Global Patent Index - EP 0723866 A1

EP 0723866 A1 19960731 - INK JET HEAD, METHOD FOR PRODUCING THE SAME AND METHOD FOR DRIVING THE SAME

Title (en)

INK JET HEAD, METHOD FOR PRODUCING THE SAME AND METHOD FOR DRIVING THE SAME

Title (de)

TINTENSTRAHLDRUCKKOPF, VERFAHREN ZUR HERSTELLUNG UND VERFAHREN ZUM STEUERN DESSELBEN

Title (fr)

TETE A JET D'ENCRE, SON PROCEDE DE PRODUCTION ET PROCEDE DE COMMANDE ASSOCIE

Publication

EP 0723866 A1 19960731 (EN)

Application

EP 94929664 A 19941014

Priority

  • JP 9401730 W 19941014
  • JP 28037193 A 19931014
  • JP 11131294 A 19940525

Abstract (en)

A plurality of layers of a pair of laminated piezoelectric actuators (111) are laid on a substrate (110) so as to form a laminated piezoelectric unit. A diaphragm (115) is bonded to the upper end surface of the laminated piezoelectric actuator unit, and a flow path plate (118) is bonded to the upper surface of the diaphragm (115). Here, a plurality of pressurizing chambers (116) and ink flow paths (117) are formed in the flow path plate (118), and the pressurizing chambers (116) are disposed such that they confront the laminated piezoelectric actuators (111), respectively. Furthermore, a nozzle plate (120) having a nozzle hole (119) is bonded to the upper surface of the flow path plate (118), and ink inside the pressurizing chambers (116) is ejected via the nozzle hole (119) in a direction perpendicular to the base plate (110) by deforming the laminated piezoelectric actuators (111) widthwise by applying voltage. <IMAGE>

IPC 1-7

B41J 2/045

IPC 8 full level

B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01)

CPC (source: EP)

B41J 2/14274 (2013.01); B41J 2/1612 (2013.01); B41J 2/1623 (2013.01); B41J 2/1632 (2013.01); B41J 2/1634 (2013.01); B41J 2/1642 (2013.01); B41J 2002/14387 (2013.01)

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0897803 A2 19990224; EP 0897803 A3 19990310; EP 0897803 B1 20010725; DE 69427837 D1 20010830; DE 69427837 T2 20020404; DE 69427926 D1 20010913; DE 69427926 T2 20011206; EP 0723866 A1 19960731; EP 0723866 A4 19970326; EP 0897802 A2 19990224; EP 0897802 A3 19990310; EP 0897802 B1 20010808; WO 9510416 A1 19950420

DOCDB simple family (application)

EP 98120935 A 19941014; DE 69427837 T 19941014; DE 69427926 T 19941014; EP 94929664 A 19941014; EP 98120934 A 19941014; JP 9401730 W 19941014