The black ink in my printer comes out a dark green?
My printer is a HP C4780.
I put in a new black ink cartridge just now, (genuine hp) and I am printing on Kodak Premium Photo Paper.
I need to print photos for my photography project, most of the photos are mainly black so the greenish parts are very obvious.
What can I do?
In a round about way your saying the original black ink was OK but now it has a greenish tint.
Ink is patented. Refills can only come close. If you have an option to adjust color output then I guess you'll have to try doing it. But you do realize once you find the right color combination it may not work for different paper.
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