Looks as if a more specialist forum site might be best in this case.
Your problem sounds as if it may not apply only to Epsons, so even with forums divided by manufacturer, I'd start by searching the entire site (leaving out the make/model). Could save time (and sometimes find a relevant how-to article).
Printerforums.net is one example. It also sounds like one for the printerknowledge.com forums (they feature a lot of d-i-y solutions that aren't in the interests of obsolescence).
The US forums usually yield more results than UK ones but, like other IT stuff, printers often have a very different name for each market. I've found it very fiddly to even check whether it does (unless the user guide mentions it), until I tried an image search on the manufacturer's photo, which does the trick for me. (Some thumbnails show the URL and so the country, but most are from US sites anyway). And sometimes the answer I need turns out to be in an Australian forum, (maybe because of the high proportion of users favouring plain English!).