Patent ID: 8702207

Claim:
A fluid-ejection printhead die comprising: a plurality of first fluid-ejection nozzles to eject fluid of a first type, the first fluid-ejection nozzles organized over a first row and a second row non-collinear to the first row; a plurality of second fluid-ejection nozzles to eject fluid of a second type different than the first type, the second fluid-ejection nozzles organized over a third row and a fourth row non-collinear to the third row, the fourth row at least substantially collinear to the first row; and, a mixing barrier at least substantially between the first row of the first fluid-ejection nozzles and the fourth row of the second fluid-ejection nozzles; wherein the first row and the fourth row each have a short edge and a long edge, and the mixing barrier is positioned just between the short edge of the first row and the short edge of the fourth row; or wherein the first row and the fourth row each have a short edge and a long edge, and the mixing barrier is positioned both between the short edge of the first row and the short edge of the fourth row and between the long edge of the first row and the long edge of the fourth row.