I know a technician in that area, and for the life of me, i do not remember his name! I have tried searching the boards because i have put his name forward in the past, but not getting anything back.
To be honest, I do not know if he services an OKI but i know he does several different brands, so worth a shot. i am sure he may know someone even if he doesn’t himself. i just need to remember his name now! useless i am, i know!