How can you tell which inkjet container is out of ink?

My old HP Deskjet 930C tells me that one of the ink cartridges is empty - how do I figure out which one (sure - I should do it by weight with a digital scale mounted on a shelf behind the printer - but i didn't get the starting weight, so tell me another method, pls)How can you tell which inkjet container is out of ink?
Dont you think it would be the lightest one?How can you tell which inkjet container is out of ink?
HP websites provides solutions to all printer related queries.


Hope the below websites answer your queries:





http://h10025.www1.hp.com/ewfrf/wc/docum鈥?/a>





http://h10025.www1.hp.com/ewfrf/wc/docum鈥?/a>
Look at the printer program on your computer if possible. If not look for printer and hardware then it should tell you within the printer section, may be different getting there depending on your OS.
If it don't print color its the color one. If it don't print black it the black one. Brilliant aint I.

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