High frequency of droplet ejection with minimized crosstalk and a uniform large ink droplet weight are realized in an inkjet printer printhead which employs two ink feed channels to couple an ink firing chamber to the source of ink. A first one of the ink feed channels has a lower fluid resistance to ink flowing in the channel than a second one of the ink feed channels. The first ink feed channel and the second ink feed channel each have an inlet to the ink source and are arranged such that the inlet of the first ink feed channel is closer to the ink firing chamber than the inlet of the second ink feed channel. Furthermore, adjacent ink firing chambers are arranged such that a lower fluid resistance ink channel of one ink firing chamber is next to a higher fluid resistance ink channel of a neighboring ink firing chamber. Nozzle diameter, heater resistor, and firing chamber dimensions are also optimized for the printhead.