Global Patent Index - EP 1046505 A1

EP 1046505 A1 20001025 - Inkjet printhead

Title (en)

Inkjet printhead

Title (de)

Tintenstrahldruckkopf

Title (fr)

Tête d'impression à jet d'encre

Publication

EP 1046505 A1 20001025 (EN)

Application

EP 00201374 A 20000418

Priority

  • EP 00201374 A 20000418
  • EP 99201243 A 19990419

Abstract (en)

Ink jet printhead comprising: at least one ink channel (16) connected to a nozzle (18) and defined between to opposed side walls (20); a membrane (22) interconnecting the side walls; and actuating means (24) arranged adjacent to the membrane (22) for deflecting the same, characterized in that the side walls (20) and the membrane (22) are formed by a one-piece member (14). <IMAGE>

Three-dimensionally structured metal foil (14) is formed on the top surface of substrate (12) to define a number of ink channels (16), each leading to a nozzle (18). Each ink channel (16) has a pair of opposed side walls (20) joined by a membrane (22) formed in a one-piece member. Piezo-electric actuators (24) are formed on each membrane (22) which, when electrically activated, cause an ink drop to be expelled from nozzle (18).

IPC 1-7

B41J 2/14

IPC 8 full level

B41J 2/14 (2006.01)

CPC (source: EP)

B41J 2/14201 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 1046505 A1 20001025

DOCDB simple family (application)

EP 00201374 A 20000418