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You got it - it's 192 different colors

PaintShop just gives me the number of unique colors - nothing more - no value or location in an image file whatever. But I could find a way to export the patch file data from the i1Profiler editor as a tab separated text file with the RGB values but again no location data within the patch sheet...

Did you check if you have some dublettes with the same gray value along the gray axis - your standard 5x5x5 matrix of control points already places 5 control points along the gray axis - the mid points - with the 0 - 25 - 50 - 75 - 100 % luminance value - strict gray - a=0 b=0 which may overlap...

the test with a 096 patch profile delivered a deltaE of 1.4 vs. the high patch count - 2880 profile which is slightly wider than the DeltaE of 1.18 with 165 patches , the increase of patches from 96 to 165 patches for profiling delivers a measurable improvement reducing the deltaE...

I did another test and compared a print done with a profile with 165 color patches vs. a print with a profile with 2880 patches, printed on a ET-8550 with 106 Epson inks and the Ultragrossy standard driver setting , with rel col. rendering intent and BPC off. The test print covers all colors -...

You may try to compare prints done either with an ArgyllCMS profile or an i1Profiler or ColorMunki or .... profile generator, but be aware that every company has some room for variations how rendering intents are implemented - it would be the perceptuakl or the relative colorimetric mode...

I only can confirm @pharmacist 's findings above with a test I did on his previous patch sheet version with 154 patches - this shows that a pretty good profile is possible with such a low patch count.

Canon printheads have separate nozzle rows for different droplet sizes - Epson does not need that and operates with variable droplet sizes, explains the higher number of nozzles for comparable Canon vs. Epson printheads. Epson longer time ago published a description what is happening inside the...

You either try to resolve your Paypal issue with the support of that website or you go for another source for that manual

Download of the last i1Prifler version supporting the original i1Pro spectro is possible here - PC or Mac version https://xritephoto.com/ph_product_overview.aspx?ID=2630&Action=Support&SoftwareID=2107 The actual spectro acts as license dongle on XRite software, licence data can be transferred...

I made another test to compare profiles with based on different patch sheet counts and the impact onto actual prints. I did this - - I created several icc-profiles with 96 - 283 -720 - 1440 - 2880 color patches onto the same paper type, a glossy cast coated 210 gr paper by the Action thrift...

The software company developing and distributing Babelcolor software - various tools for color/profile mgmt - has ceased operation and made some versions of their software available for free - but without any support anymore. Have a look you might be interested. https://babelcolor.com/...

I found another ICC viewer delivering and confirming this same data, that does not appear to be that much relevant at all.

I tested several more Hahnemühle papers - Hahnemühle Photo Rag - Ultrasmooth - Matt Baryta - Bright White and even a Rice paper. i created profiles from patch sheets printed with the VFA settings and with plain paper high. Both use the pigment ink and deliver very similar black level values...

The impact of quality levels onto the gamut size are small - the driver is most likely switching to a smaller ink droplet size so the printhead needs more passes to put the same amount of ink onto the paper . Here is an example with a budget level glossy paper Action 210 , the gamut displayed...

Epson profiles contain a private section with 60 kB - the last line in the tag table of an icc profile. The profile inspector does not open this section and does not display the embedded (hex) code as it does with the other tags. It honors the privacy of the data. That's where Epson is most...

I won't get a VFA sample sheet for a test but I have a sample pack on order with various Hahnemühle cotton type papers on order and will do what we recommendet above - testing with different driver settings. https://www.fine-art-papiere.de/hahnemuehle-matt-fine-art-smooth-testpackung-din-a4.html

I did a test with a matte paper on the ET-8550, I created icc-profiles for various different driver settings; I used a matte paper Brilliant 230gr, I cannot affort to buy a complete A3+ Epson pack of the Velvet Fine Art , a sample pack/sheet is nowhere available. The coating has the most impact...

I'm a kind of irritated to understand what is so special with this Epson Velvet Fine Art paper and why it gets that much attention. Epson is offering this paper just in A3+ and A2, 20 A3+ sheets at 92€ which is pretty much at the upper end of the pricing range. Epson is specifying the paper as...

The VFA mode on the ET-8550 just runs with the highest quality mode which takes a pretty long time, if you select another matte paper you have a lower quality level available as well - standard and high, I'm happy enough with the print output printed with the standard quality level. Ink pooling...