Printhead nozzle arrangements with magnetic paddle actuators
First Claim
1. A printhead having a plurality of nozzle arrangements, each nozzle arrangement comprising:
- a wafer substrate defining a nozzle chamber, said chamber having a roof wall with an ink ejection port defined therein and an ink supply channel defined through the substrate for supplying the chamber with ink;
a magnetic coil arrangement positioned around the inlet of the nozzle chamber;
bridge members spanning over the magnetic coil arrangement, the bridge members being supported on support posts protruding from the magnetic coil arrangement and having a resilient characteristic; and
a magnetic paddle supported from the bridge members over the inlet, the magnetic paddle for ejecting ink from the chamber via the ejection port.
3 Assignments
0 Petitions
Accused Products
Abstract
A printhead has a plurality of nozzle arrangements. Each nozzle arrangement includes a wafer substrate defining a nozzle chamber, said chamber having a roof wall with an ink ejection port defined therein and an ink supply channel defined through the substrate for supplying the chamber with ink; a magnetic coil arrangement positioned around the inlet of the nozzle chamber; bridge members spanning over the magnetic coil arrangement, the bridge members being supported on support posts protruding from the magnetic coil arrangement and having a resilient characteristic; and a magnetic paddle supported from the bridge members over the inlet, the magnetic paddle for ejecting ink from the chamber via the ejection port.
420 Citations
6 Claims
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1. A printhead having a plurality of nozzle arrangements, each nozzle arrangement comprising:
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a wafer substrate defining a nozzle chamber, said chamber having a roof wall with an ink ejection port defined therein and an ink supply channel defined through the substrate for supplying the chamber with ink; a magnetic coil arrangement positioned around the inlet of the nozzle chamber; bridge members spanning over the magnetic coil arrangement, the bridge members being supported on support posts protruding from the magnetic coil arrangement and having a resilient characteristic; and a magnetic paddle supported from the bridge members over the inlet, the magnetic paddle for ejecting ink from the chamber via the ejection port. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification