Inkjet printer having printhead plumbed for optimized color mixing

1. An inkjet printer comprising a stationary inkjet printhead positioned relative to a media feed direction, said printhead comprising a plurality of printhead integrated circuits, each printhead integrated circuit comprising a plurality of color planes for ejecting different inks, each color plane comprising at least one nozzle row defined in a nozzle face of said printhead, each nozzle in a respective color plane being supplied with a same ink, wherein each printhead integrated circuit is plumbed such that a first color plane positioned furthest upstream with respect to the media feed direction ejects yellow ink and a second color plane neighboring the first color plane ejects black ink.

2. The inkjet printer of claim 1 comprising at least two color planes ejecting black ink.

3. The inkjet printer of claim 2 , wherein each color plane ejecting a non-black ink has at least one neighboring color plane ejecting a black ink.

4. The inkjet printer of claim 2 , wherein a third color plane ejecting a non-black ink is sandwiched between a pair of color planes ejecting black ink.

5. The printer of claim 1 , wherein a distance between nozzle rows from neighboring color planes is less than 200 microns.

6. The printer of claim 1 , wherein the printhead is plumbed such that color planes across the nozzle face have an alternating sequence of non-black and black inks.

7. The printer of claim 1 , wherein the yellow ink contains a greater amount of surfactant than the black ink.

8. The printer of claim 7 , wherein the yellow ink contains at least 0.4 wt. % more surfactant than the black ink.