My DELL printer has been telling me it's out of ink for 2-3 now! Guess what? I just keep printing, and printing and printing!
I guess when the sheet of paper comes out BLANK or partially botched...it's really out of ink!
I read somewhere that most home office printer ink cartridges are tossed out when they are actually not empty at all due to this inaccurate "out of ink" warning.
So the next time your printer threatens you that it needs replacing...keep printing and printing til a page comes out botched or blank. You'll be saving yourself a lot of money.
Better to waste a piece of paper than toss out ink!
BTW: most of my printing isn't critical. Just the normal kind of stuff. If I were going to print a photo on expensive photo paper, I would make sure my printer ink was full. I've unwrapped a full cartridge, put it in...printed a photo...taken it out, wrapped it back up, and put back the "empty" cartridge for further "squeezing". Then I re-installed the new cartridge.
Ink costs too much to waste.