Browse Prior Art Database

DROP-ON-DEMAND EJECTOR

IP.com Disclosure Number: IPCOM000025137D
Original Publication Date: 1983-Oct-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 37K

Publishing Venue

Xerox Disclosure Journal

Abstract

Piezoelectric transducers are commonly utilized for ink jet ejectors. It has been found, however, that the fabrication process for these assemblies is limited by the need to keep the process temperature below that which would cause depoling of the transducer. This problem can be circumvented by using electrostrictive trans-ducers that are not poled, hence have no depoling temperature, in place of the conventional piezoelectric transducer. Further, materials with a high electro-strictive constant are easier to fabricate, and the devices are generally less expensive.

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CEROX DISCLOSURE JOURNAL

DROP-ON-DEMAND EJECTOR Proposed Anonymous Classification

U.S. C1. 346/140 Int. C1. Gold 15/16

Piezoelectric transducers are commonly utilized for ink jet ejectors. It has been found, however, that the fabrication process for these assemblies is limited by the need to keep the process temperature below that which would cause depoling of the transducer. This problem can be circumvented by using electrostrictive trans- ducers that are not poled, hence have no depoling temperature, in place of the conventional piezoelectric transducer. Further, materials with a high electro- strictive constant are easier to fabricate, and the devices are generally less expensive.

Volume 8 Number 5 September/October 1983 415

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416

    XEROX DISCLOSURE JOURNAL Volume 8 Number 5 September/October 1983

[This page contains 1 picture or other non-text object]