Interesting article in Wired Magazine. http://www.wired.com/magazine/2011/04/st_whatsinside_inkjet/
Water
The ink in inkjet cartridges can be as much as 95 percent superpure deionized water. Yet at more than $3 per milliliter, it would be cheaper to print your vacation pics with Dom Perignon...
HI, long time lurker, 1st post. So I have been soaking up loads of great information here, alot of you really know your stuff! Just a little history, I tried reflilling many years ago and it was a bad experience, this was really before the forums we have now where you can really learn from...