Patent ID: 7591539
Filing Date: 2009-09-22
Classification: B41J,G06F,G06K,H04N

Abstract:
1. An inkjet printhead comprising: a supporting wafer substrate; an array of drop ejection apparatuses formed on a first side of the supporting wafer substrate, the array of drop ejection apparatuses configured as pairs of rows of drop ejection apparatuses defining a common ink channel between each pair; a plurality of ink supply conduits extending through the supporting wafer substrate from a second side of the supporting wafer substrate to respective common ink channels on the first side, wherein, each of the drop ejection apparatuses has a chamber with a nozzle, and an actuator for ejecting drops of ink through the nozzle, the chamber having a side wall adjacent to the common ink channel, one of the ink supply conduits supplies ink of a first color to drop ejection apparatuses in a first pair of rows, and another of the ink supply conduits supplies ink of a second color to drop ejection apparatuses in a second pair of rows, and the side wall adjacent to the common ink channel is adapted to permit ink flow therethrough from the common ink channel into the chamber.