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10 cartridges with 274 gram: about 27 ml per cartridge with is significant (also there is ink inside the tubing system and the dampers....thus you seen a drop of about 70% see pictures, so about 15-16 ml left in each cartridge). Yes the Epson Print layout does give you full control over...

Unfortunately the amount is much more: about 60% will be drained into the waste ink tank.....that is per cartridge so about 270 ml will be gone. Have a look at my post a year ago: https://www.printerknowledge.com/threads/my-new-epson-sc-p900-printer-terrible-amount-of-ink-down-the-drain.16565/

It is totally safe to update firmware on eco-tank printers: no chips on the bottles whatsoever, you can even put distilled water in the printer and it will print (without anythink visible on your paper though).

I am not sure, but my guess is the ArgyllCMS method take into account the total amount of patches chosen by which the black/white points and the neutrals (greys) are deducted from the total patch count and the rest of the patches are divided equally in the RGB-space to maximally avoid each other...

Personally I think the ArgyllCMS patch generator is much more intelligent compared to the one by X-Rite i1Profiler. Especially the control of the amount of white/black patches and especially the amount of grey steps you can choose at will does indeed a better job in improving details in dark...

I tried to manually change the arguments, but it is overruled by the script. When I choose -B3 instead of the standard 4 it still produces 4 black patches. So this is something you should tackle in the interface to be changed. Alternative you can make it possible to load an existing ti1 file...

I took some time to create a 702 patch target using 128 grey steps with the python script and below you can download the workflow for scanning with i1Profiler. The target has been optimized for the i1Pro2 scanning table. Note: using the standard patch generator in i1Profiler it is not possible...

The strange behavior of i1Profiler in the amount of grey and near neutral patch generating If you choose 1589 patches: alot of grey steps and near neutral steps: But when you add 1 extra patch (total: 1590) the grey steps and near neutral steps are GONE: This is the reason I prefer...

One thing in your python script: the amount of black patches is not defined but standard set to 4 I see the command window the argument -e4 (4 white patches), butt not the argument -B4 (4 black patches). If not specified the standard amount will be 4 black patches. If you want to change it add...

Hi @crenedecotret : that was some fantastic job you did with help of AI. I have generate a ti1 file and used ArgyllCMS to generate a ti2 and a corresponding tif file: 20 rows with 24 patches non-randomized and also loaded the AI generated pxf file in i1Profiler and generated the target with...

The reading can be done too by sending a pulse to the CR30: the ColorQC2 software can perfectly read a patch by pressing on the button "+Test Target", so it should be possible to drive the CR30 with the right software/driver without pressing physically on the CR30 top measuring button.

Take into account measuring errors. Like I have said there is little difference visually in prints, which you want to have. But have good look at the shadows (not crushed) if there is any difference when printing the same picture.

Modern RGB printers are pretty linear in behaviour, so there is not much difference between 325 and 480 patches, but for shadow details a larger patch size can certainly help. Just give it a try and see what does better: 480 vs 325 patches.

Actually I think the Inktec Powerchrome violet ink is probably a mix....I suggest to buy genuine Violet ink (in large cartridge of 350 ml) and suck the ink out with a syringe, like I have done. It gives a much better result.

I just have made a small improvement of my previous A4 format 300-patch target labelling the patch row with numbers from 1 to 20: start scanning from A1 to O20 with the CR30. Correction: the previous target has a numbring error not counting from 1 to 20 but from 1-19 (there were 2 columns with...

For our American friends, I have made a version for the US Letter format (216x279 mm) with 270 patches to be printed in the borderless setting, NO Expansion: retain size, color management: OFF. Note this target has significantly more patches than the so-called "High Quality Target"of the...

Today I printed the CR30 collar (thanks @Epatcola ), but I discovered the hole is a bit too tight and I had to increase the hole of the collar a bit. I redesigned it and also the separate ring.

There is also a bug in the gui.py (@x64, @micronica ): despite you can give an external icc name, the internal icc name (that is displayed in the profile setting of PS or Qimage) is just "profile". I think this should be corrected. I had to use small ancient tool called changedescription to...

with te latest version of ArgyllCMS I get an errorthat the ink limit is set to 290% by standard using colprof after I have done the the chartread command to read my targets. The older generated targets with ti2 do not have that problem. Not sure what is happening. However: it did not effect the...

OK, so for the moment only non-randomized patches will work. This is not a big deal, but when using several grey steps, because the hue increased with each following patch with a little but and sometimes without spacebars it is difficult to determine the end/beginning of the next patch...