I don't like to double post, however after skimming parts of the linked PDF, it turns out that the style of optical scanners you are talking about are actually

I don't like to double post, however after skimming parts of the linked PDF, it turns out that the style of optical scanners you are talking about are actually in there. One of the models (the ES&S M650) might be the actual scanners you are talking about, and that model has a number of terrifying vulnerabilities!