Global Patent Index - EP 1046505 A1

EP 1046505 A1 2000-10-25 - Inkjet printhead

Title (en)

Inkjet printhead

Title (de)

Tintenstrahldruckkopf

Title (fr)

Tête d'impression à jet d'encre

Publication

EP 1046505 A1 (EN)

Application

EP 00201374 A

Priority

  • EP 00201374 A
  • EP 99201243 A

Abstract (en)

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).

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>

IPC 1-7 (main, further and additional classification)

B41J 2/14

IPC 8 full level (invention and additional information)

B41J 2/14 (2006.01)

CPC (invention and additional information)

B41J 2/14201 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

EP 1046505 A1 20001025

INPADOC legal status


2015-01-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20140709

2014-03-26 [INTG] ANNOUNCEMENT OF INTENTION TO GRANT

- Effective date: 20140226

2007-11-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20071030

2001-07-18 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB NL

2001-06-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010425

2000-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB NL

2000-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI