Patent ID: 6357864
Filing Date: 2002-03-19
Classification: B41J,H05K

Abstract:
A printhead cartridge body for use in an inkjet printer, the printhead cartridge body comprising:at least one TAB circuit, including: a first region, having a first face and a second face and a first axis and a second axis substantially perpendicular to the first axis, a second region, having a first face and a second face and a first axis and a second axis substantially perpendicular to the first axis, a plurality of conductive traces located on the second face of the first region and on the second face of the second region, each trace having a first end and a second end, wherein the first end of each trace is substantially parallel with the second axis of the first region, and at least two rectangular apertures disposed on the first region, each aperture having a length and a width, a first axis along a length thereof and a second axis along the width thereof, wherein the first axis of each aperture is aligned with the first axis of the first region of the TAB circuit and the second axis of each aperture is aligned with the second axis of the first region of the TAB circuit, a PCB, including: a first face and a second face, a first axis and a second axis substantially perpendicular to the first axis, and a plurality of conductive contacts, wherein the conductive contacts arc electrically connected to the first ends of the conductive traces, wherein the first face of the PCB is disposed adjacent the second face of the first region of the TAB circuit, wherein the first axis of the PCB is aligned substantially parallel with the first axis of the first region of the TAB circuit, at least one printhead heater chip, including: a first face and a second face, a first axis and a second axis substantially perpendicular to the first axis, and a plurality of conductive contacts, wherein the conductive contacts arc electrically connected to the second ends of the conductive traces, wherein the first face of the printhead heater chip is disposed adjacent the second face of the second region of the TAB circuit, wherein the first axis of the printhead heater chip is aligned substantially parallel with the first axis of the second region of the TAB circuit, and an encapsulant layer substantially enclosing the rectangular apertures to prevent ink mist from penetrating the apertures.