EP 0358723 B1 19920102 - PROCESS FOR THE PRODUCTION OF A PIEZOELECTRIC INK PRINTING HEAD
Title (en)
PROCESS FOR THE PRODUCTION OF A PIEZOELECTRIC INK PRINTING HEAD
Publication
Application
Priority
DE 3725500 A 19870731
Abstract (en)
[origin: WO8900920A1] Piezoelectric ink printing head in which at least one piezoelectric drive unit (1) acts on the ink in a channel (5) in such a way as to cause a drop-like jet of ink to be ejected from a nozzle (22) through piezoelectric constriction. The drive element (1) contains a piezo-ceramic part (2) with an ink channel (5); a first electrode (3) is positioned on the piezo-ceramic part (2) together with a second electrode (4) which is insulated from the first (3). The nozzle front (21) having at least one nozzle (22) is directly connected to the piezo-ceramic parts (2). The method provides for the ink printing head to be made in one piece from piezo-ceramic strip (46) with channel-like cavities and metal coatings.
IPC 1-7
IPC 8 full level
B41J 2/16 (2006.01); H10N 30/00 (2023.01)
CPC (source: EP)
B41J 2/1609 (2013.01); B41J 2/1634 (2013.01); B41J 2/1646 (2013.01)
Citation (examination)
Patent Abstracts of Japan, volume 9, Nr. 235 )M-415)(1958), 21 September 1985; JP - A - 60 090 770 (H. KOTOU) 21 May 1983.
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 8900920 A1 19890209; DE 3725500 A1 19890209; DE 3867476 D1 19920213; EP 0358723 A1 19900321; EP 0358723 B1 19920102
DOCDB simple family (application)
DE 8800444 W 19880718; DE 3725500 A 19870731; DE 3867476 T 19880718; EP 88905711 A 19880718