EP 0040784 A2 19811202 - Arrangement for a print head in a matrix ink jet writing device.
Title (en)
Arrangement for a print head in a matrix ink jet writing device.
Title (de)
Anordnung für einen Schreibkopf in Tintenmosaikschreibeinrichtungen.
Title (fr)
Agencement pour une tête d'impression dans un dispositif à écrire à jets d'encre en forme de matrice de points.
Publication
Application
Priority
DE 3019822 A 19800523
Abstract (en)
[origin: US4368477A] A printing head for an ink mosaic printing device is provided with a plurality of diagonally extending ink ducts having downstream ends converging at a printing location on the printing head to form a printing grid pattern. The downstream leading ends of the ducts are formed with wedge-shaped tapered portions, each having a leading edge wall carrying a discharge orifice for ink droplets. By virtue of this construction of the ink ducts, more ink ducts may be used to form the grid pattern and the various discharge orifices may be placed closer to one another to provide higher printing resolution.
Abstract (de)
Tintenmosaikschreibeinrichtung mit einer Vielzahl von im Schreibkopf (7) angeordneten und jeweils an einer Austrittsstelle endenden Tintenkanälen (1). Die Tintenkanäle (1) besitzen in Richtung zur Austrittsstelle keilförmige Verjüngungen (2), damit ist eine enge Teilung der Austrittsöffnungen möglich.
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/055 (2006.01); B41J 2/135 (2006.01); B41J 2/155 (2006.01)
CPC (source: EP US)
B41J 2/14 (2013.01 - EP US); B41J 2/155 (2013.01 - EP US)
Designated contracting state (EPC)
CH FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0040784 A2 19811202; EP 0040784 A3 19820414; CA 1160905 A 19840124; DE 3019822 A1 19811203; JP S5724264 A 19820208; US 4368477 A 19830111
DOCDB simple family (application)
EP 81103805 A 19810518; CA 377949 A 19810520; DE 3019822 A 19800523; JP 7789581 A 19810522; US 26221181 A 19810508