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Diaphragms for electrostatic actuators in inkjet printers

A technology of actuators and printers, applied in printing and other directions, can solve problems such as the fragility of piezoelectric transducers, the difficulty of transducer design and power, and the limitation of the actual density of actuators.

Inactive Publication Date: 2016-03-23
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for piezoelectric transducers, reducing the size of the transducer and increasing the number of transducers may lead to various design and electrical difficulties
For example, thinner, smaller piezoelectric transducers can be fragile and expensive to manufacture
Additionally, cost-effective electrical interconnects for such piezoelectric transducer arrays may limit the practical density of actuators

Method used

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  • Diaphragms for electrostatic actuators in inkjet printers
  • Diaphragms for electrostatic actuators in inkjet printers
  • Diaphragms for electrostatic actuators in inkjet printers

Examples

Experimental program
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Embodiment Construction

[0014] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. Referring generally to the drawings, embodiments of the present invention provide diaphragms and methods of making diaphragms for use in electrostatic actuators. The diaphragm generally includes one or more full thickness sections, which may include static "node" sections and movable "piston" sections, and one or more thickness reducing deflection recesses. The node segment may be bonded to the substrate, the piston segment may be aligned with an electrode of an electrode layer bonded to the substrate, and the flexure recess may be aligned with one or more traces provided by the electrode layer. The traces may be coupled to electrodes configured to exert an electrostatic force on the membrane.

[0015] This combination of full thickness sections and reduced thickness sections in the diaphragm can reduce the amount of electrical current u...

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PUM

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Abstract

The present invention provides a diaphragm for an electrostatic actuator of an inkjet printer and a manufacturing method thereof. The method includes electroplating a first layer on a mandrel, and applying a photoresist to the first layer. The method also includes electroplating a second layer on the first layer adjacent to the photoresist such that the first and second layers form a substantially uniform structure, and depositing the photoresist with the first and second The layers are separated to expose the one or more flexure recesses where the photoresist is positioned, wherein the membrane has a reduced stiffness adjacent the flexure recesses.

Description

technical field [0001] The present invention generally relates to electrostatic actuators for inkjet printers. Background technique [0002] Ink ejectors, or "jetstacks," are commonly found in inkjet printers and are capable of controlling the deposition of ink on the medium on which it is desired to print, such as paper. The jetting tubes are usually provided by a series of brazed steel plates which include one or more manifolds to deliver ink received from an ink reservoir to an array of nozzles which dispense the ink. The spray tube may also include an actuator, such as a piezoelectric transducer connected to a power circuit, such that the actuator can be selectively activated. When triggered, the actuator deflects, energizing a volume of ink to advance through the nozzle onto the media. In this way, by selectively triggering the actuators, the deposition of ink can be controlled electrically. [0003] As higher resolution printing is desired, the density of actuators ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/015
CPCB41J2/14314B41J2/1623B41J2/1632B41J2/1643B41J2/04C25D5/60
Inventor P·J·奈斯特龙
Owner XEROX CORP