Post any questions you have here and I will do my best to help. We have been working with Lexmark since the summer of 2016 and I have access to Lexmark service support documents.
For this engine we have 217 in the field so we have seen a thing or two.
The most helpful advice I can provide will be from actual experience. Unfortunately Sharpmark firmare will probably always be a minimum of 2 levels older than Lexmark so any fixes addressed by a firmare update will be a sit and wait situation for Sharp dealers.
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