Search results

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.

better a second-hand Colormunki: way better or the CR30 Colorimeter (about €60 new on aliexpress.com).

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.