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To pick up the first post I will now show you how to use the CR30 dispensary. Thanks to @crenedecotret efforts to make a special randomizing ti1/pxf-file generator I managed to make a new 300 patch target for the CR30 which is finally randomized (in order to get a sharp in color/hue between...

Well actually my first impression is that the 300 patch ArgyllCMS/CR30-target (a single sheet of A4) is comparable to the X-Rite i1Studio 50 + 2x50 BW neutralising method (the version you are using the second patch series grey/near neutral steps to neutralise BW printing in color images). I am...

To answer your questions: yes the device is very good as well as the generated profiles. It has been crossed checked by another member at dpreview comparing it with his i1Pro1 device. I have the i1Pro1 and i1Pro2 to compare the generated profiles using the same patch set (ArgyllCMS) and it does...

Having some time now I write simple manual how to generate a simple RGB printer profile using ArgyllCMS and the very affordable CR30 colorimeter that has been proven to be very reliable and accurate by multiple users on this forum and as well by some at dpreview.com. As the necessary program...

I have made a new A4 target with pseudo-scrambled patches for the CR30 with 300 patches and 21 grey steps. I will upload it later with a rudimentary how-to manual if I have some time, because it is rather busy at work now.

you will need to force about 5-6 cleaning cycles in order to push out the old ink and prime the tubing and dampers with the new ink. Best to do it in a row, otherwise the diffusion speed can mix the old with the new ink, giving a annoying gradient in printing between old en new ink.

Maybe I should give it try to use the sRGB color space as the target space when generating my profiles and see what happens in the perceptual intent when printing

softproofing with the sRGB vs AdobeRGB based profiles using the relative colorimetric intent (NO black point compensation): No difference using sRGB or AdobeRGB as target color space using the colprof.exe to generate both profiles.

I get this with my makeprofile.bat (using adobeRGB as the reference color space for colprof.exe): No difference in volume size and white point. Did you compare the other profiles with another using iccview.de ? I just tried my profile against your "better" profile using sRGB as the reference...

Could you upload the ti3 file so I can have a look at it and regenerate the profile again ?

Actually the best way is to buy (expired) violet ink cartridge from LPF Epson printers and suck the ink out with a large syringe: the gamut is way better than the home-brewed "Violet" Inktec Powerchrome ink.

The Blue one

You see I am a complete noob in programming :oops: Note: the SpyderPrint does supports strip reading, but spot reading is much more accurate and I can scan a 300 patch target faster with my CR30 than more than a decade ago with that terrible Spyder3Print device and still couldn't produce a...

Here it is the older drivers/software for Colormunki/iStudio: ccStudio https://colorconfidence.com/pages/downloads

All the files can be found on the topic I started and can be downloaded there including the python scrips and the targets (247, 266, 270 (Letter) and the latest 300 patch target) and argyllcms can be found on the website of argyllcms.com. Just do your work in finding the files.

I will try to write a compact how-to manual how to create a printer target with the CR30 + ArgyllCMS + Python scripts (thanks to @micronica and others) if I have some time later this weekend

I suggest to buy a chip resetter to reset the chips. The Pro 3800/3880 chips can be reset.

I have just found this link of the manufacturer of the CR30. https://www.chnspec.net/Spectral-Colorimeter-CR-30.html It does specifiy: spectrophotometer and look at the spectral range: 400-700 nm in 10 nm steps, which very similar to the 380-730 nm range of the i1Pro2 (also in 10 nm steps)...

I suggest to purchase the CR30 colorimeter (actually a true spectrophotometer). I think the price would be almost the same as your IT8 target and much more accurate (on pair with Colormunki/i1Pro). The one I have bought...

The software runs on Windows only and needs a com-port: maybe a virtualisation is possible in MacoS. The software is called ColorQC2 and is necessary to capture the LAB-values and the spectral data needed by ArgyllCMS to create the printer profile.