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On the basis of my testing, I am at least equally concerned about the ink. When I first started refilling I tested all the better brands of ink that I could get for fading in light, on different media (HP writing paper, two HP photo papers, and two printable CD types). The OEM ink performed...

Thank you both for all the information.

The article does make the statement "This should also provide correct measurements for samples that show fluorescence active in the visible wavelength area (few inks and toners do show this behaviour to some extent)." From the context I assume they mean "a few inks and toners do show this...

What is a Pro 2 Rev. E? There's one for sale.

I looked up typical coated window glass, and yes, it transmits some UV. You know that is the case because if it didn't transmit some UV, it would block some visible light and would have a prominent visible tint. So I think they all do, except maybe those strongly colored glasses on some office...

I have a calendar that I had printed, which shows very strong blue-violet fluorescence from the ink! (It was supposedly printed by a wet photo process.) The fluorescence is especially obvious in direct sunlight, and much less obvious as you move away from the window. I can't tell if it's...

Thank you both for adding that information on all the Pro models. Adding to the difficulty of buying one of them, in the U.S. I didn't see a single e-bay seller that would accept returns. Imagine running into some software nightmare, or finding that it was not configured the way you though.

I see, thank you. I really appreciate the advice. Also, the Pro instruments except for the Spectrolino have better spectral resolution. The Spectrolino also records only up to 650 nm, compared to 750 nm for the other instruments.

Thank you very much for the information. Thanks also to Ink stained Fingers. Andreas, you actually mentioned the Munki/i1Studio plus third party software such as yours. Your software? Can you be more specific? I already know about ArgyllCMS, and should be able to handle it. I have Windows...

Thanks for your knowledgeable reply, but I think there's a misunderstanding here. The i1Studio is a ColorMunki spectrophotometer, with 31 or 90+ spectral bands, depending on the setting. (X-rite's model names are so unhelpful.) In theory, that should be able to handle the task. That's why I...

Hello, Ink stained. What a great coincidence. I'm desperately trying to solve my color problems, having just been forced to farm out a calendar with mediocre results, and basically being unable to print anything to my satisfaction. I'm willing to throw some money at the problem, so I'm...

That's Danish. Bitte Mand i Knibe. I don't recognize the costumes, though.

Just to be clear, that's not metameric failure. It's a completely different phenomenon, having to do with reflected light. Metameric failure refers to color differences when viewing with two different light sources -- not with a single source, as in these pictures. It's possible that the...

Alexandrite does show metameric failure, and diffraction has nothing to do with it. (I used to teach mineralogy and optical mineralogy, and I've done lots of x-ray diffraction.) Most people call the phenomenon metamerism, but persnickety people on the web say it's supposed to be called...

No, metamerism, more properly called metameric failure ( https://en.wikipedia.org/wiki/Metamerism_(color)#Metameric_failure ) is a different phenomenon. "The term illuminant metameric failure or illuminant metamerism is sometimes used to describe situations where two material samples match when...

Sorry I didn't notice this before. The answer is maybe. I have a PRO-9000 with blue-grays that are almost the color of an eggplant when first out of the machine, but settle down later. Still, when I try to adjust the color, it's hard to get it just right so it's satisfactory in both tungsten...

It's very easy to replace Canon and HP heads, and I assume Brother heads as well--the only problems being cost and availability. Epson heads are not user-replaceable.

I've never heard of ink "going bad" in the printer. The main problem is that the head can dry up, although the only printer that ever gave me that problem was an old HP with an integrated cartridge. I prefer pigment ink for written work. I really don't want to take chances on my printed work...

I didn't look at the list, but most HP cartridges are indeed tanks with no printhead. The integrated units are generally found on the cheapest printers, but don't give you much ink for your money.

I've wondered about this too. I have one of those cheap heads for HP that I am keeping as a spare part. (I don't remember where it came from.) The packaging appears to be genuine, but I may never know until I need it.