Grey prints as a color by Epson ET 15000 printer. Any fixes?

[keystrike]

Every grey from 30% to 60% comes out dark blue if Epson manages color and dark green if PS manages color. 

Macbook pro 2016,  Big Sur 11.2.1,  PS 22.2.0. RGB color. The paper does not matter. I made a test sheet with strictly grey colors but as RGB document (not greyscale). I've tried many different combinations of available settings (there is not much flexibility). It also happens for every one of my photos that have grey.

If anyone has seen or heard about this problem I will supply more details.

I will be returning the printer if no solution.

Thanks

[davescm]

Does the Epson ET-15000 come with specific ICC profiles for your paper? If so, make sure you are using the correct profile when using Photoshop manages colours.

Dave

[Stephen_A_Marsh]

Are you using Epson paper? Epson ink?

The Epson printer driver is based around specific media, ink and other settings.

Third party media would give different results without using the correct printer driver settings and ICC profile.