I see you rather kindly offered to help out with with a service manual for Mimaki JV3 160SP?
I've been an Epson authorized service agent for some years here in Australia but gave that away to take on a sign business....silly me!
Not sure what your terms might be but let me know if you're still abale to help out and keep in mind I may be able to help you with anything related to Epson...but not current models as I've been out of this for a while and not wide format which I was not not licenced to repair.
Anyway, nice to speek with you.
Kind regards
Brent