Ink content of inkjet cartridges
I saw a discussion where everyone was complaining that "pages per cartridge" is a meaningless number. They wanted to know the actual ink content per cartridge to compare different options. OK, here's a start:
New CC643W cartridge weighs 35.8 grams
Used CC643W cartridge weighs 29.8 grams
So there's 6 grams of ink per CC643W cartridge (from HP).
Canon 3e black 53.1-21.4 = 31.7 gram ink per cartridge.
If you have similar data for other options, add them as a comment. Comments without actual data (promotional "fluff") will be deleted.