The latest Epson P400 Service Manual covers all generations of the printer including the R1900 / R2880 / R2000 / R2000S

https://paulozzello.com/wp-content/uploads/files/epson-p400-service-manual.pdf

This document contains all the media type printer settings for Mitsubishi Pictorico papers including Pro Hi-gloss white film and Ultra Premium OHP transparency film. This is the same document that disappeared a few years ago from the Mitsubishi website. You will find all the necessary printer settings for both Epson and Canon printers.

Pictorico Media Type settings for Epson and Canon printers