Why does printing in black & white deplete the yellow cartridge?
I have a Hewlett-Packard inkjet printer and 95% of the time I print in just black and white. In the print dialog, I select “black ink only”, yet I’ve noticed that the yellow cartridge is used up at approximately the same rate the black one. (The cyan and magenta, however, are not used, these are depleted only when I print in color.) Why is that?
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