZTwain library, and we couldn’t find the MICR information either. At least, it doesn’t show up as any kind of standard extended info, as far as EZTwain could tell.
But I’m skeptical that Canon would bother to create a TWAIN driver for a check scanner and not give access to the MICR data! My guess is it’s in a custom capability. If you are still interested, have one of these gadgets available, and want to try ‘one more thing’, I can talk you through how to do it interactively.