Accurip and Charlie was a great help. Tried fixxons, chromaline accuart 3 and dark star film, same problem on all. Chromaline tried to help but were barking up the wrong tree, as I was, focusing on the roll tension. It's actually a feed issue when the printer feeds thru non printing areas of the media.
It's clearly an issue with the printer, maybe the multi sensor or feed mechanisms. Epson won't fix it as is but after it inevitably happens with their media I'm going to lean on them to send a tech with the appropriate replacement parts or swap out the printer.
Underpressure yer sharp, that's the fix I developed after weeks of troubleshooting- 0.005pt line at the very left edge of all films, printer won't resolve it but it forces the head to travel and keeps the feed correct.
Otherwise happy with the printer, just disappointed that a printer in this class would be so off and the maker squirm out of correcting it. I think we just have very poor luck with equipment.
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