Global Patent Index - EP 0780234 B1

EP 0780234 B1 20020306 - Ink cartridge and printhead for an inkjet printer

Title (en)

Ink cartridge and printhead for an inkjet printer

Title (de)

Flüssigkeitspatrone und Druckkopf für einen Ink-Jet-Printer

Title (fr)

Cartouche d'encre et tête d'impression pour imprimante à jet d'encre

Publication

EP 0780234 B1 20020306 (DE)

Application

EP 96810875 A 19961217

Priority

DE 19548032 A 19951221

Abstract (en)

[origin: EP0780234A2] The cartridge has a housing (25) with a base wall (26), side walls (27-29) and a top wall (30). One side wall (27) has an opening (31) for placing on a drop generator (2). A second wall (30) has a pump element (40) formed by bellows and an air feed aperture (47). The bellows is formed in one piece on the second wall. The folds (42) of the bellows are inclined wrt. the second wall and are U-shaped in front view, with two arms (44) which have a transition into the second wall at their free ends. A cover plate for the bellows contains the air feed aperture in the vicinity of the cross bars of the U-shaped folds.

IPC 1-7

B41J 2/175

IPC 8 full level

B41J 2/175 (2006.01)

CPC (source: EP US)

B41J 2/17506 (2013.01 - EP US); B41J 2/17513 (2013.01 - EP US); B41J 2/1752 (2013.01 - EP US); B41J 2/17553 (2013.01 - EP US); B41J 2/17503 (2013.01 - EP US)

Designated contracting state (EPC)

CH FR GB IT LI

DOCDB simple family (publication)

EP 0780234 A2 19970625; EP 0780234 A3 19981014; EP 0780234 B1 20020306; CA 2193333 A1 19970622; DE 19549438 A1 19970717; DE 19549438 C2 20001102; US 6059403 A 20000509

DOCDB simple family (application)

EP 96810875 A 19961217; CA 2193333 A 19961218; DE 19549438 A 19951221; US 77180196 A 19961220