Ereader question

[chocolatepot]

Does anyone know how to force a Nook (or a Kindle or any other ereader) to display the scanned book image rather than the version that's been translated into text? I've noticed on my mom's Nook that the older books have more mistakes in the transliteration/digitization/thing, and the things I'll want to download when I get one eventually will be older than those and probably have more mistakes, especially if the text has ligatures in it. It seems like there must be some way to do this ... or do the ereaders just not work that way?