EP 0062353 B1 19840815 - LIQUID DROPLETS RECORDING DEVICE
Title (en)
LIQUID DROPLETS RECORDING DEVICE
Publication
Application
Priority
DE 3114259 A 19810408
Abstract (en)
[origin: US4409602A] A mosaic recorder having a plurality of nozzles for ejecting recording liquid droplets on a moving recording medium for punctiform representation of characters and images, each nozzle having a piezoelectric transducer associated therewith and said nozzles being arranged in a recording head adjacent to one another in rows, has an improved nozzle structure wherein the inlet opening of each nozzle is generally oblong in shape and the nozzle tapers to a smaller circular outlet opening from which the recording liquid is ejected. The relatively large size inlet opening increases the ratio of the inlet opening size to the outlet opening size, thereby increasing the ejection speed of the recording liquid droplet. The hydraulic separation between adjacent nozzles is also increased and the mechanical coupling between adjacent transducers is decreased by the oblong configuration of the inlet opening while the spacing between the nozzle outlet openings remains the same.
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/055 (2006.01); B41J 2/135 (2006.01)
CPC (source: EP US)
B41J 2/14282 (2013.01 - EP US); B41J 2002/14475 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0062353 A1 19821013; EP 0062353 B1 19840815; BR 8202010 A 19830315; DE 3114259 A1 19821104; DE 3260571 D1 19840920; JP H0324342 B2 19910403; JP S57178768 A 19821104; US 4409602 A 19831011
DOCDB simple family (application)
EP 82102955 A 19820406; BR 8202010 A 19820407; DE 3114259 A 19810408; DE 3260571 T 19820406; JP 5892682 A 19820408; US 36198782 A 19820325