Printprism: I have bought it to test its capabilities and quality of the rgb profiles

[pharmacist]

I have done a test with a very difficult printer that prints with a huge sepia hue especially in the greys: the Canon TS705 using aftermarket cartridges (Action):

Above the print without color management and below with a dedicated PrintPrism target (tonality: neutral):

I am really impressed by the results of Printprism, because this printer + ink combination really needs profiling to get a decent result. The result is very similar as using a profile generated by a spectrophotometer (Colormunki, i1Pro)

 

[ThrillaMozilla]

Can you get data from the scans, e.g. the measurements?

 

[pharmacist]

I have to check into the files inside the program directory of printprism to see if I can get some data from it.

 

[pharmacist]

I have sought after something about measurement data, but there is nothing I can find in the directory or in programdata. Most probably it is a closed system, only to have the end profile as the result.

Anyhow I have done a test again today of a profile I did not have printed properly before (I used sharpening of the target, which you must NOT do at all) and also trimming the target alongside the black border line printed around the target. Also cleaning the glass surface of the scanner properly (removing stains and dust particles) is very important to maximize scanning quality. This time I printed the target on a smaller 13x18 cm photo card (5x7") and scanned with double recommended scanning resolution at 600 dpi to get as much data per patch, as the patch sizes are now significantly smaller and this is the 3D-view in iccview.de:

The measured gamut value is significantly smaller than one produced with the i1Pro2 and i1Profiler software (maybe because the i1Profiler uses more interpolation ?), but the prints are identical to my eyes in terms of vibracy and colour accuracy and shadow details.

I printed the test image again using this regenerated target with the recommended procedures (no sharpening, 600 dpi voor the smaller 13x18 cm target, trimming alongside the dark border line, placing the printed chart in the middle of the glass surface of the ET-8550 scanner and also using the 3x stacking scanning to improve scan quality) and this is the result (scanned):

Bright vivid colours and neutral greys and on pair with a profile generated with a real spectrophotometer like the Colormunki Photo/i1Studio or the i1Pro1/i1Pro2. This software package really exceeds my expectation despite my initial suspicion how this can be done, but I would really recommend this software package in combination with one of the supported scanners mentioned in the support list.

 

[mavtop]

Hi @pharmacist in this last print, i see a stronger Red respect all the other previously printed test images

I don't know if it's the paper (Satin more saturated ?) /printer/ink combination or what

 

[pharmacist]

The above scan is the true color (profiled scanner), the previous are only print screen and do not reflect the final print output. Printscreen (not accurate) is only to compare the softproof between the 2 profiles.

 

[mavtop]

The above scan is the true color (profiled scanner), the previous are only print screen and do not reflect the final print output. Printscreen (not accurate) is only to compare the softproof between the 2 profiles.

Ok i was thinking it was a shift on the Red color of the generated profile