I own an IP4500 which is a very similar model and i've tried with and without a preconditioning profile. There was no visible difference. I also own a colormunki and use the i1 chart size (works fine with a ruler to guide the munki)
I just do this* targen -v -d 2 -G -g 128 -f 1386 -e 4 [name]* *printtarg -v -i i1 -t 300 -p Letter -C [name] * *chartread -v -B -H [name] **colprof -v -qh -i D50 -o 1931_2 -S AdobeRGB.icc -cmt -dpp -D "[Name]" [name]*
This will give you 3 pages to print out and scan. 128 gray patches are included. My monitor is calibrated with Argyll to 5000K 100CDM and I get a very good match with my prints. Monitor calibration will depend a lot on your lighting. I would say do a printer profile with the settings above, and then try different monitor temperatures to find the best fit (that how I ended up not using the recommended 6500K)
Never use a monitor profile for the -S parameter in colprof... it should be a working space profile if you're profiling a printer.
On 04/30/2013 05:08 PM, Arie wrote:
Hi everyone I'm in the process of profiling my printer. The goal is to come up with prints that will compare to my screen output. However, I am not sure whether I'm doing everything correctly. Here's what I have and what I'm doing. Monitor: Dell 2713HM (sRGB) Spectrometer: X-Rite Colormunki Photo OS: Windows 8 with 16-bit drivers installed Printer: Canon Pixma iP4850 (CYMK - aRGB) The monitor is calibrated at D5000, gamma 2.2 and 120cd/m2. I did the calibration through DispcalGUI and got most of the instructions from that website. Next, I started profiling my printer. As per the instructions, I first created a "pre-profile" using 210 patches. These are the commands I used: targen -v1 -d4 -G -e6 -f210 -g64 "c:\photography\profiles\printer\canon20130428" printtarg -v1 -iCM -h -T300 -pA4 "c:\photography\profiles\printers\canon20130428" chartread -v2 -c1 -B -H -T1.25 -D "c:\photography\profiles\printers\canon20130428" colprof -v1 -A"Canon" -M"iP4850" -Zp -qu -l260% -S"U2713HM 2013-04-14 120cdm² D5000 2.2 HQ 3xCurve+MTX.icm" -Tp -cmd -dpp -P "c:\photography\profiles\printers\canon20130428" Since there was no existing profile yet for the printer, for TARGEN I did not use an input profile. For the actual profile, I'll re-run TARGEN but this time with the canon20130428.icc profile (using -c). However, should I set an Ink Limit? And what would it need to be for a CYMK printer? For PRINTTARG, are there any parameters I missed or that should be altered? For CHARTREAD, I am not clear what the -F parameter does. Is it applicable to my situation? And what should my -T ratio be? I raised mine to more than 1 to give myself some leeway and not get too many errors. But is that the right approach to reach an optimal result given the printer type and measurement instrument? Last but not least: COLPROF. What purpose do the -A and -M parameters actually serve? It seems they are not used in naming the output file. Further to that, what about the applied gamut mapping? Should I use a colour space there, like aRGB or sRGB, or should I use my display profile so that the printer will closely match it? Any parameters I am missing? Once I have done all this, should I get to a fairly close match between print output and screen or is there a step I missed / have I missed any parameters? Thank you very much for your time to respond to my request. Yours Arie
