Pagewidth printhead assembly with flexible tab film for supplying power and data to printhead integrated circuits
View Patent ↗A pagewidth printhead assembly is provided. The assembly comprises: (i) an elongate ink distribution manifold that defines a longitudinally and centrally oriented region for receiving one or more printhead integrated circuits, the manifold having a plurality of ink inlets and a plurality of ink outlets that open into the region; (ii) one or more printhead integrated circuits mounted on the region for receiving ink from the ink outlets, each printhead integrated circuit comprising a plurality of inkjet nozzles, drive circuitry for driving actuators in the nozzles and bond pads connected to the drive circuitry; and (iii) a flexible TAB film for supplying power and data to the or each printhead integrated circuit, the TAB film connecting the bond pads with printer control circuitry. The TAB film extends around one longitudinal side of the ink distribution manifold.
1. A pagewidth printhead assembly comprising:
an elongate ink distribution manifold that defines a longitudinally and centrally oriented region for receiving one or more printhead integrated circuits, said manifold having a plurality of ink inlets and a plurality of ink outlets that open into said region;
one or more printhead integrated circuits mounted on said region and defining a pagewidth printhead, said printhead receiving ink from said ink outlets, each printhead integrated circuit comprising a plurality of inkjet nozzles, drive circuitry for driving actuators in said nozzles and bond pads connected to said drive circuitry; and
a flexible TAB film for supplying power and data to each printhead integrated circuit, said TAB film connecting said bond pads with printer control circuitry, wherein said TAB film extends around one longitudinal side of the ink distribution manifold.
2. The pagewidth printhead assembly as claimed in claim 1 , further comprising an ink storage unit in fluid communication with said ink inlets of said ink distribution manifold.
3. The pagewidth printhead assembly as claimed in claim 1 , wherein said ink distribution manifold is a molded member.
4. The pagewidth printhead assembly as claimed in claim 1 , wherein said printhead is configurable to print at 1600 dpi.
5. The pagewidth printhead assembly as claimed in claim 1 , wherein the number of connections to the printhead is about 100.