P900 Premium glosssy paper not enough patches or fake Epson ink?

[Ink stained Fingers]

P800 is discontinued AFAIK,

and the Canon Pro 10s as well since a long time but still going strong by refill users

 

[Smile]

Seems like EPSON has surecolor printers fitted with Epson Media Installer. Crapware that allows one to dig even deeper hole for correct settings. 3 videos on youtube from epson.

The program talks with the printer, allows to set printer profile for custom media setting that you can rename to match printer profile used.

Now that is all fine, but it does not allow to use empty (no profile selected) workflow for printing the test targets. The EPSON user guide page 65 https://files.support.epson.com/docid/cpd5/cpd58636.pdf

"Off (No Color Adjustment) Turns off color management in your printer software so you can manage color using only your application software. Note: An ICC profile is required if color management is turned off."

Bu even if you turn it off, and use acpu the grayscale of profile is bad as it can be:
ColorThink shows light colors 2.2 to 1.3 at 50%.

A printer like EPSON L850 shows value of 0.5-0.1 at 50%.

 

[Smile]

Now tried to use the Epson media installed to install a X-Rite Generic Lab Profile.icm as media profile for custom media and print test chart using PS with Printer manages color.

Now if that does not work, I'm out of ideas. Firmware update?

Printed same test chart from Win10 and another from Win7