Printhead Having Ejection Nozzle Integrated Circuits
A printhead is provided having a support member for mounting the printhead in a printer, and a plurality of integrated circuits supported by the support member. Each integrated circuit has ejection nozzles defined on a substrate to eject fluid from an ejection side of the substrate and the support member is configured to supply the fluid to a supply side of the substrate. The ejection and supply sides being opposite sides of the substrate.
1 . A printhead comprising:
a support member for mounting the printhead in a printer; and
a plurality of integrated circuits supported by the support member, each integrated circuit having ejection nozzles defined on a substrate to eject fluid from an ejection side of the substrate, the support member being configured to supply the fluid to a supply side of the substrate, the ejection and supply sides being opposite sides of the substrate.
2 . A printhead according to claim 1 wherein the support member incorporates conduits for supplying the fluid to the nozzles.
3 . A printhead according to claim 2 wherein each integrated circuit comprises a plurality of channels defined between the ejection and supply sides of the substrate for distributing the fluid from the conduits of the support member to the nozzles.
4 . A printhead according to claim 3 wherein the nozzles of each integrated circuit are defined in rows.
5 . A printhead according to claim 4 wherein each conduit supplies fluid to two of the rows of nozzles.