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Printer calibration Question

RalphLambrecht

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I have successfully calibrated monitor and printer with my Color Munki Photo;worked well but, now I'm wondering.I calibrated the printer with all fresh ink cartridges; will the calibration still be good at various ink levels, or does it need to be done at a variety of ink levels?
 

Mr Bill

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Hi, I think what you are doing with the Munki is making ICC color profiles, not actually "calibrating" the printer, per se. Your profiles should continue to be fine down to the last bit of ink in a cartridge.

You probably already know this, but each color profile you make with the Munki is only good for the exact paper/ink and print driver settings you used to make the test print(s). For example, if you are using some sort of "unsupported" paper type you might have to try a couple of different printer driver setting to find one that works better (ie, it lays down enough ink but doesn't soak the paper). Then you use your Color Munki (with software) to generate an ICC profile. If you then want to try a print driver setting that lays down a different amount of ink, then you would want to make another color profile for that paper and driver combination.
 
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RalphLambrecht

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thanks for the help
 
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RalphLambrecht

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Hi, I think what you are doing with the Munki is making ICC color profiles, not actually "calibrating" the printer, per se. Your profiles should continue to be fine down to the last bit of ink in a cartridge.

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should be OK after replacing with new ink cartridges of the same kind too?
 

nmp

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That would be the cartridge manufacturer's dream come true...
 

Light Capture

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There were no differences to my eye when changing cartridges or when ink is low. Used epson with original ink for the process. Some of the cartridges were expired.

Most printers use all colours to print B&W. The best test is to print B&W image and see if it keeps neutrality. From my experience, around 10 calibrated media, differences are very subtle for regular subjects.

For certain subjects (colours) non-calibrated prints can be very wrong. It applies only to colours in gamut of the printer.

I'm using Datacolor solution.
 

Mr Bill

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should be OK after replacing with new ink cartridges of the same kind too?

Hi, yes, it should continue to be ok.

Of course there will be minor variations, even between successive prints. But these should not be noticeable to the human eye, even if the instrument can detect slight variations. In fact, if you take multiple readings of the same prints, you'll probably find a slight discrepancy here and there; it's not unlike using a densitometer on a negative - you might read a test patch at 1.51, but the next reading is 1.52; it's "on the fence," so to speak, and might fall either way.

Probably the best way for a photographer to keep an eye on things is to have a "standard image," and to make an initial reference print. If you ever think that something is amiss then make another print and compare critically against the reference. In our business we did all portrait work, so we used a portrait-type of image, including a Macbeth color chart; this allows spot readings if you want to check. (I'm presuming that the ColorMunki allows this; my experience has been either with i1 Pro units or a couple of automated strip readers.)

As a note, if you DO find noticeable color changes with a new set of ink cartridges this is a deficiency in the maker's quality control, not something that you should be expecting. FWIW, I don't know if the Munki software allows it, but the fancier software packages allow averaging multiple sets of target readings, so if you had several different (same model) printers you could average all and make a single color profile that is a "good fit" for any of them, and this would sort of accommodate production-line variations.
 
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Bob Carnie

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Like Bill we always used a reference image that had a colour checker good fleshtone and in our case we made the image with a grey background that was lit so there was a continuous gradation from black to white. This was
invaluable for determining cross curves.
I agree with others that there should be no noticeable difference when the ink is low , if fact if there was the whole system would be a disaster. I find inkjet printers much easier to use than RA4 prints from my Lambda- (whole other discussion)
 
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RalphLambrecht

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I appreciate all the information sharing;thank you all;I wish there were standard standard-image!
 
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RalphLambrecht

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You're right; it seems to be fine!