Solvent
6000GS (onyx)
S60370  (onyx)

Aqueous/Pigment/Water-Base
3880
7600  Matte Black  (onyx)
7600  Photo Black (onyx)
7900  Matte Black  (onyx)
7900  Photo Black  (onyx)
9600  Matte Black  (onyx)
9600  Photo Black (onyx)
9800  Photo Black (onyx)
9800  Matte Black  (onyx)
9900  Matte Black (onyx)
9900  Photo Black (onyx)

RGB – 7900/9900 Settings 

– Allow whatever software you are printing with to manage colors
– Use the Phototex EP7900 (or 9900) UCHDmk_1400 profile
– In the printer’s dialogue screen, select Roll Paper, Watercolor Radiant White, Matte Black ink, Color Mode Off (No Color Management), Super Photo 1440 dpi, Super Microweave checked, High     Speed Unchecked.
– Color density set to -18 (-20 results in a slightly faded image, -15 results with a bit of pooling in darker than middle gray tones), 5 for drying time.

addtional options:
9000/8000 series
1. Matte Black – Velvet Fine Art (preferred if you have a choice)
2. Photo Black – Luster 250

4880 – Try the Photo Quality Ink Jet Paper

11880
USE NO PROFILES
SETTINGS: ULTRA SMOOTH FINE ART ,COLOR – MATTE BLACK ,COLOR DENSITY – 30%
DRYING TIME 5 SECONDS, PAPER FEED – 0, SUCTION – STANDARD PAPER THICKNESS – 3
MODE – CUSTOM, GAMMA – 2.2, COLOR CONTROLS
BRIGHTNESS, CONTRAST, SATURATION, CYAN (–O), MAGENTA (+5), YELLOW (-5)

Epson Surecolor T7000 – Using Enhance Matte setting seems to work wonderfully.