Ink jet printhead having columnar arrays of transistor drive circuits
View Patent ↗An ink jet printhead is provided. The printhead comprises a printhead substrate including a plurality of thin film layers and at least three side by side columnar arrays of drop generators extending along a longitudinal extent. Each columnar array of drop generators provides ink drops of a different color and has at least 96 drop generators. Each columnar array of drop generators is separated from each other by at most 1060 micrometers. The printhead substrate also includes at least three columnar arrays of transistor drive circuits formed in the printhead substrate respectively adjacent the columnar arrays of drop generators for energizing the columnar arrays of drop generators.
1. An ink jet printhead, comprising:
a printhead substrate including a plurality of thin film layers;
at least three side by side columnar arrays of nozzle arrangements formed in said printhead substrate and extending along a longitudinal extent;
each columnar array of nozzle arrangements providing ink drops of a different color; and
at least three columnar arrays of transistor drive circuits formed in said printhead substrate respectively adjacent said columnar arrays of nozzle arrangements for energizing said columnar arrays of nozzle arrangements.
wherein a distance between consecutive nozzle arrangements is such that a series of dots can be printed with a resolution of over 1000 dpi.