Doug. I have dragged and dropped the file you edited into i1Profiler and, in less than a minute, I had a profile. So, I have achieved my first goal.
I checked the profile for gamut volume using Argyll's gamut command but, for the first time on an X-Rite Version 2 profile, I got an error message:
192-168-1-106:argyll rob$ iccgamut -v2 lula1_rgblab_cgats.txt
iccgamut: Error - 1, icmHeader_read: wrong magic number 0x20582d52
I also went back through my notes and found the original targen command to create this 1196 patch neutral target. The number 1196 fell out when I found I could fit this many patches sized 9mm x 7mm on two sheets of A4. I have since read that patches of 10mm square or more give better accuracy with the DTP70. Not sure of best patch size for i1ProV2 yet. As you can see I was also playing around with using a small input file (400a.icc). I am not using an input file in my current experiments.
192-168-1-106:argyll rob$ targen -v2 -d2 -G -e8 -B8 -g64 -f1196 -q -A1.0 -c400a.icc -N1.0 -U -v -w -W 1196Neutral
iRGB test chart
White patches = 8
Black patches = 8
Compostie Grey steps = 64
Full spread patches = 1196
Added 1196/1196
Total number of patches = 1196
Execution time = 0.021062 seconds
The big picture is that I bought an Epson 7880 last year from a deceased estate. It was half way through its second set of inks but hadn't been used for years. I replaced the dampers and used very warm water in a syringe to pump 15" of solidified Magenta ink out of the line that'd otherwise refused to budge. It took me a couple of months to get the printer in good working order and this was worthwhile as it had printed less than 100metres of paper. Once it was cleaned, I bought some cheap InkTec ink from a source in Germany to further test whether this printer was worth using (I didn't want to buy a full set of Epson inks when I wasn't yet sure that the printer was OK. I believe that InkTec ink is made in Taiwan. It had a tendency to pool on dark patches on glossy paper unless I reduced the colour density setting by 5%.
Since February I have been working my way through creating profiles, reading about colour management and stepping into the complexities of ArgyllCMS (I have only scratched the surface but can generate targets, convert them for import into ColorPort, read them using the DTP70 and then use colprof, profcheck and iccgamut to explore my results).
I started profiling a few years ago using a DataColor Print 4 setup. I was never happy with it because it was sticky to use and produced muddy shadows. I used this initially on an Epson R800, but subsequently acquired an Epson 3880 which is still my main printer. I also experimented with a ColorMunki from my Camera Club and although I liked the colormunki workflow I didn't get noticeably better results.
I bought the DTP70 when I read on the InjetMall site that they use one to create profiles and just drag and drop the results into i1Pro. By chance I was able to buy one for a few hundred dollars and it seems to work well. Purchasing the i1Photo Pro V2 was opportunistic when I saw one for sale on eBay at less than half price. It turned out to be a good purchase as it had never been used.
It looks like I will need to generate patch sets in ColorPort if I want to use them in i1Profiler without making the workflow too complex.
I started to run low on the InkTec ink last month. With it, my best profiles were producing gamut volumes on Ilford Prestige papers in the 670K region. This seemed low and was about 100K units less than profiles produced on my Epson 3880 with Epson ink and identical workflow. After a lot of indecision, I bought a set of Jon Cone K3 inks and have recently loaded these into the 7880. My initial test have been disappointing on the gamut volume front so I was hoping that the ColorPort/DTP70/i1Publish workflow might give me better results.
Obviously, gamut volumes aren't prints and there is a world of effort getting images ready so they print the best that they can.
I am going on holidays for a week from this coming weekend so I probably won't have time to do more testing until I get back.
Thank you so much for getting me on my way.
Rob