EP 0560760 B1 19940817 - DROP-ON-DEMAND LIQUID EJECTOR ARRANGEMENT.
Title (en)
DROP-ON-DEMAND LIQUID EJECTOR ARRANGEMENT.
Title (de)
ANORDNUNG ZUR GESTEUERTEN TINTENTROPFENERZEUGUNG.
Title (fr)
SYSTEME D'EJECTION SUR DEMANDE DE GOUTTELETTES DE LIQUIDE.
Publication
Application
Priority
EP 9002119 W 19901206
Abstract (en)
[origin: WO9210367A1] A droplet ejector arrangement, particularly for an ink-jet printer, is formed in at least one piezoelectric, preferably piezoceramic, wafer (20). Grooves formed in one side of the wafer act as ejector channels (21), with each ejector channel having a nozzle (25). The characteristics of the droplet ejector, i.e. the result of the effect of the ejector channels (21) on the liquid in terms of size, velocity and rate of emerging droplets, can be imparted to the channels during manufacture by selecting the appropriate length, depth and width of the channel (21), together with the length, depth and width of the nozzle (25). Flow characteristics of the liquid through each channel are optimized by providing regions with varying cross-sectional area in the channels (21).
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/055 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01)
CPC (source: EP)
B41J 2/14209 (2013.01); B41J 2/1609 (2013.01); B41J 2/1632 (2013.01); B41J 2002/14379 (2013.01); B41J 2002/14387 (2013.01); B41J 2202/11 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9210367 A1 19920625; DE 69011694 D1 19940922; DE 69011694 T2 19950126; EP 0560760 A1 19930922; EP 0560760 B1 19940817; JP H06502810 A 19940331
DOCDB simple family (application)
EP 9002119 W 19901206; DE 69011694 T 19901206; EP 90917446 A 19901206; JP 50013991 A 19901206