Printer head

摘要

An inkjet printhead (10) includes a compact substrate (28) having a pair of elongated edge portions for ink channel architecture (32), a central interior (78) for substrate circuitry, and a pair of truncated end portions for mounting and for electrical interconnects (20). The ink channel architecture (32) includes a plurality of ink vaporisation chambers (72) each having a firing resistor (70) therein, as well as ink feed channels (52,88) communicating through an ink passage from an underside of the substrate around both edges of the substrate to the vaporisation chambers (72). The central interior portion (78) excludes any ink channel architecture (32) thereby enhancing the structural stability. <IMAGE>