Patent ID: 8702206
Filing Date: 2014-04-22
Classification: B41J,C09D

Abstract:
1. An inkjet printer comprising: an inkjet printhead comprising a plurality of color planes for ejecting a plurality of 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 said printhead is plumbed such that a first color plane ejecting a non-black ink is sandwiched between a pair of color planes ejecting black ink; and a plurality of ink reservoirs in fluid communication with the printhead, said ink reservoirs containing the black and non-black inks, wherein: an amount of surfactant in each non-black ink is at least 0.4 wt % greater than an amount of surfactant in the black ink; and each color plane ejecting a non-black ink has at least one neighboring color plane ejecting a black ink.